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Homeostasis, Excretory, and Digestive

Total questions: 57

Worksheet time: 31mins

Name
Class
Date
1.

Which of the following is the basic unit of structure and function in living things?

a)

Cells

b)

Tissues

c)

Organs

d)

Organ Systems

2.

Which of the following levels of organization in the body is composed of one or more organs working together?

a)

Organs

b)

Tissues

c)

Organism

d)

Organ System

3.

_______ are a group of similar cells that perform the same function.

a)

Tissues

b)

Organs

c)

Organ Systems

d)

Organism

4.

Which of the following is a structure made up of different types of tissues?

a)

Cells

b)

Organs

c)

Organ System

d)

Organism

5.

Which level of organization in the body is shown in the image?

a)

Organ

b)

Organ System

c)

Cells

d)

Tissues

6.
What describes a lack of water in the blood?
a)
Dehydration
b)
Rehydration
c)
Hydration
d)
Concentrated
7.
What is a disease where sufferers cannot control their blood glucose levels?
a)
Diabetes
b)
Influenza
c)
Cholera
d)
Cystic fibrosis
8.
What is involuntary contractions of voluntary muscles to warm up?
a)
Shivering
b)
Sweating
c)
Vasodilation
d)
Vasoconstriction
9.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
10.

Homeostasis

a)

allows for a wildly fluctuating internal environment

b)

is impossible in vertebrates

c)

is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation

11.
Most bacteria that cause sickness in humans grow best at 98.6oF. Sometimes a fever is the body's response to the bacteria. What is the reason for developing a fever?
a)
To lower the temperature of the body to kill the bacteria
b)
The increase the temperature of the body to kill the bacteria
c)
To allow the bacteria to take over
d)
To make you feel miserable
12.

Which of the following animals has a body temperature that doesn't change depending on the weather outside?

a)
b)
c)
d)
13.
What is the main function of the excretory system?
a)
to collect and remove wastes from the body
b)
to strengthen skeletal muscles
c)
to protect the nervous system
d)
to bring oxygen to body cells
14.
Which organ of the excretory system stores urine until the body is ready to eliminate it?
a)
ureters
b)
urethra
c)
urinary bladder
d)
urea
15.
Tiny filtering structures where urine is produced in the kidneys are called
a)
ureters.
b)
alveoli.
c)
nephrons.
d)
bronchi.
16.
Under normal conditions, which of the following substances is found in urine?
a)
blood cells
b)
protein
c)
glucose
d)
urea
17.
Which excretory organ eliminates water and some chemical wastes in perspiration?
a)
lungs
b)
skin
c)
liver
d)
kidneys
18.
What function do the kidneys perform?
a)
eliminate carbon dioxide
b)
supply oxygen to body cells
c)
remove urea and excess water
d)
play a role in gas exchange
19.
Organs of excretion that maintain homeostasis include the kidneys, lungs, skin, and
a)
bronchus.
b)
diaphragm.
c)
bladder.
d)
liver.
20.
Using the picture, what is the structure of A?
a)
ureter
b)
kidney
c)
urinary bladder
d)
urethra
21.
Using the picture, what is the function of structure C?
a)
Carries urine away from the kidneys
b)
Stores urine
c)
Eliminates urea, excess water, and some other materials
d)
Carries urine away from body and eliminates it
22.
Use the diagram, what is structure B?
a)
urethra
b)
kidney
c)
ureter
d)
urinary bladder
23.
Use the diagram, what is structure C?
a)
urethra
b)
kidney
c)
ureter
d)
urinary bladder
24.
The excretory system rids the body of ______ waste.
a)
solid
b)
liquid
25.
What is not a function of the digestive system?
a)
Create new foods
b)
Absorb water
c)
Process waste
26.
What is an example of chemical breakdown?
a)
Chewing
b)
Saliva
c)
Peristalsis
27.
Which of these is a disorder of the Digestive system?
a)
Allergies
b)
Flu
c)
Ulcer
28.
What begins the process of mechanical breakdown?
a)
the mouth
b)
the esophagus
c)
the pancreas
29.
What begins the process of chemical breakdown?
a)
Liver
b)
Salivary glands
c)
Colon
30.
What pushes food from the mouth to the stomach?
a)
Stomach
b)
Gall bladder
c)
Esophagus
31.
What churns food and breaks it down further using strong acids?
a)
Stomach
b)
Salivary glands
c)
Liver
32.
Where does most digestion occur?
a)
Stomach
b)
Salivary gland
c)
Small intestine
33.
What produces chemicals that break down fats, starches and proteins?
a)
Pulmonary artery
b)
Pancreas
c)
Pituitary gland 
34.
What stores bile?
a)
Colon
b)
Gall Bladder
c)
Small Intestine
35.
What produces the bile used to break down fats?
a)
Liver
b)
Large Intestine
c)
Mouth
36.
What absorbs water and minerals and holds waste?
a)
Large Intestine (Colon)
b)
Small Intestine
c)
Gall Bladder
37.
Which of the following is NOT an example of CHEMICAL digestion?
a)
chewing your food into small pieces 
b)
stomach acid dissolving food
c)
bile breaking down fats in the small intestine
d)
salvia changing starch into sugar in your mouth
38.
If the liver is not functioning properly, what would most likely be the result?
a)
food would not be able to move into the small intestsine
b)
fats would not be digested
c)
water would not be absored
d)
it would not affect digestion
39.
After dinner, you have a bad case of diarrhea. Which organ is most likely not functioning properly?
a)
stomach
b)
small intestine
c)
large intestine
d)
liver
40.
Which of the following is the correct order of the digestive tract?
a)
mouth, esophagus, small intestine, stomach, large intestine, rectum/anus
b)
mouth, stomach, esophagus, small intestine, large intestine, rectum/anus
c)
mouth, esophagus, stomach, small intestine, large intestine, rectum/anus
d)
mouth, esophagus, large intestine, small intestine, rectum/anus
41.
How does food move through your digestive system?
a)
by gravity pulling it down
b)
when we eat more food, it forces the rest down
c)
muscle movements called peristalsis
d)
electromagnetic force
42.
How do digested nutrients get to the body cells?
a)
Nutrients are absorbed through the mouth directly into the body cells
b)
Nutrients are absorbed through the villi in the small intestine into the blood stream
c)
Nutrients are absorbed by the large intestine and changed into vitamins
d)
Nutrients are absorbed directly through the stomach into the body cells
43.
What happens to unused food materials in the digestive system?
a)
They are stored in the rectum and released through the anus
b)
They are recycled back to the stomach to get reprocessed
c)
There are no unused materials, the digestive system absorbs all food nutrients
d)
They are stored in the large intestine until we need them
44.
The digestive system works with other systems to make sure your body functions properly. Which of the following pairings is incorrect?
a)
Digestive-Circulatory: Food nutrients are digested and then moved into the blood stream
b)
Digestive-Muscular: Muscular contractions called peristalsis squeezes food through the digestive tract
c)
Digestive-Nervous-: The brain sends messages instructing organs to release digestive enzymes to break down food
d)
Digestive-Skeletal: The ribcage protects the digestive organs
45.

