Question 1

For which of the following is there no RDA (recommended daily allowance)?

Accepted Answer

A)  calcium 
B)  fluoride 
C)  iodine 
D)  iron 
A)  calcium 
B)  fluoride 
C)  iodine 
D)  iron B

Question 2

Which of these hormones causes elevation of the level of glucose in human blood?

Accepted Answer

A)  Insulin 
B)  Glucagon. 
C)  Glucagon and Epinephrine. 
D)  Insulin and Glucagon. 
E)  All of these Hormones elevate the blood glucose levels. 
A)  Insulin 
B)  Glucagon. 
C)  Glucagon and Epinephrine. 
D)  Insulin and Glucagon. 
E)  All of these Hormones elevate the blood glucose levels. C

Question 3

What happens to the nitrogen from excess protein?

Accepted Answer

A)  It is stored as carbohydrate. 
B)  It is stored as fat. 
C)  It is eliminated through the urea cycle. 
D)  It is exhaled as N2 gas. 
E)  It is stored to make future proteins 
A)  It is stored as carbohydrate. 
B)  It is stored as fat. 
C)  It is eliminated through the urea cycle. 
D)  It is exhaled as N2 gas. 
E)  It is stored to make future proteins C

Question 4

Which of the following is not a characteristic of anabolic pathways?

Accepted Answer

A)  macromolecules are synthesized 
B)  ATP is generally consumed in these pathways 
C)  the pathways are exergonic 
D)  the molecules undergo reduction 
A)  macromolecules are synthesized 
B)  ATP is generally consumed in these pathways 
C)  the pathways are exergonic 
D)  the molecules undergo reduction

Question 5

The American Heart Association advocates that 30% or less of our calories should come from fats, but the typical US diet actually exceeds 40% fat.

Accepted Answer

A) True 
 B)False

Question 6

Low levels of iodide in the diet can lead to an enlarged thyroid.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following produces hormone-releasing factors?

Accepted Answer

A)  hypothalamus 
B)  anterior pituitary 
C)  posterior pituitary 
D)  adrenal cortex 
A)  hypothalamus 
B)  anterior pituitary 
C)  posterior pituitary 
D)  adrenal cortex

Question 8

Insulin exerts its effects through

Accepted Answer

A)  cyclic AMP. 
B)  calcium ions. 
C)  tyrosine kinases. 
D)  direct action on DNA-binding proteins. 
E)  none of these 
A)  cyclic AMP. 
B)  calcium ions. 
C)  tyrosine kinases. 
D)  direct action on DNA-binding proteins. 
E)  none of these

Question 9

Which of the following vitamins is involved in hydroxylation reactions of collagen

Accepted Answer

A)  Vitamin A 
B)  Vitamin C 
C)  Vitamin D 
D)  Vitamin E 
E)  none of these 
A)  Vitamin A 
B)  Vitamin C 
C)  Vitamin D 
D)  Vitamin E 
E)  none of these

Question 10

Trophic hormones act on

Accepted Answer

A)  specific endocrine glands. 
B)  liver cells. 
C)  muscles cells. 
D)  all of the above. 
A)  specific endocrine glands. 
B)  liver cells. 
C)  muscles cells. 
D)  all of the above.

Question 11

Fine tuning of the hormone process is done by such mechanisms as using other hormones to cause the release of the final active hormone.

Accepted Answer

A) True 
 B)False

Question 12

The following are not essential in the human diet.

Accepted Answer

A)  Ethanol. 
B)  Nucleic acids. 
C)  Heme containing compounds. 
D)  Neither ethanol nor heme-containing compounds are required. 
E)  None of these is required in the human diet. 
A)  Ethanol. 
B)  Nucleic acids. 
C)  Heme containing compounds. 
D)  Neither ethanol nor heme-containing compounds are required. 
E)  None of these is required in the human diet.

Question 13

Most hormones accomplish their activity by direct inclusion in the cell, where they carry out their catalytic function.

Accepted Answer

A) True 
 B)False

Question 14

A hormone is defined as a substance which is made in one tissue, but actually acts on a different tissue.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is not a typical structure for a hormone?

