Question 1

Which of the following does not indicate a well-designed study?

Accepted Answer

A) a control group 
B) variables were controlled 
C) bias 
D) follow-up studies 
A) a control group 
B) variables were controlled 
C) bias 
D) follow-up studies

Question 2

Which of the following is most likely to be responsible if, when your blood sugar level rises, the level of sugar goes back down?

Accepted Answer

A) the use of the sugar for energy by your cells 
B) a homeostatic mechanism based on negative feedback 
C) type II diabetes 
D) a homeostatic mechanism based on positive feedback 
A) the use of the sugar for energy by your cells 
B) a homeostatic mechanism based on negative feedback 
C) type II diabetes 
D) a homeostatic mechanism based on positive feedback

Question 3

If the epithelium that lines the air sacs of your lungs were to gain a layer of cells, which of the following would likely occur?

Accepted Answer

A) Oxygen will enter the lungs more quickly. 
B) Oxygen will enter the lungs more slowly. 
C) Secretion of mucus will increase. 
D) Oxygen will enter at the same rate, because it is only the shape of the cells that matter. 
A) Oxygen will enter the lungs more quickly. 
B) Oxygen will enter the lungs more slowly. 
C) Secretion of mucus will increase. 
D) Oxygen will enter at the same rate, because it is only the shape of the cells that matter.

Question 4

Which of the following statements about the cells of the mucous membrane lining your air tubes is false?

Accepted Answer

A) They manufacture secretory products. 
B) They are stratified squamous epithelial cells. 
C) They are cuboidal or columnar in shape. 
D) They carry cilia that sweep mucus up and out of the respiratory system. 
A) They manufacture secretory products. 
B) They are stratified squamous epithelial cells. 
C) They are cuboidal or columnar in shape. 
D) They carry cilia that sweep mucus up and out of the respiratory system.

Question 5

Which of the following statements regarding skeletal muscle is true?

Accepted Answer

A) Skeletal muscle is attached to bones by tendons. 
B) Skeletal muscle cells do not contain nuclei. 
C) Skeletal muscle is largely responsible for involuntary body motions. 
D) Skeletal muscle coordinates movement of nutrients and oxygen throughout the body. 
A) Skeletal muscle is attached to bones by tendons. 
B) Skeletal muscle cells do not contain nuclei. 
C) Skeletal muscle is largely responsible for involuntary body motions. 
D) Skeletal muscle coordinates movement of nutrients and oxygen throughout the body.

Question 6

Homeostasis

Accepted Answer

A) is the maintenance of a relatively constant internal state. 
B) results from hormone imbalance. 
C) occurs when the external environment changes to match the internal environment 
D) is the way the internal environment influences the external environment. 
A) is the maintenance of a relatively constant internal state. 
B) results from hormone imbalance. 
C) occurs when the external environment changes to match the internal environment 
D) is the way the internal environment influences the external environment.

Question 7

A leiomyoma is a benign tumor that affects smooth muscle. A large tumor of this type might be predicted to

Accepted Answer

A) impair a patient's ability to walk. 
B) result in heart problems. 
C) cause uterine pain in female patients. 
D) do all of the above. 
A) impair a patient's ability to walk. 
B) result in heart problems. 
C) cause uterine pain in female patients. 
D) do all of the above.

Question 8

You are looking at a tissue under a microscope. You see mostly densely packed fibers with some cells scattered throughout. You would predict that the function of this tissue is to

Accepted Answer

A) attach bones to muscles or other bones. 
B) connect epithelia to underlying tissues. 
C) conduct electrical impulses. 
D) make voluntary movements of the body. 
A) attach bones to muscles or other bones. 
B) connect epithelia to underlying tissues. 
C) conduct electrical impulses. 
D) make voluntary movements of the body.

Question 9

Use the figure below to answer the questions that follow.
  
-Which type of epithelial tissue shown is a stratified tissue?

Accepted Answer

A) tissue A 
B) tissue B 
C) tissue C 
D) tissue D 
A) tissue A 
B) tissue B 
C) tissue C 
D) tissue D

Question 10

Which of the following is formed from a matrix of collagen fibers embedded in a hard mineral substance?

Accepted Answer

A) cartilage 
B) bone 
C) adipose tissue 
D) fibrous connective tissue 
A) cartilage 
B) bone 
C) adipose tissue 
D) fibrous connective tissue

Question 11

The human wrist is very agile, but because of this agility it is also very prone to injuries involving the tissue connecting the wrist bones. This statement illustrates

Accepted Answer

A) that animal structures are not perfect. 
B) that connective tissue can be damaged. 
C) that muscle tissue can be damaged. 
D) both A and B 
A) that animal structures are not perfect. 
B) that connective tissue can be damaged. 
C) that muscle tissue can be damaged. 
D) both A and B

Question 12

Bioengineering does not involve

Accepted Answer

A) growing cells on a balloon-like scaffold. 
B) transplanting unaltered organs. 
C) seeding a scaffold of connective tissue matrix with stem cells. 
D) using printers to build structures layer by layer. 
A) growing cells on a balloon-like scaffold. 
B) transplanting unaltered organs. 
C) seeding a scaffold of connective tissue matrix with stem cells. 
D) using printers to build structures layer by layer.

