Which statement best describes the plasma membrane? It is selectively permeable to certain substances. It is nonpermeable to substances outside of the cell. It is freely permeable to all substances. Its rigidity does not allow materials to enter the cell.

Answers

Answer 1
Hiya,

The plasma membrane is sorta like the military of the cell. It's function (it's meaning) is to serve and protect the cell from it's scary surroundings! Composed of proteins, it is very selectively permeable. Meaning it allows certain types of molecules or even ions to pass on through it, as in, active or passive transport.

So, the answer might be... 
A.) It is selectively permeable to certain substances. 

Hope this helps!

Related Questions

what are two organic functional groups in a phospholipid molecule?

Answers

Fatty acids and glycerol

___plants/factories use the force of water to generate electricity.

A. Combustion
B. Coal
C.Beta Ray
D. Hydroelectric
E. Oil
AB. all of the above
AC. none of the above.

Answers

the awnser will be e

Plants need carbon dioxide in order to survive. Plants get this gas from , which is something all organisms need.

Answers

All organisms need air. There are organisms called anaerobic organisms that don’t need oxygen, but all organisms need air.

Answer:

the answer is air

Explanation:

Which part of a neuron contains the nucleus?
axon
cell body
dendrite
myelin sheath
neural impulse

Answers

The cell body. Hope this helps
Final answer:

The nucleus of a neuron is located in the cell body, or soma, which is the central part of the neuron and holds other vital organelles.

Explanation:

The part of a neuron that contains the nucleus is the cell body, also referred to as the soma. The nucleus is the control center of the neuron and is where genetic material is housed. Surrounding the nucleus, the cell body also contains other important organelles, such as mitochondria, which are crucial for providing energy to the neuron. Dendrites are the parts of the neuron that receive nerve impulses from other cells, and they are connected to the cell body. The axon is another extension from the cell body that transmits nerve impulses away from the neuron to other cells or to muscle fibers or glands.

Three plants were tested under Red, Green and Yellow light. The growth of the plant was measured in centimeters.

What is the independent variable?

Answers

They're testing to see which will grow the tallest under the certain color of the light
The independent variable is the light because it can be changed

you are doing an experiment outside on a sunny day you find the temperature of some sand is 28 degress Celsius you also find the temperature of some water is 25 degrees Celsius explain the difference in temperatures/6947257/eea30378?utm_source=registration

Answers

Land is hotter than water because Land surfaces absorb much more solar radiation than water. This is due to the fact that most land surfaces are darker than water which of course means more absorption of solar radiation and heat. Water reflects most solar radiation that reaches its surface back to the atmosphere.this also causes water to heat up longer and cool down slower than land would

The temperature of the rock is higher than that of the water because the specific heat capacity of the water is more than rock.

Specific Heat Capacity:It is the amount of heat energy required to increase the temperature of 1 kg of a substance 1°C.If the specific heat capacity of a substance is higher, then it needs more heat energy to raise its temperature.The specific heat capacity of the water is more than rock.

Therefore, the temperature of the rock is higher than that of the water.

Learn more about Specific Heat Capacity:

https://brainly.com/question/1453843

Why should we learn about cells? Write a small 11 sentence paragraph please :) thanks

Answers

Studying cells helps us understand how organisms function. Cellular components work together to carry out life functions. Cellular processes enable organisms to meet their basic needs.  

There is your starter, you can do it! (: I believe in you!
Good Luck

what is the difference between the biological meaning of adaptation and the common meaning of adaptation

Answers

The biological meaning is when an organisms body adjusts to it's surrounding environment to survive. I would say for the common word is when you're able to get use to something or change your behavior on the behalf of another.

Adaptation is a word that can exist as different contextual meaning.

The biological meaning of adaptation refers to how organisms are better able to fit into their surrounding environment ensuring survival and reproductive success.

While

the generalized meaning of adaptation has to do with our behavioural changes to enable us tolerate some particular conditions.

Learn more about adaptation: https://brainly.com/question/25846058

Which is a carbohydrate monomer

Answers

Monosaccharides I believe is the monomer of carbs

which parts are the same in all nucleotides? which part is different

Answers

Nucleotides have the same phosphate group and Nitrogen containing base is different. 
Your answer is:

Nucleotides have the same phosphate group and Nitrogen containing base is different.

music question down below

Answers

D. strings because if you have a ¨concert band¨ with strings in it then it is called an orchestra.

Answer:

Strings

Explanation:

Band is a group of blowing instruments if that makes any sense

A gray wolf’s scientific name is Canis lupus. Which taxonomic groups are represented by “Canis Lupus”?