Accepted Answer

A)  steroid 
B)  carbohydrate 
C)  amino Acid derivative 
D)  protein or polypeptide 
E)  All of these structures are seen as hormones. 
A)  steroid 
B)  carbohydrate 
C)  amino Acid derivative 
D)  protein or polypeptide 
E)  All of these structures are seen as hormones.

Question 16

​ Which of the following diseases is caused by an excess of growth hormone after the skeleton has stopped growing and characterized by enlarged hands, feet, and facial features?

Accepted Answer

A)  Acromegaly 
B)  Cytomegaly 
C)  Adenomegaly 
D)  Chiromegaly 
A)  Acromegaly 
B)  Cytomegaly 
C)  Adenomegaly 
D)  Chiromegaly

Question 17

Which pathway is central to virtually all living organisms?

Accepted Answer

A)  glycolysis. 
B)  citric acid cycle 
C)  electron transport chain 
D)  photosynthesis 
E)  fatty acid metabolism 
A)  glycolysis. 
B)  citric acid cycle 
C)  electron transport chain 
D)  photosynthesis 
E)  fatty acid metabolism

Question 18

Hormones are

Accepted Answer

A)  transported to their site of action by the lymphatic system. 
B)  intercellular messengers. 
C)  present in large quantities in organisms. 
D)  not well characterized. 
A)  transported to their site of action by the lymphatic system. 
B)  intercellular messengers. 
C)  present in large quantities in organisms. 
D)  not well characterized.

Question 19

Which of the following statements concerning iron deficiency in humans is false ?

Accepted Answer

A)  Iron requires a carrier molecule for absorption and transport. 
B)  Iron can only be absorbed in the iron (III) state. 
C)  Iron often forms insoluble complexes with other food substances. 
D)  Other ions may compete with iron for uptake into the body. 
A)  Iron requires a carrier molecule for absorption and transport. 
B)  Iron can only be absorbed in the iron (III) state. 
C)  Iron often forms insoluble complexes with other food substances. 
D)  Other ions may compete with iron for uptake into the body.

Question 20

Overdoses are possible for which of the following vitamins?

Accepted Answer

A)  vitamins A, D, and E 
B)  vitamins A, C, and E 
C)  vitamins A, B1, and C 
D)  vitamins A, B1, and B6 
A)  vitamins A, D, and E 
B)  vitamins A, C, and E 
C)  vitamins A, B1, and C 
D)  vitamins A, B1, and B6

Exam 24: Integration of Metabolism Cellular Signaling

For which of the following is there no RDA (recommended daily allowance)?

Which of these hormones causes elevation of the level of glucose in human blood?

What happens to the nitrogen from excess protein?

Which of the following is not a characteristic of anabolic pathways?

The American Heart Association advocates that 30% or less of our calories should come from fats, but the typical US diet actually exceeds 40% fat.

Low levels of iodide in the diet can lead to an enlarged thyroid.

Which of the following produces hormone-releasing factors?

Insulin exerts its effects through

Which of the following vitamins is involved in hydroxylation reactions of collagen

Trophic hormones act on

Fine tuning of the hormone process is done by such mechanisms as using other hormones to cause the release of the final active hormone.

The following are not essential in the human diet.

Most hormones accomplish their activity by direct inclusion in the cell, where they carry out their catalytic function.

A hormone is defined as a substance which is made in one tissue, but actually acts on a different tissue.

Which of the following is not a typical structure for a hormone?

​ Which of the following diseases is caused by an excess of growth hormone after the skeleton has stopped growing and characterized by enlarged hands, feet, and facial features?

Which pathway is central to virtually all living organisms?

Hormones are

Which of the following statements concerning iron deficiency in humans is false ?

Overdoses are possible for which of the following vitamins?

Biochemistry and the Organization of Cells

Water the Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins Enzymes

The Behavior of Proteins Enzymes Mechanisms and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids How Structure Conveys Information

Biosynthesis of Nucleic Acids Replication

Transcription of the Genetic Code the Biosynthesis of Rna

Protein Synthesis Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses Cancer and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Filters

Which of the following diseases is caused by an excess of growth hormone after the skeleton has stopped growing and characterized by enlarged hands, feet, and facial features?