Question 1

In the process of intracellular digestion, what do you predict will happen if food vacuoles are unable to fuse with lysosomes?

Accepted Answer

A)  Cells will not be able to engulf solid food by pinocytosis. 
B)  Cells will not be able to engulf liquid food by phagocytosis. 
C)  The cells will not be able to utilize their hydrolytic enzymes. 
D)  The food to be digested will not be able to come in contact with hydrolytic enzymes. 
A)  Cells will not be able to engulf solid food by pinocytosis. 
B)  Cells will not be able to engulf liquid food by phagocytosis. 
C)  The cells will not be able to utilize their hydrolytic enzymes. 
D)  The food to be digested will not be able to come in contact with hydrolytic enzymes.

Question 2

Please use the following information to answer the question(s) below.
Mouse mutations can affect an animal's appetite and eating habits. The ob gene codes for a satiety factor, the hormone leptin. The db gene product, the leptin receptor, is required to respond to the satiety factor.
-Leptin is a product of adipose cells. Therefore, a very obese mouse would be expected to have

Accepted Answer

A)  increased gene expression of ob and decreased expression of db. 
B)  increased gene expression of db and decreased expression of ob. 
C)  decreased transcription of both ob and db. 
D)  mutation of ob or db. 
A)  increased gene expression of ob and decreased expression of db. 
B)  increased gene expression of db and decreased expression of ob. 
C)  decreased transcription of both ob and db. 
D)  mutation of ob or db.

Question 3

The hydra is an example of an organism with a simple body plan that uses the same site for both digestion and nutrient distribution. What is the name of that site?

Accepted Answer

A)  gastrovascular cavity 
B)  mouth 
C)  crop 
D)  midgut 
E)  anus 
A)  gastrovascular cavity 
B)  mouth 
C)  crop 
D)  midgut 
E)  anus

Question 4

Bile salts

Accepted Answer

A)  are enzymes. 
B)  are manufactured by the pancreas. 
C)  emulsify fats in the duodenum. 
D)  increase the efficiency of pepsin action. 
E)  are normally an ingredient of gastric juice. 
A)  are enzymes. 
B)  are manufactured by the pancreas. 
C)  emulsify fats in the duodenum. 
D)  increase the efficiency of pepsin action. 
E)  are normally an ingredient of gastric juice.

Question 5

Use the following table showing the contents of a multivitamin supplement and its percentage of recommended daily values (% DV) to answer the following question(s).   Figure 33.1
-In 2011 it was reported that scientists used GPS (Global Positioning Systems) to create a "map" of bats' molar teeth that was similar to a GPS-produced topographic map of a mountain. Why would scientists want to pursue this project?

Accepted Answer

A)  Differences in the features of the molars might provide information about intracellular digestion processes in bats. 
B)  Differences in the features of the molars might provide information about how the relative size of the bats affected their abilities to acquire food. 
C)  Differences in the features of the molars might suggest evolutionary adaptations to diet. 
D)  Differences in the features of the molars might provide information about climate change in the bats' area of origin. 
E)  Differences in the features of the molars might provide information about mating behaviors. 
A)  Differences in the features of the molars might provide information about intracellular digestion processes in bats. 
B)  Differences in the features of the molars might provide information about how the relative size of the bats affected their abilities to acquire food. 
C)  Differences in the features of the molars might suggest evolutionary adaptations to diet. 
D)  Differences in the features of the molars might provide information about climate change in the bats' area of origin. 
E)  Differences in the features of the molars might provide information about mating behaviors.

Question 6

The cells that secrete the acidic components of stomach juices are

Accepted Answer

A)  the chief cells of the stomach. 
B)  the parietal cells of the stomach. 
C)  not needed for the transformation of pepsinogen to pepsin. 
D)  in the lumen of the stomach. 
E)  adding secretions along the esophagus. 
A)  the chief cells of the stomach. 
B)  the parietal cells of the stomach. 
C)  not needed for the transformation of pepsinogen to pepsin. 
D)  in the lumen of the stomach. 
E)  adding secretions along the esophagus.

Question 7

Figure 33.2
-Examine the digestive system structures in the figure above. The most enzymatic hydrolysis of macromolecules occurs at location(s)

Accepted Answer

A)  3 only. 
B)  4 only. 
C)  1 and 4. 
D)  3 and 4. 
E)  1, 3, and 4. 
A)  3 only. 
B)  4 only. 
C)  1 and 4. 
D)  3 and 4. 
E)  1, 3, and 4.

Exam 33: Animal Nutrition

In the process of intracellular digestion, what do you predict will happen if food vacuoles are unable to fuse with lysosomes?

The hydra is an example of an organism with a simple body plan that uses the same site for both digestion and nutrient distribution. What is the name of that site?

Bile salts

The cells that secrete the acidic components of stomach juices are

Figure 33.2 -Examine the digestive system structures in the figure above. The most enzymatic hydrolysis of macromolecules occurs at location(s)

Introduction: Evolution and the Foundations of Biology

The Chemical Context of Life

Carbon and the Molecular Diversity of Life

A Tour of the Cell

Membrane Transport and Cell Signaling

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Development, Stem Cells, and Cancer

Viruses

Genomes and Their Evolution

Descent With Modification

Phylogeny

The Evolution of Populations

The Origin of Species

Broad Patterns of Evolution

Early Life and the Diversification of Prokaryotes

The Origin and Diversification of Eukaryotes

The Colonization of Land by Plants and Fungi

The Rise of Animal Diversity

Plant Structure and Growth

Resource Acquisition, Nutrition, and Transport in Vascular Plants

Reproduction and Domestication of Flowering Plants

Plant Responses to Internal and External Signals

Homeostasis and Endocrine Signaling

Circulation and Gas Exchange

The Immune System

Reproduction and Development

Neurons, Synapses, and Signaling

Nervous and Sensory Systems

Motor Mechanisms and Behavior

Population Ecology and the Distribution of Organisms

Species Interactions

Ecosystems and Energy

Global Ecology and Conservation Biology

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