Bio Quiz 13

Question 1

HIV disables the immune system by

  None of the listed answers are correct 
  blocking the action of macrophages. 
  destroying helper T cells. 
  All of the listed answers are correct 
  activating production of B cells.

Answer 1

destroying helper T cells.

Question 2

Plasma cells

result from cytotoxic T cells.
produce antibodies.
None of the listed answers are correct
All of the listed answers are correct
are directly stimulated by interleukin-1.
engulf pathogens.

Answer 2

produce antibodies.

Question 3

When a neuron is at the resting potential,

  the inside is positively charged. 
  All of the listed answers are correct 
  the outside is negatively charged. 
  None of the listed answers are correct 
  the inside is negatively charged.

Answer 3

the inside is negatively charged.

Question 4

B cells and cytotoxic T cells are stimulated by interleukin-2, which is released by

  natural killer cells. 
  neutrophils. 
  None of the listed answers are correct 
  macrophages. 
  helper T cells. 
  All of the listed answers are correct

Answer 4

Helper T cells

Question 5

Rheumatoid arthritis is an example of

  an autoimmune disease. 
  an AlDS-related infection. 
  an allergic reaction. 
  a bacterial infection. 
  All of the listed answers are correct 
  None of the listed answers are correct

Answer 5

an autoimmune disease.

Question 6

During digestion, food passes through the mouth, esophagus, stomach, ________, and large intestine.

  All of the listed answers are correct 
  gallbladder 
  lymph nodes 
  lungs 
  pancreas 
  None of the listed answers are correct

Answer 6

None of the listed answers are correct

Question 7

The __________ are involved in excretion.

  pancreas and kidneys 
  liver and pancreas 
  All of the listed answers are correct 
  None of the listed answers are correct 
  kidneys and stomach 
  kidneys and lungs

Answer 7

kidneys and lungs

Question 8

The part of the ear that contains mechanoreceptors is the

eardrum.
cochlea.
None of the listed answers are correct
All of the listed answers are correct
interneuron.
cerebrum.

Answer 8

cochlea

Question 9

Robert Koch

identified complement proteins.
None of the listed answers are correct
treated smallpox patients.
All of the listed answers are correct
perfected vaccination.
established a four-step procedure for identifying pathogens.

Answer 9

established a four-step procedure for identifying pathogens.

Question 10

The ____________ regulates balance, posture, and movement.

  thalamus 
  All of the listed answers are correct 
  None of the listed answers are correct 
  cerebrum 
  hypothalamus 
  cerebellum

Answer 10

cerebellum

Question 11

The primary function of carbohydrates is to

  None of the listed answers are correct 
  aid in digestion. 
  break down molecules. 
  All of the listed answers are correct 
  supply the body with energy. 
  regulate the flow of acid.

Answer 11

supply the body with energy.

Question 12

Flu vaccinations are given each year because

influenza viruses mutate often.
All of the listed answers are correct
macrophages cannot engulf flu viruses.
very few memory cells are produced.
None of the listed answers are correct
influenza is caused by bacteria.

Answer 12

influenza viruses mutate often.

Question 13

The body needs vitamins because they

  None of the listed answers are correct 
  function as enzymes. 
  All of the listed answers are correct 
  supply energy. 
  act as hormones. 
  activate enzymes.

Answer 13

activate enzymes.

Question 14

During an action potential,

  All of the listed answers are correct 
  None of the listed answers are correct 
  sodium ions flow out of a neuron. 
  potassium ions flow into a neuron. 
  there is no movement of ions. 
  sodium ions flow into a neuron.

Answer 14

sodium ions flow into a neuron.

Question 15

Food from the _________ food group should be eaten in the greatest abundance.

  milk, yogurt, and cheese 
  vegetables 
  fats, oils, and sweets 
  None of the listed answers are correct 
  All of the listed answers are correct 
  grains

Answer 15

grains

Question 16

Nutrients in the small intestine enter the bloodstream by passing through

  villi. 
  None of the listed answers are correct 
  glomeruli. 
  gastric pits. 
  All of the listed answers are correct 
  nephrons.

Answer 16

villi

Question 17

HIV can be transmitted by

  vaccination only. 
  shaking hands. 
  sexual contact. 
  mosquito bites. 
  All of the listed answers are correct 
  None of the listed answers are correct

Answer 17

sexual contact.

Question 18

Drug addiction is considered a physiological condition because addictive drugs

  are used in social settings. 
  All of the listed answers are correct 
  must be injected. 
  alter the functioning of neurons. 
  None of the listed answers are correct 
  can be purchased illegally.

Answer 18

alter the functioning of neurons.

Question 19

Nonspecific defenses include

  the T cell response. 
  the inflammatory response. 
  the B cell response. 
  None of the listed answers are correct 
  antibodies. 
  All of the listed answers are correct

Answer 19

the inflammatory response.