The red blood cell liposomes are more hypertonic relative to water than the frog egg liposomes.
The red blood cell liposomes are more hypertonic relative to water than the frog egg liposomes.
True, because they contain more ion channels which provide higher concentrations of ions.
True, because the concentrations of Na and Ca ions in red blood cells liposomes are higher than those of the frog egg liposomes.
False, because the interior solution in both sets of liposomes is the same.
False, because the concentrations of Na and Cl ions in red blood cells liposomes are lower than those of the frog egg liposomes.
The hypertonicity of red blood cell liposomes and frog egg liposomes would depend on the respective concentrations of solutes, notably ions, within each. Carrying out measurements of these concentrations is crucial for a definitive comparison. Ion channels do not directly influence hypertonicity.
Explanation:Whether the red blood cell liposomes are more hypertonic relative to water than the frog egg liposomes depends on a few factors. To determine this, we would need to measure the concentrations of various ions in both types of liposomes.
In general, a solution is considered hypertonic if it has a higher concentration of solutes. Therefore, if the concentration of ions, particularly Na and Ca ions, in the red blood cell liposomes, is higher than the frog egg liposomes, then they would be more hypertonic. However, without specific concentrations, we cannot definitively say one is more hypertonic than the other.
It's also important to note that the presence of ion channels doesn't necessarily make a solution more hypertonic, as the hypertonicity is influenced by the concentration of solutes within the solution, not the pathways for solute movement.
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The two main components of plant fertilizers which affect algal growth when they are delivered to aquatic systems via runoff are nitrate and .
Daily rhythms of sleep and wakefulness are regulated by the _____, which is found in the _____.
What are the characteristics of Science ?
Final answer:
Science is based on evidence and logic, open to revision, testable, and predictive.
Explanation:
Based on evidence and logic: Science relies on gathering evidence through systematic study and making logical conclusions based on that evidence.
Open to revision: Scientific ideas are open to revision and change as new evidence and information becomes available.
Testable: Scientific ideas can be tested through experiments or observations.
Predictive: Science can make predictions about natural phenomena based on established theories and principles.
Josh finds that there definitely is a relationship between enzyme action and temperature and graphs his results. The enzyme functions as a biological catalyst and has its optimum effectiveness at A) 30 degrees. B) 39 degrees. C) 59 degrees. D) 60 degrees.
Answer:
B) 39 degrees
optimum means highest so the highest degree is 39 degrees.
Water striders are common insects that can skip across the surface of ponds and streams. this lifestyle is enabled by water's _____
Final answer:
Water striders are able to stand and skip across water due to water's surface tension, which is caused by cohesive forces between water molecules that create a 'skin' on the water's surface strong enough to support their weight.
Explanation:
Water striders are common insects that can skip across the surface of ponds and streams. This lifestyle is enabled by water's surface tension.
Surface tension results from cohesion or the attraction between water molecules at the surface of a body of water. This cohesive force creates a sort of 'skin' on the water's surface, which is able to support small insects like water striders, pond skaters, and water skaters. These insects are heavier than water, but because the force they exert downward is less than the force exerted among the water molecules at the surface, they do not sink.
Surface tension is a remarkable property that allows these small insects to effectively walk on water, making it seem as if they are floating. The legs of a water strider have adaptations that distribute their weight over a larger area, which helps to prevent breaking through the water surface.
How and why can virtually all organisms-plants, animal, and bacteria- use the exact same energy molecule, ATP?
Which of the following has mechanical energy?
A. Battery
B. Burger bun
C. Stretched band
D. Visible light
Answer:
C. Streched band
Explanation:
When a spring is coiled up or a rubber band is stretched, mechanical energy is stored in it. When the spring uncoils or the rubber band snaps back, this energy is released. This stored mechanical energy is called potential energy because it has the potential to make things happen.
Sorry that this is so late
Answer:
stretched band
Explanation:
Hope this helped!
:D
Cryptozoology is a field of study aimed at proving the existence of mystery animals such as Bigfoot and the Loch Ness monster. Why is cryptozoology not considered a true science?
Answer:
The answer is Cryptozoology is a pseudoscience that is incompatible with the scientific method
Explanation:
Cryptozoology is a practice that tries to prove the existence of extinct, mythological or folkloric animals. Cryptozoology is a pseudoscience, which is a belief or practice that is presented as scientific and factual, but is incompatible with the scientific method, since it is characterized by the use of vague, contradictory, exaggerated or infallible statements.
