Question 1

_______ contain the greatest diversity of chemical bonds that must be broken down during digestion.

Accepted Answer

A)  Structural carbohydrates 
B)  Nonstructural carbohydrates 
C)  Proteins 
D)  Lipids 
A)  Structural carbohydrates 
B)  Nonstructural carbohydrates 
C)  Proteins 
D)  Lipids

Question 2

The inactive forms of digestive enzymes are called

Accepted Answer

A)  endopeptidases. 
B)  inactivases. 
C)  zymogens. 
D)  bile salts. 
A)  endopeptidases. 
B)  inactivases. 
C)  zymogens. 
D)  bile salts.

Question 3

The feeding modes that is most associated with a ruminant is

Accepted Answer

A)  attack of individual prey items. 
B)  suspension feeding. 
C)  association with symbiotic microbes. 
D)  coprophagy 
A)  attack of individual prey items. 
B)  suspension feeding. 
C)  association with symbiotic microbes. 
D)  coprophagy

Question 4

Which substance is a disaccharidase?

Accepted Answer

A)  Amylase 
B)  Lactase 
C)  Sucrose 
D)  Fructase 
A)  Amylase 
B)  Lactase 
C)  Sucrose 
D)  Fructase

Question 5

Which process is not a useful function of microbes in the rumen?

Accepted Answer

A)  Breakdown of cellulose 
B)  Synthesis of B vitamins 
C)  Synthesis of essential amino acids 
D)  Water balance 
A)  Breakdown of cellulose 
B)  Synthesis of B vitamins 
C)  Synthesis of essential amino acids 
D)  Water balance

Question 6

In which animal does intracellular digestion play a major role?

Accepted Answer

A)  Fish 
B)  Molluscs 
C)  Insects 
D)  Crustaceans 
A)  Fish 
B)  Molluscs 
C)  Insects 
D)  Crustaceans

Question 7

Some people have trouble swallowing pills. What might account for this?

Accepted Answer

Such difficulty migh

Question 8

Explain how the chemical structure of the retinol (vitamin A) molecule makes it suitable for inclusion in visual pigments of animals?

Accepted Answer

In plants and algae the molecu

Question 9

A nonessential amino acid is an amino acid that

Accepted Answer

A)  is stored for future use in building proteins. 
B)  can be synthesized by the animal. 
C)  is deaminated and used in other biochemical pathways. 
D)  can be used to synthesize essential amino acids. 
A)  is stored for future use in building proteins. 
B)  can be synthesized by the animal. 
C)  is deaminated and used in other biochemical pathways. 
D)  can be used to synthesize essential amino acids.

Question 10

In a ruminant animal, the stomach chamber that secretes acid and digestive enzymes is called the

Accepted Answer

A)  rumen. 
B)  reticulum. 
C)  abomasum. 
D)  cecum. 
A)  rumen. 
B)  reticulum. 
C)  abomasum. 
D)  cecum.

Question 11

Which vitamin is most closely integrated with calcium metabolism?

Accepted Answer

A)  Vitamin B12 
B)  Vitamin D 
C)  Vitamin E 
D)  Vitamin K 
A)  Vitamin B12 
B)  Vitamin D 
C)  Vitamin E 
D)  Vitamin K

Question 12

Organic chemists and biochemists often classify molecules based on similarities in their chemical composition. For which compound would developing a generalizable "formula" for chemical composition be most difficult?

Accepted Answer

A)  Proteins 
B)  Carbohydrates 
C)  Lipids 
D)  Vitamins 
A)  Proteins 
B)  Carbohydrates 
C)  Lipids 
D)  Vitamins

Question 13

Refer to the figure shown.
  What is the best title for this panel?

Accepted Answer

A)  Death rate is altered by diet 
B)  Diet affects activity level 
C)  Balancing protein and lipid intake 
D)  Food selection affects metabolic rate 
A)  Death rate is altered by diet 
B)  Diet affects activity level 
C)  Balancing protein and lipid intake 
D)  Food selection affects metabolic rate

Question 14

Three polypeptide hormones secreted in the upper midgut are gastric inhibitory polypeptide,

Accepted Answer

A)  gastrin, and secretin. 
B)  cholecystokinin, and secretin. 
C)  gastrin, and cholecystokinin. 
D)  secretin, and acetylcholine. 
A)  gastrin, and secretin. 
B)  cholecystokinin, and secretin. 
C)  gastrin, and cholecystokinin. 
D)  secretin, and acetylcholine.

Question 15

Following a large meal, which hormone(s) is downregulated?

Accepted Answer

A)  Gastrin 
B)  Ghrelin 
C)  Secretin 
D)  Cholecystokinin 
A)  Gastrin 
B)  Ghrelin 
C)  Secretin 
D)  Cholecystokinin

Question 16

Which body component has the greatest mass in a normal, slender adult human?

Accepted Answer

A)  Proteins 
B)  Lipids 
C)  Nucleic acid 
D)  Carbohydrates 
A)  Proteins 
B)  Lipids 
C)  Nucleic acid 
D)  Carbohydrates

Question 17

Why can the nutritional value of a single food item vary across animals and across time?

Accepted Answer

The nutritional value of a single item c

Exam 6: Nutrition, Feeding, and Digestion

_______ contain the greatest diversity of chemical bonds that must be broken down during digestion.

The inactive forms of digestive enzymes are called

The feeding modes that is most associated with a ruminant is

Which substance is a disaccharidase?

Which process is not a useful function of microbes in the rumen?

In which animal does intracellular digestion play a major role?

Some people have trouble swallowing pills. What might account for this?

Explain how the chemical structure of the retinol (vitamin A) molecule makes it suitable for inclusion in visual pigments of animals?

A nonessential amino acid is an amino acid that

In a ruminant animal, the stomach chamber that secretes acid and digestive enzymes is called the

Which vitamin is most closely integrated with calcium metabolism?

Organic chemists and biochemists often classify molecules based on similarities in their chemical composition. For which compound would developing a generalizable "formula" for chemical composition be most difficult?

Refer to the figure shown. What is the best title for this panel?

Three polypeptide hormones secreted in the upper midgut are gastric inhibitory polypeptide,

Following a large meal, which hormone(s) is downregulated?

Which body component has the greatest mass in a normal, slender adult human?

Why can the nutritional value of a single food item vary across animals and across time?

Animals and Environments: Function on the Ecological Stage

Molecules and Cells in Animal Physiology

Genomics, Proteomics, and Related Approaches to Physiology

Physiological Development and Epigenetics

Transport of Solutes and Water

Energy Metabolism

Aerobic and Anaerobic Forms of Metabolism

The Energetics of Aerobic Activity

Thermal Relations

Food, Energy, and Temperature at Work: The Lives of Mammals in Frigid Places

Neurons

Synapses

Sensory Processes

Nervous System Organization and Biological Clocks

Endocrine and Neuroendocrine Physiology

Reproduction

Integrating Systems at Work: Animal Navigation

Control of Movement

Muscle

Movement and Muscle at Work: Plasticity in Response to Use and Disuse

Introduction to Oxygen and Carbon Dioxide in Physiology

External Respiration: the Physiology of Breathing

Transport of Oxygen and Carbon Dioxide in Body Fluids With an Introduction to Acid- Base Physiology

Circulation

Oxygen, Carbon Dioxide, and Internal Transport at Work: Diving by Marine Mammals

Water and Salt Physiology: Introduction and Mechanisms

Kidneys and Excretion With Notes on Nitrogen Excretion

Water, Salts, and Excretion at Work: Mammals of Deserts and Dry Savannas

Water and Salt Physiology of Animals in Their Environments

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