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Ahat [919]
3 years ago
13

How many pairs of ribs articulate directly with the sternum? 12 5 8 7?

Biology
1 answer:
lukranit [14]3 years ago
3 0
I'm pretty sure it is 7.<span />
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For a couple of decades, biologists knew the nucleus contained DNA and proteins. The prevailing opinion was that the genetic mat
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Answer:

A) Proteins have a greater variety of three-dimensional forms than does DNA.

Explanation:

Proteins have a more complex nature as compared to DNA. Proteins structural organization is also very different.  The three dimensional structure  determine the function of protein based on the amino acid sequence. Proteins are the end products of the genetic information which perform the function and have greater variety

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Why are decomposers important in the carbon and nitrogen cycle?
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Help break down dead plants and organisms. Release carbon dioxide through respiration. Nitrogen being returned to the soil as ammonia.
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The ATP yield for a molecule depends on where it enters glycolysis or the citric acid cycle. The yield can be compared to the ne
Andru [333]

Answer:

a) The net ATP yield from fructose 1,6‑bisphosphate is 32 ATP

b) The net ATP yield from galactose is 30 ATP

c) The net ATP yield from dihydroxyacetone phosphate is 16 ATP

d) The net ATP yield from pyruvate is 12.5 ATP

e) The net ATP yield from lactate is 14 ATP

f) The net ATP yield from phosphoenolpyruvate is 13.5 ATP

Explanation:

a) In this case, 2 ATP molecules are not used for the phosphorylation of glucose for the production of fructose bisphosphate 1.6, thus, the net ATP yield is 32 ATP.

b) Galactose is converted to glucose-1-phosphate through reactions that lead to phosphorylation. Glucose-1-phosphate is transformed into glucose-6-phosphate by the enzyme phosphoglucomutase. Later it is used in glycolysis, thus, the net ATP yield is 30 ATP.

c) The fructose 1,6 bisphosphate is decomposed in glyceraldehyde-3-phosphate and dihydroxyacetone phosphate. Dihydroxyacetone phosphate is isomerized to glyceraldehyde -3-phosphate. ATP performance is (2.5+2.5+11) = 16 ATP

d) Pyruvate is decarboxylated oxidatively to produce acetyl-CoA. ATP yields are:

Glycolysis = 0

Oxidative decarboxylation = 2.5 ATP

TCA cycle = 10 ATP

The net yield is 2.5 + 10 = 12.5 ATP

e) Lactate is oxidized to pyruvate by the enzyme lactate dehydrogenase with a reduction of NAD. Pyruvate is brought into the mitochondria, where it is decarboxylated oxidatively to produce acetyl-CoA. If 1.5 ATP is assumed for cytosolic NADH, therefore 1.5 is produced. So, the net yield is: 12.5 + 1.5 = 14

f) Phosphoenolpyruvate is converted to pyruvate by ATP production through phosphorylation. ATP yield is as follows:

Glycolysis = 1

Oxidative decarboxylation = 2.5 ATP

TCA cycle = 10 ATP

The net yield is 1 + 2.5 + 10 = 13.5 ATP

6 0
3 years ago
Which type of organic molecule is made up of simple sugars that form long chains?
LiRa [457]

Answer:

Carbohydrates

Simple sugars are known as monosaccharides. Carbohydrates also include long chains of connected sugar molecules. These long chains often consist of hundreds or thousands of monosaccharides bonded together to form polysaccharides.

Explanation:

Carbohydrates

Simple sugars are known as monosaccharides. Carbohydrates also include long chains of connected sugar molecules. These long chains often consist of hundreds or thousands of monosaccharides bonded together to form polysaccharides.

4 0
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What is the function of the hormone progesterone
iragen [17]

Answer:

Progesterone. Progesterone, hormone secreted by the female reproductive system that functions mainly to regulate the condition of the inner lining (endometrium) of the uterus. Progesterone is produced by the ovaries, placenta, and adrenal glands.

Explanation:

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