MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Bulimia is an eating disorder characterized by binge eating followed by purging. Bulimics sometimes believe that purging prevents the body from absorbing calories. Many bulimics use laxatives to purge. Laxatives alleviate constipation by preventing the body from absorbing water from the digestive material. Are laxatives effective in preventing calories from being absorbed from food?

a. Yes, because the laxatives prevent water and calories from being absorbed in the stomach.

b. Yes, because laxatives speed up the entire digestive process and cause the person to expel stool very quickly.

c. No, because the large intestine absorbs all the calories.

d. No, because absorption of calories occurs in the small intestine and laxatives prevent water from being absorbed in the large intestine.

Correct Answer: d

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

How are valves in the circulatory system similar to sphincters in the digestive system?

a. Both limit movement of substances through the system.

b. Both absorb excess fluid from the system.

c. Both add strength to the walls of the system.

d. Both actively push substances through the system.

e. Both control an exit to the system.

Correct Answer: a

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

1. Suppose Marina's large intestine quit functioning but the digested material continued moving through her digestive system. Which of the following conditions would most likely be the result?

a. A hernia

b. Constipation

c. An ulcer

d. Appendicitis

e. Diarrhea

2. Explain your answer.

Correct Answers:

1. e

2. Diarrhea occurs when the large intestine fails to reabsorb water from the digested material, resulting in runny stool.

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

A person who receives an organ transplant must take immune-suppressing drugs (drugs that decrease the effectiveness of the immune system) so that their immune system doesn't attack the new "foreign" organ. For a period of time after the operation, the person must modify his/her lifestyle. Which of the following would be necessary directly because of taking these drugs?

a. The person must be re-vaccinated

b. The person needs to double their liquid intake

c. The person needs to be on oxygen

d. The person needs to be on a carefully monitored exercise program

e. The person needs to live in a nearly sterile environment

Correct Answer: e

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Howard is famous for his amazing pancakes. One day, while flipping his pancakes, he burned his finger on the pan and sensed pain. How is the nervous system involved in Howard's sensation of pain?

a. Receptors on the skin release chemicals that cause the pain sensation.

b. The pain is caused because a blister forms on the skin.

c. A nerve impulse travels from the sensory neuron to the brain and causes Howard to feel pain.

d. The motor neuron is stimulated and causes Howard to quickly jerk his hand away

from the hot pan.

Correct Answer: c

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Complex materials in food are changed in to simpler nutrients in a process called

a. digestion

b. excretion

c. nutrition

d. secretion

Correct Answer: a

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Materials for growth of a dog results from which group of life activities?

a. assimilation, sensitivity, excretion, locomotion

b. food getting, digestion, absorption, assimilation

c. locomotion, assimilation, excretion, reproduction

d. reproduction, respiration, excretion, secretion

Correct Answer: B

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Edward Jenner observed that people who had contacted cowpox did not develop smallpox. He inoculated a boy with cowpox and later exposed this boy to smallpox. The boy did not contract smallpox. What hypothesis did Jenner make?

a. If exposed to cowpox, a person would also be immune to smallpox.

b. If exposed to smallpox, a person would also be immune to cowpox.

c. If T-lymphocytes were not yet differentiated, smallpox would still develop.

d. Cowpox and smallpox are the same disease.

Correct Answer: a

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

How would a change in altitude, such as climbing to the top of Mount Timpanogos, affect a personÕs breathing rate?

a. The rate would be decreased because of more carbon dioxide.

b. The rate would be increased because of less atmospheric pressure.

c. The rate would be unchanged because the factors that would cause an increase are balanced by factors causing a decrease.

d. The rate would be increased because of lower blood carbon dioxide levels.

e. The rate would be decreased because of high blood oxygen levels.

Correct Answer: b

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Predict what the effect of glomerular destruction in the kidney because of prolonged high blood pressure would be.

a. Diabetes (higher than normal blood sugar)

b. Arteriosclerosis (collection of calcium in blood vessel walls)

c. Toxemia (collection of toxic substances in the body)

d. Hepatitis (infection of the liver)

e. Asthma (constriction of air passages in the lungs)

Correct Answer: c

MC	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Which structures does food pass through, and in what order, starting with the mouth?

a. 1, 2, 12, 3, 5, 9, 7

b. 1, 12, 3, 4, 9, 6, 7

c. 1, 12, 3, 5, 9, 6, 7

d. 1, 2, 12, 5, 9, 8, 7

e. 1, 12, 3, 11, 9, 8, 7

Correct Answer: c

I	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Comparison of Materials in Blood and Urine
	% in Blood	% in Urine
Water	92.0	96.0
Protein	7.0	0.0
Glucose	0.1	0.0
Sodium	0.33	0.25
Potassium	0.02	0.24
Urea	0.03	2.90

1. In the above table, which substances are in higher concentration in the urine than in the blood?

a. water and protein

b. protein and glucose

c. glucose and sodium

d. sodium and potassium

e. potassium and urea

2. Which percentage might be most affected if you drank a 64 oz. Soda?

a. water

b. protein

c. sodium

d. potassium

e. urea

3. Which of the following best explains the difference in protein concentrations from blood to urine?

a. The body has enough protein, therefore it is excreted as waste.

b. Protein is needed in the body, therefore it is not excreted.

c. The percent of protein in the blood and urine is the same.

d. The body controls the amount of protein and potassium by similar processes.

Correct Answers:

1. e

2. a

3. b

I	Biology	Standard: 03
Objective: 02. Describe the relationship between structure and function of organ systems in plants and animals.
ILO:

Graph the information from this table, then answer the following questions.

Heartbeats (in 15 seconds) for different numbers of sit-ups
Number of Sit-Ups	Heartbeats (in 15 seconds)
	Person #
	1	2	3	4	5
0	22	23	21	22	24
5	26	24	25	31
9	27	26	29	28
15	32	33	33	32
22	37	37	36	38
25	38	39	41	41	40

1. Which hypothesis is best proven by the data?

a.