The red blood cell liposomes contain more aquaporins than the frog egg liposomes true or false
what must obtain energy through their diets
Answer:
Heterotrophs
Explanation:
The organisms that can not make their own organic food obtain the energy and nutrition from the food they eat. These organisms that depend on plants or other organisms for their energy are called heterotrophs.
For example, the human can not carry out photosynthesis as plants do. So, human obtain their energy from the food derived from plant and/or animal sources they eat.
which of the following animals exhibits bilateral symmetry
Answer:the answer is D(the seahorse
Explanation: From source
Identify and explain three major issues that cut across psychology
List 3 ways that living creatures use carbohydrates
What type of model is a computer game?
what kind of data would you need to collect to carry out this experiment to see if corn plant grow faster then peas plants
Paraphrase the explanation of how a virus reproduces. why did the fact that hela cells are malignant make them particularly useful in the study of viruses?
Light is passed through a solution with a light path of 1 cm and the absorbance is recorded as 0.30. If light is passed through the same solution at the same wavelength and the light path is increased to 2 cm, the absorbance should be
Julie discussed wanting to become pregnant with her gynecologist. that doctor required julie to have a thorough physical examination by her internist, including ensuring all vaccinations were up to date before becoming pregnant. once the gynecologist received the internist's report that julie's medical examination was normal, he referred her to another physician in his practice, an obstetrician. an obstetrician is a _____.
An obstetrician is a doctor who specializes in caring for women during pregnancy and childbirth, within the field of obstetrics and gynecology.
An obstetrician is a doctor who specializes in the care of women during pregnancy and childbirth. Obstetrics and gynecology (OB/GYN) is a branch of medicine focusing on the diagnosis, treatment, and management of the female reproductive system, including during the prenatal period.
Reproductive endocrinologists further specialize within this field, requiring additional training and board certification to practice.
What shape of fiber is wool?
Answer:
The wool fiber is cylindrical in shape, resembling a flat tube.
Explanation:
The natural hair coat of sheep commonly called sheep, sheep, lambs or lambs is called wool. The wool hairs grow from the epidermis of the animal and are more or less short, thin and wavy. These are the characteristics that will define the quality of the wool type.
The shape of the wool fiber is more or less cylindrical, resembling a flat tube. Each fiber consists of a point, a shaft and a root. The tip only exists in first shearing fibers. The root consists of a bulb that is softer than the stem and where the cells are developing.
Which nursing interventions should be included in the plan of care while cora is in traction?
What portion of the molecule in model 1 is responsible for the phospho- part of the structure?
The phosphate group is responsible for the phospho- part of a structure, critical in phosphorylation processes that regulate protein function and activity in cells. This group alters the molecule's structure and interactions, influencing cellular processes.
Explanation:The portion of a molecule responsible for the phospho- part of a structure is the phosphate group (or phosphorus atom surrounded by oxygen atoms). This group is essential in phosphorylation, a critical biological process where a phosphate group is added to a protein or other organic molecule. Phosphorylation can dramatically change a protein's structure and function by altering its ability to bind to other molecules or affecting its activity levels.
The addition of a phosphate group to serine, threonine, or tyrosine residues in proteins, as mentioned in various studies and models such as the TH active site changes upon phosphorylation and the protein phosphatase 1 active site structure, represents this significant biochemical transformation. The phosphate group introduces a charged, highly reactive site on the molecule, which can cause conformational changes due to electrostatic repulsion or attraction, hence affecting the molecule's interaction with other molecules and ions.
In biological systems, phosphorylation is often mediated by enzymes, such as kinase, which facilitate the transfer of the phosphate group from ATP (adenosine triphosphate) to the target molecule. This process is critical for regulating a wide range of cellular processes, from signal transduction pathways to cell growth and apoptosis. The structural impact of phosphorylation emphasizes why the phosphate group (phosphoryl transfer) is so vital in biochemical processes, offering a switch-like mechanism to turn on or off a molecule's activity.
What organelle must temporarily break apart so that the dna can divide up?
The organelle that must temporarily break apart to allow DNA division (replication) to occur is the nuclear envelope. The nuclear envelope is a double membrane structure that surrounds the nucleus of eukaryotic cells.
The nuclear envelope is a double membrane structure that surrounds the nucleus of eukaryotic cells. It separates the cell's genetic material (DNA) from the cytoplasm, where most of the cell's activities take place. During DNA replication and cell division (such as mitosis and meiosis), the nuclear envelope needs to be disassembled to allow the DNA to be accessed and replicated. In preparation for cell division, the nuclear envelope disassembles to allow the DNA to be replicated and divided into daughter cells.
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During prophase, the nuclear envelope dissociates into small vesicles and organelles like the Golgi complex and endoplasmic reticulum fragment and disperses toward the periphery of the cell. This process enables the division of DNA.
