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7 Blue Science Year Review: Part #2

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

A change in an organism's surroundings that causes it to react is called...

a)

stimulus

b)

response

2.

All living organisms are made up of ____.

a)

organs

b)

cells

3.

The powerhouse of the cell, energy is created here.

a)

mitochondria

b)

lysosomes

4.

The organelle that controls what enters and exits the cell.

a)

cell membrane

b)

nucleus

5.

What two substances are brought to cells through the blood.

a)

Oxygen and nutrients

b)

Oxygen and carbon dioxide

6.

Cells need Oxygen and this molecule to make ATP (energy.)

a)

Sugar/glucose

b)

Carbon dioxide

7.

What part of the digestive system does food remain the longest?

a)

Large intestines

b)

stomach

8.

What system does the muscular system work in conjunction with to allow our body to move?

a)

Circulatory

b)

Skeletal

9.

How does the muscular system work with the nervous system?

a)

It receives messages from motor neurons to move muscles.

b)

It slows down the nerves.

10.

The three types of muscle tissue

a)

skeletal, cardiac, rough

b)

skeletal, cardiac, smooth

11.

The heart, blood vessels and blood make up this system.

a)

Respiratory

b)

Circulatory

12.

This gas is brought back to our lungs for us to exhale because it is a toxin.

a)

Carbon dioxide

b)

Hydrogen

13.

The name for a set of alleles: One dominant and One recessive.

a)

Homozygous

b)

Heterozygous

14.

If the gene that shows from a punnett square is 2 lower case "letters" the ____________ trait is expressed.

a)

Dominant

b)

recessive

15.

Human cells have 2 sets of chromosomes adding up to ____ chromosomes, in a healthy cell.

a)

46

b)

22