When is facilitated diffusion necessary?

Answers

Answer 1

Facilitated diffusion is necessary when cell membranes prevents a substance from diffusing on its own.

Facilitated diffusion is a type of passive transport that involves movement of solute materials down the concentration gradient.

Further Explanation;Transport in living organismsPlants and animals use various processes to transport materials from one point to another.There are classified as either passive transport or active transport.Passive transportIt is a type of transport that does not involve the use of energy to aid movement of substances in living organisms.Passive transport involves free movement of substances and through special types of transporters or carriers.Types of passive transport includes; simple diffusion, facilitated diffusion, osmosis, and mass flow among others.Active transport It is a type of transport in living organisms that involves movement of substances against a concentration gradient and involves use of energy in form of ATP to aid transport of substances.Types of passive transportFacilitated diffusionFacilitated diffusion is a type of passive transport which involves the diffusion of solutes by use of transport proteins in the plasma membrane.Facilitated diffusion uses transport proteins to transport solutes down their concentration gradient. Osmosis Osmosis is a special diffusion that involves the movement of water molecules from a region where they are highly concentrated to a region where they are lowly concentrated through a semipermeable membrane.It may also refer to the movement of water molecules from a region of low particle concentration to a region of a high particle concentration.Diffusion Diffusion is a type of passive transport that involves movement of particles from a region of high concentration to a region of low concentration.Diffusion involves movement of molecules of substances other than water.

Keywords: Passive transport, Diffusion, Osmosis, Passive transport

Learn more about: Passive transport; https://brainly.com/question/6873289Active transport: brainly.com/question/11907495Osmosis: brainly.com/question/6032182Diffusion: brainly.com/question/7068868

Level: High school

Subject: Biology

Topic: Transport in living organisms

Sub-topic: Passive transport

Related Questions

Study an ecosystem of your choice, such as a meadow, a patch of forest, a garden, or an area of wetland. determine and list five major plant species and five major animal species in your ecosystem

Answers

(flowering plants, conifers, ferns and their allies) and of Bryophytes. plant species.

mammals, reptiles, grassland animals, freshwater animal, marine animals. animal species

What part of the brain is responsible for processing information about bodily sensations?

Answers

The answer to this question would be somatosensory cortex.

In somatosensory cortex, the brain is processing the signal from sensory nerve cells from the body. This input mostly coming from the skin. The area dedicated is not affected by the size of the organ. The area of the skin with more sensitivity, like the hand, will have much more area in the brain.

How are signals sent from one neuron to another by jumping across a tiny space or?

Answers

Transmitted via neurotransmitters. There is a gap between two neurons. This place where the axon meets with dendrite is callde synapse. Neurotransmitters which are chemicals help transmit the signals from axon to dentrite. Calcium ions play major role in this process.

How does the respiratory system facilitate excretion of wastes?

Answers

The respiratory system is the one that is responsible for breathing. During the breathing process, oxygen is taken into the lungs from the atmosphere and carbon dioxide is exhale out of the system.
The lungs facilitate excretion by excreting carbon dioxide and water vapors via diffusion and exhalation.

The importance of carbon what would most likely happen to the carbon cycle if there were no more plants on earth?

Answers

More carbon would be released from fossil fuels. Carbon would build up in the ... If plants weren't there to "breathe" the carbon, it would just sit in the world, and build up in the atmosphere.

Describe the differences in the ways the sand castle is changed by an ocean wave and by dylan stomping on it

Answers

A sand castle is changed gradually by an ocean wave; it is a process of erosion. Whereas when Dylan stomps on it, it is a process of instant devastation.

Which of these people is most closely related to the theory of gravitation?

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This was one of the theories of Sir Isaac Newton, the British physicist, mathematician and scientist who lived from 1642 to 1727. Gravitational Theory is the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

What are the three main reason human geographers interested in ecosystems involving interaction of humans with the biosphere and abiotic spheres?

Answers

The interactions of the ecosystems are all part of the biosphere. The organisms in the biosphere interact with each of the other abiotic physical systems, namely the hydrosphere, the atmosphere and the lithosphere. These interactions not only shape the nature of the ecosystems, but also affect the geology and geography of the system.

What kind of behavior consists of complex interactions within groups and is seen in humans as well as ants and bees?

Answers

The animal is social behavior the suite of connections that occur between two or more of social behavior, however, involve interaction within aggregations or group of individuals that cooperative behaviors necessarily evolve for the good of the type.

Genetic disorders can result when sister chromatids fail to separate properly. during which phase is this problem most likely to occur?

Answers

When all is said in done, nondisjunction can happen in any type of cell division that includes requested dissemination of chromosomal material.
There are 3 types of nondisjunction: the disappointment of a couple of homologous chromosomes to isolate in meiosis I, a disappointment of sister chromatids to isolate amid meiosis II, and disappointment of sister chromatids to isolate amid metaphase going into anaphase of mitosis.

