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Unit 2 Human Body Systems Part 1
Test Description: Systems
Instructions: Answer all questions to get your test result.
1) A student is implementing an investigation to see how earthworms respond to light. Which piece of scientific equipment would be most appropriate for containing the earthworms for observation?
A
graduated cylinder
B
petri dish
C
flask
D
beaker
2) Which of the following increases in blood during exercise?
A
red blood cells
B
glucose
C
hemoglobin
D
carbon dioxide levels
3) Riding a bicycle requires additional energy from leg muscles. Which of the following conditions may result from this activity, and which response helps restore the body to its normal condition?
A
Increased salt wastes can be removed by the heart pumping faster.
B
Increased carbon dioxide in the blood can be removed by breathing faster.
C
Decreased oxygen can be replaced by digesting an apple.
D
Increased sugars in the blood stream can be diluted by drinking water.
4) A person develops an elevated body temperature from a bacterial infection. This fever is a response from the body to help fight infection by -
A
increasing the body's heart rate.
B
increasing the amount of water in the body.
C
stopping additional bacteria from entering the body.
D
slowing the growth of the bacterial infection.
5) A basketball player helps maintain stable body temperature during the game by perspiring. The sweat helps cool his body by evaporating. What is this an example of?
A
digestion
B
respiration
C
mitosis
D
homeostasis
6) A student is outside on a very hot day. How does perspiration help maintain a safe body temperature?
A
It causes evaporation and carries away body heat.
B
It causes evaporation and saves body heat.
C
It prevents excess heat by the sun from entering the body.
D
It washes off of his skin.
7) Which of the following scenarios is a logical example of the evolutionary fight or flight response?
A
Someone is punched in the face and hits back.
B
A student witnesses a fight on the school bus.
C
The principal decides that everyone must attend study hall.
D
Parents demand that chores be done completely.
8) Carbohydrates are large, complex molecules that can be broken down into smaller molecules called-
A
energy
B
vitamins
C
fats
D
sugars
9) A student eats a slice of pizza for dinner. What represents a physical change in the pizza?
A
Breaking down of fats in the pizza by bile
B
Teeth tearing off a bite of pizza
C
Chemicals in the stomach digesting proteins
D
Saliva changing the starch in the pizza crust to sugar
10) Which step in the digestive process represents a chemical change in food?
A
Movement of food down the esophagus to the stomach
B
Substances in the mouth and stomach breaking down fats and proteins
C
Storing of swallowed food in the stomach
D
Churning of food, liquids, and digestive juices in the stomach
11) Which of the following includes only chemical changes that occur in the digestive process?
A
Absorption of nutrients by villi in the small intestines
B
Reaction of saliva, stomach acid, bile, and pancreatic juices with food
C
Chewing and swallowing food
D
Recycling of water from dissolved food back into the body
12) The human body has specialized organs called glands which collect and process substances from the blood. The concentrated substances are then secreted as hormones to regulate body processes. These specialized organs are part of which body system?
A
nervous
B
integumentary
C
endocrine
D
circulatory
13) Ovaries produce and secrete hormones in addition to eggs. To what human body systems do ovaries belong?
A
nervous and digestive
B
excretory and muscular
C
integumentary and reproductive
D
endocrine and reproductive
14) What type of cell in human blood is responsible for carrying oxygen throughout the body?
A
red blood cells
B
plasma
C
platelets
D
white blood cells
15) The three major parts of the circulatory system are the heart, the blood vessels, and the blood. The heart is an organ made of specialized cells. Which of these functions can the heart perform that individual heart cells cannot?
A
producing waste
B
using energy
C
pumping blood
D
growing larger
*select an answer for all questions
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