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drek231 [11]
3 years ago
10

Stretch marks are the result of tears in the integumentary layer that contains fibrous connective tissue, elastin, and collagen.

What is this region of the integumentary system called? (A) subcutaneous layer (B) Langerhan layer (C) epidermis (D) hypodermis (E) dermis
Biology
2 answers:
mrs_skeptik [129]3 years ago
8 0

Answer:

E; Dermis

Explanation:

Skin and its underlying tissue can be affected by excessive pressure. Stretch mark results when the dermis is stretched beyond its limits of elasticity, as the skin stretches to accommodate the excess pressure. Stretch marks usually accompany rapid weight gain during puberty and pregnancy.

erik [133]3 years ago
3 0

Answer:this region of the integumentary system is called the dermis. The correct option is E.

Explanation: The integumentary layer of the skin is made up of two secrions; the epidermis and the dermis. But the section that contains fibrous connective tissue, elastin, and collagen is the dermis.

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Answer:

Explanation:

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The citric acid cycle is a stage of catabolism that oxidizes acetate into carbon dioxide and generates energy. There are eight e
Delicious77 [7]

Answer:

1. isocitrate dehydrogenase,  malate dehydrogenase,  α‑ketoglutarate dehydrogenase

2. α-ketoglutarate dehydrogenase and Isocitrate dehydrogenase

3. Succinyl coenzyme A synthetase

4. α‑ketoglutarate dehydrogenase

5. aconitase

Explanation:

The citric acid cycle is a stage of catabolism in which the oxidation of acetyl-CoA takes place which releases stored energy. it takes place in the matrix of the mitochondria (in eukaryotes) or in cytoplasm (in prokaryotes).

1. All the  dehydrogenase produces NADH in citric acid cycle except succinate dehydrogenase as it inhibit other dehydrogenase enzymes activity. <em>so, Isocitrate dehydrogenase (in second step),  α‑ketoglutarate dehydrogenase (in third step) , and malate dehydrogenase (in eigthth step or final step)  </em>are responsible to produces a coenzyme, NADH.

2.  Isocitrate dehydrogenase (in third step) form one carbon dioxide and one NADH and α-ketoglutarate dehydrogenase (in fourth step) form four-carbon succinyl CoA. hence both the enzymes  produces carbon dioxide in the citric acid cycle.

3. Succinyl coenzyme A synthetase catalyzes the formation of coenzyme-A and succinate.

4. α‑ketoglutarate dehydrogenase have an α‑keto acid substrate which is converted into into a four-carbon succinyl CoA in the fourth step of citric acid cycle.

5. Aconitase catalyzes the isomerization of citrate to isocitrate.

Hence, the correct answer is:

1. isocitrate dehydrogenase,  malate dehydrogenase,  α‑ketoglutarate dehydrogenase

2. α-ketoglutarate dehydrogenase and Isocitrate dehydrogenase

3. Succinyl coenzyme A synthetase

4. α‑ketoglutarate dehydrogenase

5. aconitase

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2 years ago
1. Who was Charles Darwin? What is he known for?
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Answer:

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