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Alex777 [14]
2 years ago
9

I don’t really know anything about Biology but if you answer could you tell me something about it

Biology
1 answer:
Nadya [2.5K]2 years ago
5 0
Biology is basically the type of science that studies life and living organisms.
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Some regions of a polypeptide may coil or fold back on themselves. This is called _____, and the coils or folds are held in plac
zalisa [80]

Answer:

The options are

A. secondary structure ... hydrogen bonds

B. secondary structure ... peptide bonds

C. tertiary structure ... hydrogen bonds

D. primary structure ... covalent bonds

E. tertiary structure ... covalent bonds

THE CORRECT ANSWER IS A.

A. secondary structure ... hydrogen bonds

Explanation:

The secondary structure of a polypeptide shows the localized regions of its organised structure being upheld by hydrogen bonds among the major groups

-NH and C = O

At the same time, it inhibits the hydrogen bonds of the side chains from influencing the reaction process.

The polypeptide secondary structure shows the dexterity to curl or fold as sustained by the polypeptide chains.

8 0
3 years ago
What part of an angiosperm contains the plant’s sperm?
Thepotemich [5.8K]

Answer: pollen

Explanation: The anthers bear the pollen grains which contains the male gamete(sperm).

3 0
2 years ago
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lesya692 [45]

If you use a punnet sq. and cross the parents you see that all the children should be affected. by this thing represented by black.

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2 years ago
Passive transport needs energy true or false
Nat2105 [25]
Passive transport DOES NOT need energy(ATP), while active transport does.
4 0
2 years ago
Chief cells secrete inactive pepsinogen in order to prevent acid erosion inside of the chief cells. True or False
Vladimir [108]

Answer:

The statement is false.

Explanation:

At the base of the oxyntic gland, in addition to the parietal cells, the chief cells (peptic cells) are located, mainly in the lower half of the gastric glands, these cells have large basophilic zymogen granules, more prominent in the apical region and responsible of the secretion of pepsinogen proteolytic enzymes, a relatively constant fraction of pepsinogen I released by the chief cells is absorbed by the blood instead of passing into the gastric lumen. The stomach acid transforms pepsinogen into pepsin, which breaks down proteins in food during digestion.

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2 years ago
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