Diseases — Unit test Answers

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Which shows a correct association between a structure and one of its functions?

A
Pores receive sensory information.
B
Oil regulates temperature.
C
Vitamin D protects against bacteria.
D
Sweat glands remove waste.
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Which type of muscle tissue is both voluntary and striated?

A
smooth
B
cardiac
C
skeletal
D
heart
3

Which blood component makes up 41% of the blood’s volume?

A
plasma
B
red blood cells
C
platelets
D
white blood cells
4

PeristalsisSalivationDigestionSecretion

A
Peristalsis
B
Salivation
C
Digestion
D
Secretion
5

infectiousnoninfectioustoxiccontaminated

A
infectious
B
noninfectious
C
toxic
D
contaminated
6

Sound can be heard when air passes over a respiratory structure that is located between the pharynx and the trachea.Which structure is responsible for the voice?

A
the nose
B
the larynx
C
the lung
D
the alveoli
7

A tapeworm attaches to the wall of its host’s intestine and starts to absorb the host’s nutrients. Eventually this can cause great harm to the host as the host loses many important nutrients.Which type of infectious agent is a tapeworm?

A
a virus
B
a bacterium
C
a fungus
D
a parasite
8

Which is the temporary storage tank for urine?

A
bladder
B
stomach
C
kidney
D
urethra
9

In order from less complex to more complex, which level of organization is directly after tissue?

A
organ
B
organ system
C
organism
D
organelle
10

What is the name of the state you are in ,when you are maintaining a stable internal environment despite changing external conditions ?

A
Homeostasis
B
Temperature
C
Imbalance
D
Resting
11

Veins take blood back to the heart. Which gas would be most abundant in a vein that takes blood from muscle cells in the arm back to the heart?

A
carbon dioxide
B
oxygen
C
nitrogen
D
hydrogen
12

The picture represents a protein in the stomach being broken down into individual amino acids.

Question illustration
A
villi
B
enzymes
C
saliva
D
fat
13

Which disease results in exhaustion, increased thirst, and numbness in hands and feet?

A
AIDS
B
diabetes
C
Parkinson's
D
cancer
14

Skeletal muscle is controlled by the organism.Which best describes what this means in terms of movement?

A
Any muscle attached to the skeleton is voluntary and may be used for movement.
B
Some of the muscle attached to the skeleton is involuntary and may be used for movement.
C
Some of the muscle attached to the skeleton is voluntary and may be used for movement.
D
All of the muscles attached to the skeleton are involuntary and may be used for movement.
15

High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. By changing the amount of water in the blood, blood pressure can change. The excretory system can help to lower blood pressure.Which would most likely occur in the kidney?

A
More water would be transferred from the nephron.
B
Less water would be absorbed into the nephron.
C
The amount of water in the bladder would decrease.
D
The amount of water in the blood would increase.
16

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17

Which product of respiration is considered waste material and leaves the alveoli?

A
oxygen
B
water
C
carbon dioxide
D
carbon monoxide
18

The picture is a cross section of a bone.

Question illustration
A
X-compact; Y-spongy
B
X-spongy; Y-marrow
C
X-spongy; Y-compact
D
X-marrow; Y-spongy
19

Which list shows three components of an organ system in order of least complex to most complex?

A
red blood cell, heart, tissue
B
skeleton, bone, bone cell
C
muscle cell, muscle tissue, stomach
D
lung, lung tissue, circulatory system
20

Which explains how the nervous system is typically involved in keeping the body in homeostasis?

A
It processes the environment and sends out signals.
B
It controls movement and provides structure.
C
It physically breaks down and absorbs food.
D
It puts oxygen in the blood, which is essential for life.

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