__Answer__

D. Mitosis

Is your correct answer

We have discovered dead fish floating around our boat. we think that the dead fish are caused by a sudden increase in a red tide algae bloom. what would be a properly written hypothesis for our belief?

Answers

Hypotheses are typically written in an "if-then" format. This statement concerning algal increases could be properly written as "if the red algal concentration is higher than usual, then there will be dead fish floating on the surface of the water." These statements allow us to test the belief and see if there are causal links between the two.

which of the following was rudolf Virchow's contribution to our understanding of cells

Answers

cells came from pre-existing cells

The correct answer is all cells are generated from the pre-existing cells.

Rudolf Virchow was a German pathologist, doctor, and anthropologist well-familiar for his work in the development of cell theory. He is known as the father of pathology. He is accredited with many essential findings.

He is famous for his scientific contribution in cell theory as he was one of the first to demonstrate that the origin of the cells had taken place from the differentiation of the pre-existing cells.

Why do arteries have more muscle and elastic tissue than veins?

Answers

Arteries are under high pressure generated by the heart.

Artery have thick and more muscular tissue to withstand high blood pressure. Arteries pumps blood to all parts of the body.
The lumen of arteries are small, this gives them high pressure, they require very high pressure so that blood can reach all part of the body.

“lord randall” is an example of a ballad whose structure is

Answers

“Lord Randall” is a Scottish ballad in the form of a narrative song. A narrative song is a song that depicts or tells a story. A ballad is unique for it directly tells a story and emphasizes climactic incidents. It strips away those details which are not important to the plot. The story of “Lord Randall” narrates about a man who has been poisoned by his lover. The story does not tell about the incident’s background nor is the audience aware why the man has been poisoned. The story just shows the man revealing that he has been poisoned, his statement of his last will and testament, and his curse on the lover who planned to kill him. The technique shown in this story is what we call the incremental repetition. The incremental repetition is usually observed in poetry of oral tradition wherein a line is repeated in a changed context or with minor changes in the repeated part.

Final answer:

The structure of “Lord Randall” is a traditional ballad form, consisting of four-line stanzas or quatrains with an ABCB rhyme scheme and a rhythmic pattern of alternating iambic tetrameter and trimeter.

Explanation:

“Lord Randall” is an excellent example of a traditional Anglo-Scottish ballad. The ballad's structure typically employs four-line stanzas known as quatrains, with an ABCB rhyme scheme where the second and fourth lines rhyme.

The rhythmic composition often follows a pattern of alternating lines of eight and six syllables, which is characteristic of iambic tetrameter alternating with iambic trimeter.

This structure contributes to the musical quality of ballads, which were traditionally sung, often a cappella or with simple instrument accompaniment, and passed down orally from one generation to another to tell a story, usually containing a lesson or moral.

The repetitions and parallelisms in the dialogue of “Lord Randall” help to advance the narrative and are a hallmark feature of balladic storytelling.

describe the location and function of the patron system

Answers

patronage in ancient rome

Describe the major differences in acute versus passive range of motion (rom) when distinguishing between an articular and nonarticular joint issue.

Answers

The question should be about active vs passive range of motion.

In the active range of motion, the test is done by asking the patient to move their body themselves. In this case, the patient should use their muscle to move their body. If there is a restriction in this examination, it could be caused by the muscles or the joints, or the nervous system that used to contract the muscle.
In the passive range of motion, the test is done by the examiner moving the patient body. Since no muscle used, the test shouldn't be influenced much by the muscle. Then, if there is an articular joint issue, the restriction would be found in both passive and active ROM, but the nonarticular joint issue might only cause abnormality in the active ROM.

The major difference between an acute and passive range of motion based on the articular and non-articular problem is that:

In articular problems, active and passive range of motion is restricted. In non-articular problem, only articular range of motion is restricted.

Further Explanation:

The joints are formed by the articulation of the two or more bones and muscles. These joints are the characteristics of the range of motion. The articulation of the bone type determines the type of movement. The articular structure is consisting of synovial fluid, synovium, intra-articular ligaments, articular cartilage, and joint capsule. Bone, muscle, nerve, tendons, ligaments are non-articular structure.

Articular problems are described by swelling, diffuse pain and a very limited range of motion on passive and active movement. Non-articular problems are more painful in the active range of motion, whereas no pain in passive motion.

To examine the active range of motion, a doctor asked a client to move their body. There is no external force or pressure is applied to the body, whereas in a passive range of motion, an external force is applied to move the body. In the case of a particular problem, there is a restriction in the movement of joints.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Musculoskeletal system

Keywords:

Joint, bone, swelling, active, passive, range, motion, pain, body, limited, restriction, movement, bones, articulation, nerve, bone, synovial fluid.

