Question 1

Most animals are

Accepted Answer

A) bulk feeders. 
B) filter feeders. 
C) suspension feeders. 
D) fluid feeders. 
A) bulk feeders. 
B) filter feeders. 
C) suspension feeders. 
D) fluid feeders.

Question 2

What happens to nutrient macromolecules in an animal's digestive tract?

Accepted Answer

A) They are absorbed whole and are then broken down into monomers within cells that ultimately use them. 
B) Proteins and nucleic acids are digested into monomers before absorption; energy-storage macromolecules (starch and fat)are absorbed whole. 
C) The digestive breakdown of macromolecules determines the monomers that are immediately needed and therefore produced. 
D) Nutrient macromolecules are digested into monomers before absorption. 
A) They are absorbed whole and are then broken down into monomers within cells that ultimately use them. 
B) Proteins and nucleic acids are digested into monomers before absorption; energy-storage macromolecules (starch and fat)are absorbed whole. 
C) The digestive breakdown of macromolecules determines the monomers that are immediately needed and therefore produced. 
D) Nutrient macromolecules are digested into monomers before absorption.

Question 3

Which of the following vitamins is fat-soluble and, consequently, can be stored in body fat?

Accepted Answer

A) biotin 
B) pantothenic acid 
C) niacin 
D) K 
A) biotin 
B) pantothenic acid 
C) niacin 
D) K

Question 4

Nutrients absorbed by the intestines move directly to the liver, which

Accepted Answer

A) converts the nutrients into monomers. 
B) converts excess glucose to glycogen. 
C) manages the amount of glucose that is converted to amylase. 
D) converts glucose to alcohol. 
A) converts the nutrients into monomers. 
B) converts excess glucose to glycogen. 
C) manages the amount of glucose that is converted to amylase. 
D) converts glucose to alcohol.

Question 5

After reading the paragraph below, answer the questions that follow.
Malnutrition can cause a variety of health problems, including being underweight, due to unbalanced or insufficient diet. It is estimated that in 2015, approximately 14% of preschool-age children globally will be underweight (WHO and UNICEF Joint Global Nutrition Database, 2011). While this is a high percentage, it is a drop from approximately 25% just 25 years earlier.
Consider the data table below and answer the questions that follow.
  
-Which of the following regions has the greatest total percent decrease in estimated prevalence (%)of underweight preschool children from 1990 to 2015?

Accepted Answer

A) Africa 
B) Asia 
C) Latin America and Caribbean 
D) Oceania 
A) Africa 
B) Asia 
C) Latin America and Caribbean 
D) Oceania

Question 6

Which of the following is widely regarded as a healthy approach to losing weight?

Accepted Answer

A) gastric bypass surgery 
B) regularly engaging in exercise in addition to monitoring food intake 
C) substituting fatty acids for carbohydrates 
D) trimming daily carbohydrates back to less than 80 grams per day 
A) gastric bypass surgery 
B) regularly engaging in exercise in addition to monitoring food intake 
C) substituting fatty acids for carbohydrates 
D) trimming daily carbohydrates back to less than 80 grams per day

Question 7

When the wall of the stomach cannot protect the organ from the effects of digestion, the result is

Accepted Answer

A) heartburn. 
B) peristalsis. 
C) nausea. 
D) a gastric ulcer. 
A) heartburn. 
B) peristalsis. 
C) nausea. 
D) a gastric ulcer.

Question 8

Which of the following is a hormone produced by adipose cells that helps to control appetite?

Accepted Answer

A) insulin 
B) bile 
C) gastrin 
D) leptin 
A) insulin 
B) bile 
C) gastrin 
D) leptin

Question 9

Reabsorption of water is a major function of the

Accepted Answer

A) esophagus. 
B) colon. 
C) rectum. 
D) appendix. 
A) esophagus. 
B) colon. 
C) rectum. 
D) appendix.

Question 10

When taken by pregnant women, ________ decreases the chance of neural tube defects in infants.

Accepted Answer

A) folic acid 
B) vitamin C 
C) vitamin K 
D) calcium 
A) folic acid 
B) vitamin C 
C) vitamin K 
D) calcium

Question 11

Scientists have studied the effects of television watching on the metabolic rate of children and its potential implications for childhood obesity. In a study of 15 obese children and 16 normal weight children, it was found that the metabolic rate of all children significantly decreased while watching television compared to their metabolic rate when they were at normal rest. The drop was greater for obese children, but the difference in drops between the two groups of children was not statistically significant. What is a reasonable conclusion to draw from this study?

Accepted Answer

A) Television watching does not affect childhood obesity. 
B) Television watching is an activity that should be carefully considered when studying factors that may affect adult obesity. 
C) Television watching contributes more to childhood obesity than the overconsumption of sugary foods. 
D) Television watching is an activity that should be carefully considered when studying factors that may affect childhood obesity. 
A) Television watching does not affect childhood obesity. 
B) Television watching is an activity that should be carefully considered when studying factors that may affect adult obesity. 
C) Television watching contributes more to childhood obesity than the overconsumption of sugary foods. 
D) Television watching is an activity that should be carefully considered when studying factors that may affect childhood obesity.

Exam 21: Nutrition and Digestion

Most animals are

What happens to nutrient macromolecules in an animal's digestive tract?

Which of the following vitamins is fat-soluble and, consequently, can be stored in body fat?

Nutrients absorbed by the intestines move directly to the liver, which

Which of the following is widely regarded as a healthy approach to losing weight?

When the wall of the stomach cannot protect the organ from the effects of digestion, the result is

Which of the following is a hormone produced by adipose cells that helps to control appetite?

Reabsorption of water is a major function of the

When taken by pregnant women, ________ decreases the chance of neural tube defects in infants.

Biology: Exploring Life

The Chemical Basis of Life

The Molecules of Cells

A Tour of the Cell

The Working Cell

How Cells Harvest Chemical Energy

Photosynthesis: Using Light to Make Food

The Cellular Basis of Reproduction and Inheritance

Patterns of Inheritance

Molecular Biology of the Gene

How Genes Are Controlled

DNA Technology and Genomics

How Populations Evolve

The Origin of Species

Tracing Evolutionary History

Microbial Life: Prokaryotes and Protists

The Evolution of Plant and Fungal Diversity

The Evolution of Invertebrate Diversity

The Evolution of Vertebrate Diversity

Unifying Concepts of Animal Structure and Function

Gas Exchange

Circulation

the Immune System

Control of Body Temperature and Water Balance

Hormones and the Endocrine System

Reproduction and Embryonic Development

Nervous Systems

the Senses

How Animals Move

Plant Structure, Growth, and Reproduction

Plant Nutrition and Transport

Control Systems in Plants

the Biosphere: an Introduction to Earths Diverse Environments

Behavioral Adaptations to the Environment

Population Ecology

Communities and Ecosystems

Conservation Biology

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