11
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11
Acetyl CoA is the beginning of a metabolic pathway that produces most of the NADH and FADH for ATP production. When you starve, which of the following will produce the most Acetyl CoA?
A
Protein, carbohydrates, and lipid metabolism all produce the same amount
B
Free Oxygen radicals
C
Protein metabolism
D
Lipid metabolism
E
Carbohydrate metabolism
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12
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12
Which of the following occurs when oxyhemoglobin reaches the capillaries of heart muscle?
A
Absorbs oxygen from the mitochondria
B
Releases oxygen which leaves the capillary and diffuses into the cell
C
Releases its oxygen which diffuses from the capillary to the nucleus
D
Releases its oxygen which diffuses from the mitochondria to the capillary
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13
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13
The drug, cannabis, which is produced by the marijuana plant, is a byproduct of which reaction?
A
Dark reaction
B
Light reaction
C
Oxidative phosphorylation of plants
D
Glycolysis in plants
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14
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14
All of the following are true about bile EXCEPT:
A
It acts as an emulsifying agent for lipids and it is synthesized in the liver
B
It disperses globs of fat in the chyme into microscopic particles
C
It acts as an emulsifying agent on carbohydrates and is synthesized in the gall bladder
D
It exposes the large surface area of lipids to lipase
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15
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15
The carbon-nitrogen bond that connects amino acids together in a protein is referred to as which of the following?
A
Peptide bond
B
Covalent bond
C
Ionic bond
D
Octet bond
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16
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16
Dr. Monroe wants to prevent Priscilla, the chair of biology, from digesting carbohydrates. Which organ should she remove from Priscilla that produces the enzymes needed for carbohydrate digestion?
A
Small intestine
B
Liver
C
Pancreas
D
Large intestine
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QuestionGroup: #17 Lipids
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17
All of the following are true about the liver EXCEPT:
A
It receives all the blood from the intestinal system by way of the portal circulation.
B
It produces iron directly with no need for having a food substrate
C
It stores fats and carbohydrates for energy.
D
It regulates blood glucose levels and synthesis of blood proteins
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QuestionGroup: #18 DNA
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18
This molecule controls the production of enzymes in animal cells.
A
It is DNA, a nucleotide that resides in the nucleus of cells
B
It is RNA, the ancestor to DNA
C
It is a protein
D
It is DNA, a carbohydrate
E
It is DNA, a nucleotide which resides in the cytoplasm of the cell
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QuestionGroup: #19 DNA2
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19
Which of the following represents the proper sequence for the "central dogma"?
A
RNA to Protein to DNA
B
RNA to DNA to Protein
C
DNA to RNA to Protein
D
Protein to RNA to DNA
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QuestionGroup: #20 Gene expression
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Homework
20
How many different kind of amino acids are necessary for mRNA to make proteins in humans?
A
Bogus question since mRNA does not use amino acids to make protein.
B
Bogus question since mRNA does not use amino acids to make protein rather it is the rough endoplasmic reticulum.
C
20
D
10