Which of the following statements about olfactory receptors is false?
They are bulb-like structures at the tip of the frontal lobe where the olfactory nerves begin.

They are cells.

They are located in a mucous membrane at the top of the nose. \

They have small, hair-like extensions.

Answers

The correct option is A.
Olfactory receptor are not bulb like structures at the tip of the frontal lobe. Olfactory receptors are cells located in the mucous membrane at the top of the nose. Small hair like structures located in these receptors is the site for odor molecules dissolve in the mucous.

The false statement about the olfactory receptors is they are bulb-like structures at the tip of the frontal lobe where the olfactory nerves begin.

Further Explanation:

Receptors are the protein molecules present on the cell surface which binds to the ligand and cause response in the immune system. Receptors have the primary role in controlling membrane channels, cell division, and cell growth.

Olfactory receptors are an odour or smell molecules which are mainly found in arthropods, animals and terrestrial vertebrates. These receptors are present in the nasal cavity forming nasal epithelium. It consists of cilia which are covered by the mucus of the nasal cavity. Cilia facilitate the response to olfactory receptors.

Olfactory receptors are not bulb-like structure. It has an olfactory bulb that lies on the ventral aspect of the frontal lobes. Olfactory receptors are the cells located in a mucous membrane at the top of the nose. They have small hair-like extensions which are particularly known as cilia. These cilia contain active sites for the process of olfactory transduction.

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Answer Details:

Grade: High school

Subject: Biology

Chapter: Sensory organs

Keywords:

Receptors, frontal lobes, olfactory receptors, ligand, protein, cell division, cell growth, arthropods, vertebrates, nasal cavity, nasal epithelium, olfactory bulb, cilia, olfactory transduction.

what are the outer limits of the ph scale how low and high does it go and what does this mean

Answers

ggg . gggg gggg ggg . gggg

Pure fuming sulphuric acid has a pH somewhere around -1. Except the idea becomes somewhat silly because there are no water molecules to protonate.

I don’t know what the strongest base is, around the 14 mark.

Something caused by injury is termed iatrogenic. true false

Answers

True is the right answer.

Answer: True

Explanation:

The action or allergy which results in injury or illness caused by the activity of physician or a medical therapy can be termed as iatrogenic. This is common among patients of surgery. Thue this can be said that the given statement is true.

Biology 1 Course - McDougal Litell Biology Book: "Describe the similarities and differences among images from light microscopes, scanning electron microscopes, and transmission electron microscopes

Answers

This should help you out

Salivary amylase is released in the mouth where it breaks down sugars. however, it is inactive once it reaches the stomach where ph is quite low. knowing the effect of ph on enzyme function, select all that describe why this happens.

Answers

Amylase needs an optimum pH for its activity. It is in the range of 6-7. Below or above pH will denature this enzyme. The pH level is optimum for this enzyme in the mouth and hence it catalyses the break down of sugar. The pH level of stomach is lower than its optimum level duet to the activity of gastric acid. Hence the enzyme becomes inactive in the stomach.

If 1000 f2 offspring are obtained, how many flies of each phenotype are expected?

Answers

In Drosophila + indicates wild-type allele for any gene, m is mahogany and e is ebony. Female parents are m+/m+ and males are +e/+e. F1 are m+/+e, all wild type. F1 females are crossed with me/me males - the test cross. Offspring will be : non recombinant m+/me, mahogany wild type or +e/me wild type ebony. OR recombinant me/me mahogany ebony or ++/++ wild type. As the two genes are 25 map units apart, the percentage of recombinants will be 25% and therefore percentage parental types will be 75%. 75% 1000 is 750. There are two parental types, so you would expect 375 of each. Therefore, you would expect 375 m+/me and 375 +e/me. 25% of 1000 is 250 split between two recombinants =125 of each. Therefore you would expect 135 me/me and 125 ++/++

Temperature Change Burning Food

Food sample Mass of Food (g) Starting Water Temperature (C) Final Water Temperature (C)
Saltine Cracker 2 22 23.5
Pecan 2 22 30.5
Dorito chip 2 22 28.0
Peanut 2 22 29.0
Cheeto 2 22 24.5

All foods contain chemical energy, but the amount of chemical energy is dependent of the type of food. The larger the compound, the more chemical bonds, and the greater amount of available chemical energy. We refer to the stored chemical energy in foods as calories. A calorie is the amount of energy required to raise the temperature of 1 gram of water 1 degree Celsius. When we refer to the calories in food, we are really talking about kilocalories or 1000 calories.

