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Yakvenalex [24]
3 years ago
8

What does it mean to say that a membrane is selectively permeable?

Biology
1 answer:
lawyer [7]3 years ago
7 0
To be selectively permeable means to only let certain things pass through. In the case of the cell, it will let things that the cell needs in and things that the cell doesn't need out.
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The main function of the small intestine is nutrient absorption. Which of the following structural qualities of the intestine in
Bogdan [553]

Answer:

The correct answer will be option a and b.

Explanation:

The food is digested and absorbed in the small intestine, a long folded tube which lengths about 20 ft or 6m.  

The small intestine increases the surface area for food absorption as they have circular folding as well as the finger-like projections called villi and microvilli in the lumen of the intestine. These villi help in absorption of the nutrients from the intestine.

Thus, option a and b are the correct options.

7 0
4 years ago
What happens to an animal cell in a hypertonic solution?
jarptica [38.1K]

<span>The answer is that cell will shrink.</span>

<span>If you put an animal cell in a hypertonic solution means that concentration of the solutes is greater outside the cell, in the solution, than in the cell. Consequently,</span> the water concentration of the cell's cytoplasm is higher than that of the hypertonic solution. Since the aim is to balance water concentration on the inside and outside of the cell, the water will exit the cell. The cell will lose water and, consequently, will shrink in size.

5 0
4 years ago
During dehydration synthesis is 42 water molecules were made how many monosaccharides were joined together to make the complex c
netineya [11]

Answer:

43 monosaccharides will be joined together to make the complex carbohydrate.

Explanation:

The complex carbohydrates are synthesized by the joining of monosaccharide residues by glycosidic linkages.One glycosidic linkage joins two monosaccharide residues by the elimination of one molecule of water.

  In other words it can be said that elimination of one water molecule joins two monosaccharides.By the same way elimination of 42 molecules of water will result in the joining of 43 monosaccaride residues.

3 0
3 years ago
Read 2 more answers
What can a scientist do during an experiment so that others can repeat the experiment exactly the same way?
Zolol [24]
The answer is
c. he should write down data clear, step-by-step instructions as he goes along
6 0
3 years ago
Which statement best describes why liquid water exists on earth?
klemol [59]

Answer:

Honestly I wouls say C.

Explanation:

8 0
4 years ago
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