A. Phylum

B. Genus and species

C. Order and genus

D. Group and species

Answers

the answer is B i did the test before

The taxonomic group that is represented by “Canis Lupus" is Genus and species. The correct option is B.

What is taxonomy?

Taxonomy is the science of naming, describing, and classifying organisms, and it encompasses all of the world's plants, animals, and microorganisms.

The practice and science of categorization or classification is known as taxonomy. A taxonomy is a classification scheme, particularly a hierarchical classification, that organizes things into groups or types.

Taxonomy processes include characterization, identification, and classification. Organisms are classified into kingdoms, phylums, classes, orders, families, genera, and species.

"Canis Lupus" belongs to the taxonomic group Genus and species. Taxonomy employs hierarchical classification to assist scientists in understanding and organizing the diversity of life on our planet.

Thus, the correct option is B.

For more details regarding taxonomy, visit:

https://brainly.com/question/19184314

#SPJ6

what are the components of a phospholipid

Answers

two fatty acids ( long chains of Hydrogen and carbon) which are attached to a glycerol head , where the glycerol head is attached to a phosphate group
or generally Phospholipids consist of a hydrophilic head and a hydrophobic tail.

The components of a phospholipid are two hydrophobic fatty acid tails and a hydrophilic head consisting of a phosphate group attached to a glycerol molecule.

Phospholipids are essential molecules that form the basis of cellular membranes, displaying an amphiphilic characteristic. Each molecule has a distinctly structured head and tail. The head contains the hydrophilic (water-attracting) phosphate group (-PO4-3) and glycerol; this is where interaction with the aqueous environment occurs. Meanwhile, the tails consist of two fatty acids that are hydrophobic (water-repelling), preferring to avoid water. This unique structure facilitates the formation of a lipid bilayer in biological membranes, where the tails face inward, shielded from water, and the heads face the aqueous environment on either side of the membrane. Cellular membranes formed by phospholipid bilayers are critical as they maintain cellular integrity and control the movement of substances in and out of the cell. Modifications at the phosphate group, such as the addition of choline or serine, can further influence the properties and functions of the phospholipid.

Chemical processes store and release _____ in the bonds of molecules.

Answers

Energy is the answer

Explanation:

A bond formed by sharing or transfer of electrons is known as a chemical bond. Since, atoms in a chemical bond combine with each other through a chemical process as exchange of electrons has taken place.

So, there will be chemical energy present between the bonds of chemical compound.

For example, bond between K and Cl is ionic and it will have chemical energy as this bond is formed by transfer of electrons.

Therefore, we can conclude that chemical processes store and release energy in the bonds of molecules.

HALP VERY IMPORTANT PLZ GIVE GOOD ANSWER
Doing labs involves more than just following the steps of the scientific method true or false?

Answers

Science proceeds by scientific method and use of experimental method. The answer is true because following these steps will get the steps and results you need. There is nothing more to be done. The method is observe a question, make a hypothesis, test the hypothesis with controlled experiment, analyze data. reject or accept hypothesis, and form a conclusion. 

abiotic factors that best describe a coniferous forest.

Answers

precipitation, soil, temperature, humidity, and altitude 
Precipitation , soil, temperature, humidity, and altitude

music question down below

Answers

It is the ABA form song.

Answer:

B (Second one)

Explanation:

Sulfur dioxide _____.
creates a reddish-brown haze in the sky
is a secondary air pollutant
has an irritating odor and is colorless
is relatively harmless to the environment

Answers

Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO
2. At standard atmosphere, it is a toxic gas with a pungent, irritating smell. The triple point is 197.69 K and 1.67 kPa. It is released naturally by volcanic activity.

Has an irritating Odor and is colorless

Answer:

C) has an irritating odor and is colorless

Explanation:

Sulfur dioxide is a colorless gas with a strong, irritating odor. It is a secondary air pollutant, meaning that it is not emitted directly into the air but is produced when primary pollutants react with other substances in the atmosphere. Sulfur dioxide can create a reddish-brown haze in the sky, but it is generally considered to be relatively harmless to the environment.

List three reasons that snow predictions made by meteorologists are sometimes incorrect. Explain your response.