Biology students used calorimetry to determine the energy provided by various food samples. They picked food samples of the same mass, 2 grams, and then set the food on fire using kitchen matches. The heat energy of the flaming food was used to heat 100 mL of water. Student results can be seen in the chart above.
What is one condition that may have reduced the accuracy of the temperatures recorded by the student groups?
A) type of foods used in the experiment
B) placement of thermometers in the cans
C) mass of food items used in experiment
D) amount of water measured into the cans

Answers

What is one condition that may have reduced the accuracy of the temperatures recorded by the student groups?C

Answer: Option B

Explanation:

The placement of thermometers in the cans be a condition in which the accuracy can be reduced.

Calorie can be defined as the the energy required to raise the temperature of one gram by one degree Celsius.

The weight of the different foods is kept same and the initial temperature is also kept same.

The placement of thermometer should be accurate in order to get the accurate result free of error.

Researchers have difficulty ascertaining the relationship between testosterone and human aggression because
a. testosterone levels fluctuate dramatically in response to environmental stimuli.
b. neurotransmitters complicate matters by also affecting human behavior.
c. only males produce testosterone, and it cannot explain female aggression.
d. both a and b are correct.

Answers

D, both a and b are correct. Measuring the relationship between testosterone and aggression is a complicated task since testosterone levels can vary significantly on outside stimuli on the individual and on the health of that individual. Likewise there are numerous other factors involved in human aggression and various other hormones and neurochemicals that influence aggression. This results in a complex and dynamic system that is difficult to study.

What type of map would most likely be used to show distribution of soybean farms in Illinois

Answers

Thematic map.

A thematic map is a map that emphasizes a particular theme or special topic such as the average distribution of rainfall in an area.

Thematic map is the type of map that would most likely be used to show distribution of soybean farms in Illinois.

A thematic map is a type of map that is specially created to display a certain theme or topic associated with a particular geographic area. A thematic map gives special importance to a certain topic such as the average distribution of rainfall in a particular area. This map uses natural features like political boundaries, coastlines, rivers, and city locations as reference points to improve an individual’s understanding of the map's purpose and topic. Types of thematic map include; choropleth map, dot map, contour map, dasymetric map, and graduated symbols.

A farm pond, usually dry during winter, has plenty of water and aquatic pond life during the summer. one summer, sarah returns to the family farm from college. observing the pond, she is fascinated by some six-legged organisms that can crawl about on submerged surfaces or, when disturbed, seemingly "jet" through the water. watching further, she is able to conclude that the "mystery organisms" are ambush predators, and their prey includes everything from insects to small fish and tadpoles. sarah observed that the mystery pond organisms never come up to the pond's surface. if she catches one of these organisms and observes closely, perhaps dissecting the organism, she should find

Answers

Sarah should found a Gills when she observes closely and dissecting the organism. A gills is what species in the water use for breathing, when people or human have lungs to breathe, fish or underwater species use gills to breathe in water. It is a respiratory organs of animals especially fish.

Answer:

I am confused

Explanation:

Which of the following represents a negatively charged ion?

F
F+
F-

Answers

the third one, F-, is correct

Answer: The correct answer is F-

If the sequence in the coding strand of dna for a particular amino acid is 5'agt3', then the anticodon on the corresponding trna would be ________.

Answers

Final answer:

The anticodon on the corresponding tRNA would be 5'uga3'.This anticodon binds to the codon on the mRNA during protein synthesis.

Explanation:

The coding strand of DNA is the strand that is used as a template to make the mRNA molecule.

In the coding strand, the sequence 5'agt3' corresponds to the sequence 3'tca5' in the template strand.

The anticodon on the tRNA molecule that pairs with the codon 3'tca5' is 5'uga3'.

This anticodon binds to the codon on the mRNA during protein synthesis.

Food manufacturers often round the amount of calories in a food serving up or down. in this nutrition facts panel from a one-ounce serving of chips (about 12 chips), the manufacturer says there are 160 calories. if that same food label says there are 10 grams of fat, 14 grams of carbohydrate, and 2 grams of protein, how many calories are really in one serving?

Answers

the answer is 280 calories.

How do animals on other farms respond when they hear rumors about animal farm?

Answers

Answer:

rebelliousness

I just took the assignment and thats the answer I went with

When animals on other farms respond when they hear rumors about animal farm Rebellion.

What is rebellion?

Each day, Snowball and Napoleon dispatched flocks of pigeons with the instructions to interact with the livestock on nearby farms, share the Rebellion's narrative with them, and teach them the tune to Beasts of England.

This notion was utilized by Presidents Truman, Eisenhower, Kennedy, and Johnson to support their military operations in Vietnam, Greece, and Turkey, nations they wanted to "rescue" from the rise of communism. The owners of the nearby farms in Animal Farm worry about a similar outbreak, which we might refer to as the "Snowball Effect."

Mr. Pilkington and Mr. Frederick propagated false information about Animal Farm in a similar manner to how the West attempted to discredit Russian communism.

Therefore, When animals on other farms respond when they hear rumors about animal farm Rebellion.

To learn more about rebellion, refer to the link:

https://brainly.com/question/13938004

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