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Svetach [21]
2 years ago
10

2. Describe the permeability of cell membranes. How to substances cross cellmembranes? Utilize the terms bi-polar, semi-permeabl

e, diffusion, active transport, membrane
proteins, endocytosis, exocytosis, vesicles, phagocytosis, pinocytosis, etc. (This should be 3-4paragraphs long)
Biology
1 answer:
Tju [1.3M]2 years ago
6 0

The permeability of a cell membrane simply means the ability of the cell membrane to allow solutes and solvents diffuse or pass through it

In biology, substances moves in and out of cells through semi-permeable membranes of the cell in a function of different metabolic processes such as:

  • Osmosis: This is the movement of substances from a region of low concentration to a region of high concentration
  • Diffusion: This is the movement of substances from a region of high concentration to a region of low concentration
  • Phagocytosis: This involves the movement of substances through phagocytic bacteria
  • Endocytosis: This involves the movement of substances into the cell
  • Exocytosis: This involves the movement of substances outside the cell environment
  • Pinocytosis and others

So therefore, thee permeability of a cell membrane simply means the ability of the cell membrane to allow solutes and solvents diffuse or pass through it

Learn more about the permeability of cell membrane:

brainly.com/question/19485474

#SPJ1

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Calories from saturated fats and/or added sugars in foods that have little or no nutritional value, such as sausages and ice cre
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5 0
2 years ago
Study the cladogram. Which two organisms would be the least related?
Svet_ta [14]
C. lizard and chimpanzee

8 0
3 years ago
Read 2 more answers
In a population with two alleles, B and b, the allele frequency of b is 0.4. B is dominant to b. What is the frequency of indivi
Yuki888 [10]

Answer:

The frequency of the dominant (normal) allele in the population (p) is simply 1 - 0.02 = 0.98 (or 98%). The percentage of heterozygous individuals (carriers) in the population.

Explanation:

(i found it here if you have questions

Hardy-Weinberg - Kansas State Universitywww.k-state.edu › parasitology › biology198 › answers1)

4 0
3 years ago
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Each of 100 laboratory rats has available both plain water and a mixture of water and caffeine in their cages. After 24 hours, t
olchik [2.2K]

Answer:

C. About 18 percent of the variation in blood pressure can be explained by a linear relationship between blood pressure and caffeine consumed.

Explanation:

Here, r = 0.428

∴ We can say it will give a positive curve, as 0.428 indicates it is a positive correlation.

Though the amount of correlation is low, still it is positive and more than 0.4

So, nearly about 18% of the variation in the blood pressure can be observed by the consumption of caffeine water. As consumption of caffeine water and blood pressure is both increasing so we can say that r= 0.428 will give a positive linear curve.

 

3 0
3 years ago
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