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sattari [20]
3 years ago
10

Which statements describe social behavior? Check all that apply.

Biology
1 answer:
nexus9112 [7]3 years ago
8 0
A and D would be correct
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Some Calvin Cycle enzymes contain disulfide bonds that must be reduced through a mechanism involving thioredoxin in order for th
Ann [662]

Answer:

There is no regulatory protein that oxidizes these Calvin cycle enzymes; oxidation is spontaneous.

Explanation:

Four enzymes of the Calvin cycle are regulated by sunlight. These enzymes are namely Ribulose 5-phosphate kinase, fructose 1,6-bisphosphatase, sedoheptulose 1,7-bisphosphatase, and glyceraldehyde 3-phosphate dehydrogenase.

The inactive form of these enzymes has disulfide bonds between two Cys residues. In the presence of sunlight, the reduced thioredoxin that obtains electrons from PS-I via ferredoxin reduces the disulfide bonds between the Cys residues of these enzymes.

The reduction of the bonds brings about the confirmation changes to make the enzyme active.

At nightfall, these bonds are spontaneously re-oxidized and there is no reduced thioredoxin available to reduce them again. The spontaneous oxidation of the disulfide bonds of these enzymes at nightfall makes them inactive again.

8 0
3 years ago
What characteristics do all organisms in the domain eukarya have in common?
GREYUIT [131]
They don't have nucleus
8 0
3 years ago
A mutation that occurs in a skin cell of a fully grown zebra might prevent the production of a protein needed to make hair black
Setler79 [48]

Answer:

Be outcasted.

Explanation:

It might be outcasted because zebras find other zebras by their stripes. If one doesn't have black stripes the zebras wouldn't be able to identify it. (I think)

3 0
3 years ago
Cytosine guanine thymine and adenine are referred to as phosphates. True or False
Harman [31]

Answer:

False

Explanation:

Cytosine, guanine, thymine, and adenine are collectively referred to as nitrogenous bases. These are not phosphates. The cytosine, guanine, thymine, and adenine are the four different types of nitrogenous bases. These nitrogenous bases are present in the deoxyribonucleotides. Cytosine and thymine are smaller in structure and have single ring structures. These are collectively called pyrimidines. On the other hand, adenine and guanine are the larger nitrogenous bases each with double ring structures. They are collectively called purines

6 0
3 years ago
I need help I am stuck on this problem
Lady bird [3.3K]
Where's the question
6 0
3 years ago
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