Answers

A reason that meteorologists are sometimes incorrect in predicting weather conditions is snow forecast. The conditions depend on the density level of the snow. Another reason is the imperfect data gathering especially if initial results are only gathered. The third reason is that computer models still find it difficult to see small scale phenomena.

Answer:

The following are the three reasons due to which sometimes the snow predictions made by the meteorologists are incorrect:  

a. Over-dependency on computers and not performing field works.  

b. Sometimes the presence of pollutants in the air makes weather forecasting tougher.  

c. In the majority of the situations, the meteorologists based their results on probability, and thus, chances of errors upsurges at certain times.  

the nucleus of the cell membrane is

Answers

an organelle, which carries most of the cell's genetic material

A fold in rock that bends upward into an arch is called a(n) a. anticline. b. syncline. c. plateau. d. canyon.

Answers

anticline, because SCIENCE

Answer: a. anticline

An anticline is a folded rock that bends upwards into an arch. The anticline rock is formed by initially flat rock that attains convex shape from upwards attaining an arch shape. In the process of formation of anticline rock, the older rocks gets deposited in the core region of the rock. Anticline rock formation is indicative of oil reservoir underneath. It is a source of natural gas, hydrocarbon oil like petroleum.

How is the Burmese python impacting the Everglades ecosystem?

Answers

The Burmese python is an invasive species. They can be up to 26 feet long causing them to dominate areas and naturally have no predators. They prey on many animals such as raccoons, rabbits, bobcats, and deer. This has caused a large decline in their population and some animals have even been put on the endangered species list due to the impact. The pythons are causing a large disruption to the food chain, taking prey from larger animals or killing off the larger animals causing a surge of others such as squirrels.

Hope this helped! If so please put me as brainliest answer.

Answer:

Can you plz give the other person brainliest, thx to her I got a 100%

the inscription on a marble gravestones become harder and harder to read over time. this is caused by ?

A. chemical weathering
B. frost wedging
C. evolution
D. mechanical weathering

Answers

A. Chemical weathering. 

ASAP!!!! What is the function of the organelle identified as #6 in the picture (it is mostly brown, folded over, and is in the lower right part of the cell)?
A) movement
B) houses the cells DNA
C) house the digestive enzyme
D) packages proteins for transport out of the cell

Answers

I think the answer is D "packages proteins for transport out of the cell"

Hope this helps!

Answer:

The correct answer is option D. packages proteins fr transport out of the cell.

Explanation:

The given image is a model of cell that shows all the organelles present in the  cell. The #6 is the golgi apparatus that is a brown, folded and present at the lower part of the cell.

The golgi apparatus plays an important role in cell. It is the site of modifying, packaging and transport of the proteins out of the cell by the prcess of the exocytosis.

Thus, the correct answer is option D.  packages proteins for transport out of the cell.

basking in the sun
swimming
increasing or decreasing activity level


These are all activities a cold-blooded reptile may do to maintain
A) homeostasis. B) body weight. C) peer dominance. D) blood sugar levels.

Answers

i think that the answer is A to your question

Correct answer: A). Homeostasis

Homeostasis is the tendency to maintain a constant internal environment. The body maintains homeostasis for many factors in addition to temperature.

All mammals and birds are same, i.e they maintain homeostasis as they are warm-blooded animals. However, reptiles or the cold-blooded animals maintain their internal body temperature by basking in the sun.



Can you die from drinking too much water? Explain using evidence about osmosis and cells.

Answers

Yes because when your osmosis has to much water it start to drown in a wired way
Final answer:

Drinking too much water too quickly can lead to water intoxication. This causes the dilution of electrolytes, an osmotic imbalance in cells, and potentially fatal cell swelling. Osmosis drives water into or out of cells to balance solute concentrations, and severe disruption can be lethal.

Explanation:

Yes, you can die from drinking too much water; this condition is known as water intoxication or hyponatremia. When you drink excessive amounts of water in a short period, it dilutes the sodium in your bloodstream. Cells must maintain a specific osmotic pressure to function correctly. Water intoxication occurs when the dilution of electrolytes in your blood causes an imbalance, leading to an influx of water into your cells. Cells swell as the water moves inward to balance the concentration of solutes on either side of the cell membrane due to osmosis. This swelling can lead to dangerous swelling of the brain, among other complications.