Question 13

Epithelial tissues

Accepted Answer

A) cause body movements. 
B) cover both external and internal body surfaces. 
C) sense stimuli. 
D) form a framework that supports the body. 
A) cause body movements. 
B) cover both external and internal body surfaces. 
C) sense stimuli. 
D) form a framework that supports the body.

Question 14

Most homeostasis depends on

Accepted Answer

A) positive feedback control. 
B) negative feedback control. 
C) hormonal regulation. 
D) predictable environmental conditions. 
A) positive feedback control. 
B) negative feedback control. 
C) hormonal regulation. 
D) predictable environmental conditions.

Question 15

Which of the following is closely associated with the digestive, respiratory, and urinary systems?

Accepted Answer

A) the skeletal system 
B) the circulatory system 
C) the reproductive system 
D) the muscular system 
A) the skeletal system 
B) the circulatory system 
C) the reproductive system 
D) the muscular system

Question 16

Materials such as food, minerals, and oxygen are passed to cells through

Accepted Answer

A) water. 
B) interstitial fluid. 
C) matrix fibers. 
D) neurons. 
A) water. 
B) interstitial fluid. 
C) matrix fibers. 
D) neurons.

Question 17

Which of the following is not an example of negative feedback?

Accepted Answer

A) After eating a meal containing high glucose levels, the pancreas secretes more insulin, a hormone that lowers blood glucose levels. 
B) After cutting your finger, the injured tissue releases chemicals that activate platelets in the blood. These activated platelets release chemicals to activate more platelets, leading to the formation of a blood clot. 
C) An elevation in blood pressure causes heart rate to decrease, thereby causing blood pressure to decrease. 
D) The secretion of the hormone TSH stimulates the thyroid gland to secrete thyroxine. Thyroxine, in turn, inhibits the secretion of TSH. 
A) After eating a meal containing high glucose levels, the pancreas secretes more insulin, a hormone that lowers blood glucose levels. 
B) After cutting your finger, the injured tissue releases chemicals that activate platelets in the blood. These activated platelets release chemicals to activate more platelets, leading to the formation of a blood clot. 
C) An elevation in blood pressure causes heart rate to decrease, thereby causing blood pressure to decrease. 
D) The secretion of the hormone TSH stimulates the thyroid gland to secrete thyroxine. Thyroxine, in turn, inhibits the secretion of TSH.

Question 18

Use the figure below to answer the questions that follow.
  
-Which part of the figure above shows an organ?

Accepted Answer

A) part A 
B) part B 
C) part C 
D) part D 
A) part A 
B) part B 
C) part C 
D) part D

Question 19

Connective tissue is different from the other major tissue types in that

Accepted Answer

A) it is made of cells. 
B) the cells are sparsely scattered through a nonliving matrix. 
C) it is not made of cells. 
D) it is found only in humans. 
A) it is made of cells. 
B) the cells are sparsely scattered through a nonliving matrix. 
C) it is not made of cells. 
D) it is found only in humans.

Question 20

Use the figure below to answer the questions that follow.
  
-Which part of the figure above shows a tissue?

Accepted Answer

A) part A 
B) part B 
C) part C 
D) part D 
A) part A 
B) part B 
C) part C 
D) part D

Exam 20: Unifying Concepts of Animal Structure and Function

Which of the following does not indicate a well-designed study?

Which of the following is most likely to be responsible if, when your blood sugar level rises, the level of sugar goes back down?

If the epithelium that lines the air sacs of your lungs were to gain a layer of cells, which of the following would likely occur?

Which of the following statements about the cells of the mucous membrane lining your air tubes is false?

Which of the following statements regarding skeletal muscle is true?

Homeostasis

A leiomyoma is a benign tumor that affects smooth muscle. A large tumor of this type might be predicted to

You are looking at a tissue under a microscope. You see mostly densely packed fibers with some cells scattered throughout. You would predict that the function of this tissue is to

Use the figure below to answer the questions that follow. -Which type of epithelial tissue shown is a stratified tissue?

Which of the following is formed from a matrix of collagen fibers embedded in a hard mineral substance?

The human wrist is very agile, but because of this agility it is also very prone to injuries involving the tissue connecting the wrist bones. This statement illustrates

Bioengineering does not involve

Epithelial tissues

Most homeostasis depends on

Which of the following is closely associated with the digestive, respiratory, and urinary systems?

Materials such as food, minerals, and oxygen are passed to cells through

Which of the following is not an example of negative feedback?

Use the figure below to answer the questions that follow. -Which part of the figure above shows an organ?

Connective tissue is different from the other major tissue types in that

Use the figure below to answer the questions that follow. -Which part of the figure above shows a tissue?

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

Nutrition and Digestion

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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