Unit 1 Review Question Preview (ID: 39413)


Review For Unit 1. TEACHERS: click here for quick copy question ID numbers.

In a laboratory experiment, what is a “Control Group”?
a) The tested variable
b) The variable that you change
c) Things in the experiment that don’t change
d) The baseline

In a laboratory experiment, why is a hypothesis important even if it’s wrong?
a) Because it’s part of the experiment.
b) Because it could lead you in a new direction.
c) Because it tells you the correct answer.
d) Because it’s just good science.

What are the 2 main functions of the Digestive System?
a) Eliminating Waste and Breaking Down Food
b) Absorbing water and eliminating waste
c) Generating energy and carrying nutrients
d) Carrying oxygen and eliminating carbon dioxide

Which organ(s) are responsible for breaking down food?
a) Small Intestine
b) Mouth and Stomach
c) Rectum and Pancreas
d) Esophagus and Liver

Which organ(s) are responsible for absorbing nutrients from food?
a) Small Intestine
b) Mouth and Stomach
c) Rectum and Anus
d) Esophagus and Liver

What type of waste does the digestive system remove (choose the BEST answer)?
a) Solid
b) Liquid
c) Gas
d) None of the above.

When nutrients are absorbed in the digestive system, which system picks them up and carries them around the body?
a) Respiratory
b) Excretory
c) Circulatory
d) Nervous

What are the four main parts of the Circulatory System?
a) Heart, Arteries, Veins, capillaries
b) Lungs, Bronchi, Trachea, Larynx
c) Brain, nerves, spinal cord, neurons
d) Heart, lungs, brain, muscles

What are the main functions of the circulatory system?
a) To bring in oxygen and remove carbon dioxide
b) To absorb nutrients and eliminate waste
c) To control your body’s response to stimuli
d) To carry oxygen and nutrients to your cells and carry carbon dioxide away

What direction do arteries carry blood in relation to your heart? What direction do veins carry blood?
a) Away, towards
b) Away, away
c) Towards, away
d) Towards, towards

Which organs(s) are responsible for eliminating waste in the digestive system?
a) Small Intestine
b) Mouth and Stomach
c) Rectum and Anus
d) Esophagus and Liver

What does blood do while it is in capillaries?
a) Nothing
b) Move into the arteries
c) Exchange materials (oxygen and carbon dioxide)
d) Change directions

Why do the capillaries have such thin walls?
a) So the blood can move faster
b) So that materials can easily pass through their walls
c) So the blood can slow down
d) To keep your blood pressure down

What affect does exercise have on heart rate?
a) Exercise increases heart rate
b) Exercise decreases heart rate
c) Exercise has no effect on heart rate
d) It depends on the exercise

The circulatory system interacts with which other body system in the lungs?
a) Nervous
b) Digestive
c) Excretory
d) Respiratory

What is the main function of the respiratory system?
a) To eliminate solid waste
b) To bring in oxygen and remove carbon dioxide
c) To absorb nutrients from food
d) To control your body’s response to stimuli

What are the main organs of the respiratory system?
a) Lungs
b) Heart
c) Brain
d) Kidneys

What type of waste do the circulatory and respiratory systems eliminate?
a) Solid
b) Liquid
c) Gas
d) All of the above

What is the main function of the Nervous System?
a) To eliminate solid waste
b) To bring in oxygen and remove carbon dioxide
c) To absorb nutrients from food
d) To control your body’s response to stimuli

Why does your body react badly to smells you associate with negative memories?
a) To remind you of unpleasant things
b) To protect you from harm
c) To give you nightmares
d) To keep you from getting bored

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