In the case of drinking a hypotonic solution like distilled water in vast amounts, you're introducing a fluid with lower osmotic pressure into your body. Our body cells, which have a higher solute concentration compared to the hypotonic solution, will draw water in to achieve equilibrium, potentially causing the cells to expand and rupture (hemolysis). Conversely, drinking a very salty solution like seawater, which is hypertonic, would cause your body cells to lose water and possibly shrink (crenation). Osmotic balance is critical for cells to function properly, and severe disruption can lead to cell and tissue damage, and ultimately death.

What proof is there behind evolution?

Answers

People believe that humans came from monkeys because of monkeys because the closest animals to humans. Scientists have done experiments seeing if the theory is true.Some experiments have gone wrong and some have gone right.
Final answer:

The evidence for evolution is supported by molecular evidence, fossil evidence, and evidence from living species.

Explanation:

The evidence for evolution is compelling and extensive. Looking at every level of organization in living systems, biologists see the signature of past and present evolution. Darwin dedicated a large portion of his book, On the Origin of Species, to identifying patterns in nature that were consistent with evolution, and since Darwin, our understanding has become clearer and broader.

In terms of molecular evidence, scientists have confirmed conclusions about evolution by studying molecules and DNA. For example, by analyzing DNA sequences or amino acid sequences, molecular clocks can be used to determine how closely species are related to each other. The fewer the differences, the less time has passed since the species split and began evolving into different species.

In addition, fossil evidence also supports evolution. Fossils provide a record of organisms that have lived in the past, and studying them has revealed how organisms have changed over time. Furthermore, comparing the anatomy, embryos, and DNA of modern organisms provides further evidence for evolution.

Compare the sexual and asexual reproduction methods in plants.

Answers

Asexual reproduction produces individuals that are genetically identical to the parent plant. The methods of asexual reproduction include: budding, grafting and cutting.
Sexual reproduction in plants produces individuals that only share some characteristics with the parents, but are not genetically the same. This is done primarily through pollination and fertilization.

some enzymes may be used to stop a reaction from moving forward
true or false

a chemical reaction producing energy for a cell is
a. Embden-Meyerhof Pathway
b. Glycolysis
c. Production of ATP occurs in the mitochondria in eukaryotes or on the plasma membrane of bacteria
d. All of the above

Answers

1. The statement above is TRUE. 
There are different types of enzymes which perform different functions. Some enzymes are capable of limiting chemical reaction, stopping the reaction from moving forward, such type of enzymes are called REGULATORY ENZYMES. This type of enzyme regulate the activities of other enzymes. The use of regulatory enzymes is one of the means which the body used to control biochemical reactions. 

2. A chemical reaction producing energy for the cell is GLYCOLYSIS.
Glycolysis is the biochemical process by which the glucose molecules are broken down in order to produce energy for the body. Embden-Meyerhof Pathway is one of the major pathway of glycolysis but it is not the only one, there are other glycolytic pathways in living organisms. Glycolysis is the principal way by which energy is supplied to the cells.

A Xw+m+Xwm female was mated to a XwmY male. Out of 1000 total F1 progeny there were 230 flies that were otherwise wild type with white eyes and 240 flies that were otherwise wild type with miniature wings. What is the distance between the genes for eye color and wing length?

Answers

In order to calculate the distance between two alleles/genes that are found in the same chromosome, we need to know how often crossing-over happened (recombination frequency). We know from the text that white eyes were linked to miniature wings and that wild type eyes were linked to wild type wings, so any phenotype that's contrary to these parent combinations are a result of crossing-over. We know then that 230 flies + 240 flies were a result of such recombination. To calculate the recombination frequency we only need to divide these flies (total of recombinant flies) by the total of flies in the offspring and turn it into percentage.
[tex] \frac{230+240}{1000} [/tex]=0.47
0.47*100%=47%
47 map units is the distance between the genes for eye color and wing length.

Final answer:

In a genetic cross of Drosophila flies, a calculation based on the number of recombinant offspring indicates that the genes for eye color and wing length are A. 47 map units apart.

Explanation:

The distance between the genes for eye color and wing length in Drosophila can be calculated by looking at the number of recombinant offspring produced in a genetic cross. Since we know that the traits for eye color and wing size are X-linked, we need to account for the fact that males are hemizygous, meaning they only possess one allele for an X-linked trait, which in this case is white eye color (X^w) and miniature wings (m).

