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BJU Science 7 Chapter 16

Total questions: 36

Worksheet time: 20mins

Name
Class
Date
1.

Which of the following is part of the body's nonspecific defenses?

a)

an antibody

b)

a B cell

c)

a fever

d)

a lymphocyte

2.

Which of the following is NOT an inflammatory response?

a)

tender, warm, and red skin surrounding a simple scrape

b)

irritated, red, and swollen gums resulting from gingivitus

c)

antibodies and memory cells attacking whooping cough bacteria in the body

d)

extra plasma and white blood cells being brought to the site of a lung infection

3.

Macrophages know which substances are foreign and need to be attacked by the _________ on the substances' cell membranes.

a)

antibodies

b)

antigens

c)

B cells

d)

T cells

4.

Antibodies are produces by ________.

a)

antigens

b)

B cells

c)

T cells

d)

macrophages

5.

A vaccine produces ________ immunity.

a)

active

b)

memory

c)

passive

d)

resistance

6.

Signals from your brain or spinal cord to muscles and other parts of your body are carried by _________.

a)

cerebral neurons

b)

interneurons

c)

motor neurons

d)

sensory neurons

7.

What is the small gap between the axon and dendrite of two nearby neurons?

a)

a cell body

b)

impulse

c)

interneurons

d)

synapse

8.

Which is the correct pathway of a reflex arch?

a)

motor neuron, interneuron, sensory neuron, response

b)

motor neuron, interneurons, brain, response

c)

sensory neuron, response, interneuron, motor neuron

d)

sensory neuron, interneurons, motor neuron, response

9.

Which structure of the eye bends light and focuses an upside-down image?

a)

cornea

b)

lens

c)

iris

d)

reina

10.

An infection in your semicircular canals would most likely affect your ________.

a)

hearing

b)

sight

c)

balance

d)

taste

11.

Sound waves vibrate your _______, a membrane found at the end of your ear canal.

a)

anvil

b)

cochlea

c)

eardrum

d)

hammer

12.

All of the following are true about taste buds EXCEPT that

a)

they are clusters of cells

b)

they are the only structures responsible for our sense of taste

c)

they can sense at least five basic tastes

d)

they can taste only dissolved substances

13.

Skin an mucus production are examples of nonspecific defenses against pathogens.

a)

TRUE

b)

FALSE

14.

A fever of 102*F is an example of an inflammatory response

a)

TRUE

b)

FALSE

15.

Active immunity typically lasts longer than passive immunity

a)

TRUE

b)

FALSE

16.

Dendrites are usually longer than an axon

a)

TRUE

b)

FALSE

17.

Because of its outer color, the cerebrum is often called gray matter

a)

TRUE

b)

FALSE

18.

A reflex is a learned reaction to a painful stimulus

a)

TRUE

b)

FALSE

19.

Protections should be put in place to prevent concussions in contact sports.

a)

TRUE

b)

FALSE

20.

A sensory receptor in the skin is usually sensitive to many different stimuli.

a)

TRUE

b)

FALSE

21.

is the largest part of the brain

a)

brain stem

b)

cerebellum

c)

cerebrum

d)

spinal cord

22.

relays impulses between the brain and the rest of the body

a)

brain stem

b)

cerebellum

c)

cerebrum

d)

spinal cord

23.

functions in involuntary motor control

a)

brain stem

b)

cerebellum

c)

cerebrum

d)

spinal cord

24.

is responsible for conscious activities

a)

brain stem

b)

cerebellum

c)

cerebrum

d)

spinal cord

25.

helps control breathing, heartbeat, and blood pressure

a)

brain stem

b)

cerebellum

c)

cerebrum

d)

spinal cord

26.

is protected by the vertebral column

a)

brain stem

b)

cerebellum

c)

cerebrum

d)

spinal cord

27.

Proteins that react to specific antigens found on a pathogen are celled __________.

a)

antibiotics

b)

antibodies

c)

T Cells

d)

B Cells

28.

Memory T cells and B cells give your body _______ immunity.

a)

active

b)

passive

29.

The snail-shaped structure within the ear that initiates the nerve impulse from the ear to the brain is the _______.

a)

anvil

b)

outer ear

c)

ear canal

d)

cochlea

30.

Give the name AND the letter of the structure that carries impulses away from the neuron's cell body.

a)

A; Synapse

b)

B; Cell body

c)

C; Dendrite

d)

D; Axon

31.

Give the name AND letter of the structure that contain the nucleus

a)

A; Synapse

b)

B; Cell Body

c)

C; Dendrite

d)

D; Axon

32.

How does a nerve impulse cross structure A? (this is short answer on your test)

a)

the neuron carrying the impulse releases chemicals that bridge the synapse

b)

the axon carrying the impulse releases chemical that bridge the dendrite

c)

the dendrite carrying the impulse releases chemicals that bridge the cell body

d)

nerve impulses do not travel across the synapse

33.

Identify Structure 4

a)

Optic Nerve

b)

Retina

c)

Cornea

d)

Iris

34.

Identify Structure 2

a)

Optic Nerve

b)

Retina

c)

Cornea

d)

Iris

35.

Give the name AND the number of the structure that contains receptors that are sensitive to light.

a)

Optic Nerve; 7

b)

Retina; 6

c)

Cornea; 2

d)

Iris; 4

36.

Give the name AND the number of the structure that carries nerve impulses from the receptors of the eye to the brain.

a)

Optic Nerve; 7

b)

Retina; 6

c)

Cornea; 2

d)

Iris; 4