Explanation:During prophase, the nuclear envelope starts to dissociate into small vesicles, and the membranous organelles (such as the Golgi complex or Golgi apparatus, and endoplasmic reticulum), fragment and disperse toward the periphery of the cell. The nucleolus disappears (disperses). The centrosomes begin to move to opposite poles of the cell. Microtubules that will form the mitotic spindle extend between the centrosomes, pushing them farther apart as the microtubule fibers lengthen. The sister chromatids begin to coil more tightly with the aid of condensin proteins and become visible under a light microscope.
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Which dna sequences are complementary to 5’ catggacta 3’?
How does a plant provides a habitat to a field mouse
Time/Temperature Control for Safety Food (TCS)
Answer:
41-135 degrees
Explanation:
The innermost, soft core of the hair shaft is the
The cortex, a layer of compressed, keratinized cells, surrounds the medulla, the central core of the hair, and the cuticle, an exterior layer of extremely hard, keratinized cells. A longitudinal cross-section of the hair follicle shows these layers.
What is the hair shaft?The visible portion of the hair that protrudes from the skin is called the shaft.
The hair root is located in the skin and extends into the skin's deeper layers. The hair follicle, which is encased in a sheath of connective tissue and skin, surrounds it and is joined to a sebaceous gland.
The portion of the hair shaft that is not attached to the follicle is largely exposed at the skin's surface.
The remainder of the hair, which is rooted in the follicle, is referred to as the hair root and is located underneath the skin's surface.
Therefore, the medulla is the innermost, soft core of the hair shaft.
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A geneticist is studying two genes. each gene can be either dominant or recessive. a sample of 100 individuals is categorized as follows. gene 1 gene 2 dominant recessive dominant 56 24 recessive 14 6 (a) what is the probability that a random sampled individual, gene 1 is dominant (b) what is the probability that a random sampled individual, gene 2 is dominant (c) given that gene 1 is dominant, what is the probability that gene 2 is dominant
The probability of a random individual having dominant gene 1 is 56%, the probability of having dominant gene 2 is 70%, and the probability of gene 2 being dominant given that gene 1 is dominant is 89.2%.
Explanation:To find the probability that a random sampled individual has a dominant gene for gene 1, we need to divide the number of individuals with dominant gene 1 by the total number of individuals. In this case, there are 56 individuals with dominant gene 1 out of a total of 100 individuals, so the probability is 56/100, which simplifies to 0.56 or 56%.
Similarly, to find the probability that a random sampled individual has a dominant gene for gene 2, we divide the number of individuals with dominant gene 2 by the total number of individuals. In this case, there are 70 individuals with dominant gene 2 out of a total of 100 individuals, so the probability is 70/100, which simplifies to 0.7 or 70%.
To find the probability that gene 2 is dominant given that gene 1 is dominant, we consider only the individuals with dominant gene 1. Out of the 56 individuals with dominant gene 1, 50 individuals also have dominant gene 2. So the probability that gene 2 is dominant given that gene 1 is dominant is 50/56, which simplifies to 0.892 or 89.2%.
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Why is isopropanol miscible with cyclohexane?
Final answer:
Isopropanol is miscible with cyclohexane because it has a balance of polar and nonpolar characteristics, with its three carbon chain making it less polar, hence a better solvent for relatively nonpolar substances such as cyclohexanone. The 'like dissolves like' principle supports this miscibility.
Explanation:
Isopropanol is miscible with cyclohexane because it has a balance of polar and nonpolar characteristics which allows it to dissolve both polar and nonpolar substances. While isopropanol can form H-bonds with compounds like cyclohexanone due to its hydroxyl group, its three carbon chain imparts some nonpolarity, making it less polar compared to methanol. Hence, isopropanol is the better solvent for the relatively nonpolar cyclohexanone because like dissolves like; the nonpolar aspects of isopropanol are compatible with the nonpolar nature of cyclohexane.
The principle that 'like dissolves like' refers to the tendency for solvents to dissolve solutes that have similar intermolecular forces. Cyclohexane, being nonpolar, will better associate with isopropanol's nonpolar alkyl chain, resulting in strong solute-solvent interactions. This leads to a miscible mixture, as opposed to a mixture with a compound that has significantly different polarity, which might not be miscible.
On the other hand, compounds like ethanol and methanol have more extensive hydrogen bonding capacities due to their shorter alkyl chains and stronger polarity, which might not blend as well with the nonpolarity of cyclohexane, potentially leading to immiscibility.
At which site on the ribosome does the transfer rna dock initially during elongation?