Given that a female with genotype X^wm+X^wm was mated to a male with genotype X^wmY, the recombinant offspring are those that have a combination of traits that are not found in either parent. These are the flies with white eyes and wild-type wings, and those with red eyes and miniature wings.

In this scenario, there are 230 flies with white eyes and wild-type wings and 240 flies with red eyes and miniature wings out of 1000 total progeny. The sum of recombinants is 230 + 240, which gives us 470 recombinant offspring. To find the genetic distance in map units, we take the number of recombinant offspring (470) and divide by the total number of offspring (1000), then multiply by 100 to convert to a percentage:

(470 / 1000) × 100 = 47%

This means the genes for eye color and wing length are 47 map units apart.

Other Questions
The _____________ began on wall street in 2011 as a protest of the unprecedented and deepening inequality between corporate leaders and the vast majority of employees beneath them. Muthu reads 20 pages of a book in a day. After 6 days, 2/5 of the book is still unread. How many pages are there in this book? Narrative voice: in _____________ point of view, the reader doesn't see any character's inner thoughts and feelings, not even those of the point of view character. instead, the reader is only witness to outer actions and dialogue. Read the excerpt from a short story.They had laughed at the shabbiness of the hotel. Oh well, theyd said, we arent going to spend any time inside. And they had not. Theyd spent the day and evening sightseeing and had not retreated to their rooms until they were spent. Now Ana appraised her modest accommodations, remembering how the window in her room had amused her friends, as it offered a view of a brick wall not six inches away. You get what you pay for! theyd exclaimed, closing the heavy curtains.The window captured Anas attention again. As she readied for bed, she heard a persistent tapping coming from outside. Ana reasoned with herself, reminded herself that only small bird or bug in distress could fit in such a space. The tapping suggested otherwise, and she turned to investigate.How does the excerpt exemplify the ideas King describes in "Danse Macabre"?A. It allows readers to approach a forbidden door.B. It provides a single powerful spectacle for the imaginations eye.C. It forces readers to grapple with their own mortality.D. It excites readers with the concept of magic. Match the meaning to the root, prefix, or suffix. 1. under sub- 2. beyond; exceed intra- 3. bend duct 4. all, every omni 5. touch flect 6. within rupt 7. lead tac 8. burst ultra You have been the assistant manager at a small deli for the past three years, and you have made friends with many of the customers. You are thinking about opening up your own deli, and there is a great space just around the corner from your current job. You think many of the customers you have befriended will follow you to your new business. Is it fair to open a shop in competition with your current employer? Why or why not? Upon assessing the client's jaw, the nurse finds decreased range of motion and notes crepitus. what would the nurse suspect? Why did the british want to explore and settle the new world? What do hypotheses, theories, and laws have in common? The following quote is an example of what figurative language?"He now dug into the poor clergyman's heart, like a miner searching for gold." A. Hyperbole B. Metaphor C. Personification D. Simile I need help with #6 plzzzz Please help?What are main characterisitics of race and slavery in early colonial cities( 1620's-1670's)What are main charactekistics of race and slavery after early colonial cities(1620's- 1670's) The total amount of goods and services in the economy that will be purchased at all possible price levels is theA.aggregate supply.B.aggregate demand.C.aggregate output.D.aggregate market share. Which of the following is not a type of sentence ? A. Complex B.Simple compound C. Compound complex D Simple Suppose you extracted dna from a cheek cell that contains two copies of the same alu insert (one on each homologous chromosome). after 30 cycles of pcr, how many total copies of this region would be produced (assuming successful amplification)? show your work. Overdosing on Narcotics can cause death by respiratory failure. a) true b) false Braic equation. two airplanes leave chicago at the same time and fly in opposite directions. if one travels at 490 miles per hour and the other at 470 miles per hour, how long will it take for them to be 4,800 miles apart The titanic sank on april 1415, 1912 after hitting an iceberg. ironically, this ship had been dubbed the "unsinkable." this was a tremendous shock. in 1985, the wreck was discovered and explored. why did the 46,000-ton ship sink in less than three hours? how can you get rid of cluttered writing Which of the following statements is true about the lithium and the helium atoms? A. Lithium has more protons, neutrons, and electrons. B. Lithium is much smaller than helium. C. There is no difference between helium and lithium. D. Helium has more protons, neutrons, and electrons.lium atoms? Steam Workshop Downloader