Which is the esophagus?

a)

A

b)

B

c)

C

d)

D

e)

E

46.

Which parts of the diagram is the small and large intestine?

a)

A~ small intestine

E~ large intestine

b)

D~ small intestine

E~ large intestine

c)

C~ large intestine

B~ small intestine

d)

A~ large intestine

C~ small intestine

e)

E~ small intestine

D~ large intestine

47.

When Ellie chews her food carefully, which of these explains what she is doing as her teeth mash and crush the food into smaller pieces.

a)

She is mixing her saliva with bile.

b)

She is chemically digesting her food.

c)

She is performing peristalsis.

d)

She is mechanically digesting her food.

48.

Yolanda is studying the organs in the human digestive system. She looks at a diagram of the intestines ... which correctly describes the A showing the one around the B smaller one that is longer.

a)

A is the small intestine, b connects the mouth to the stomach.

b)

A is the small intestine, and B absorbs water from digested material.

c)

A is the large intestine, and B absorbs nutrients from digested material.

d)

A is the large intestine, and B produces bile and stores it temporarily.

49.

what is this picture of the digestive showing

a)

Lungs

b)

Stomach

c)

Liver

d)

Heart

50.

Physically breaking the food into smaller pieces using the teeth and tongue.

a)

chemical digestion

b)

mechanical digestion

c)

enzymes

d)

peristalsis

51.

A protein that speeds up chemical reactions in the body.

a)

Villi

b)

enzymes

c)

ureters

d)

nephrons

52.

Small filtering structure found in the kidneys that removes wastes from blood and makes urine.

a)

epiglottis

b)

nephrons

c)

ureters

d)

peristalsis

53.

The part of the digestive system where most of the nutrients are absorbed through villi.

a)

small intestine

b)

large intestine

c)

peristalsis

d)

nephrons

54.

Enzymes breaking down the food into simpler nutrients.

a)

mechanical digestion

b)

chemical digestion

c)

peristalsis

d)

enzymes

55.

A flap of tissue that seals off the windpipe and prevents food from entering.

a)

peristalsis

b)

epiglottis

c)

nephrons

d)

ureters

56.

Muscle contraction that keep food moving alone in one direction through the digestive system.

a)

epiglottis

b)

nephrons

c)

peristalsis

d)

enzymes

57.

Tiny finger-shaped structure that cover the inner surface of the small intestine.

a)

nephrons

b)

enzymes

c)

epiglottis

d)

villi

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