Science chapter test

Question 1

What is the formula for photosynthesis:

Answer 1

Carbon dioxide + water+ light energy +sugar + oxygen

Question 2

What is the formula for respiration:

Answer 2

sugar+ oxygen+carbon dioxide+water + energy

Question 3

What is an element:

Answer 3

pure substance that can not be broken down into a simpler substance

Question 4

Compare and contrast passive and active transport:

Answer 4

they both use materials that pass through the cell membrane passive doesn’t use cellular energy

Question 5

Compare and contrast autotrophs and heterotrophs:

Answer 5

they both use the source of energy differently. Autotrophs is a self feeder hetero goes out to get its own food

Question 6

Page 84 if you look at the arrow and the arrow is pointing inward, which type of transport is it?

Answer 6

active

Question 7

The substances are moving above the cell in what type of area?

Answer 7

High concentration

Question 8

Name the process that produces water?

Answer 8

Respiration

Question 9

Look at the diagram which process uses water?

Answer 9

Respiration

Question 10

Which process needs energy?

Answer 10

Photosynthesis

Question 11

True or false During cytokinesis the cytoplasm of the cell divides

Answer 11

true

Question 12

True or false one product of respiration is carbon dioxide

Answer 12

true

Question 13

True or false an element can not be broken down into a simpler substance

Answer 13

True

Question 14

True or false animals get energy directly from the sun

Answer 14

false

Question 15

True or false passive transport uses energy from the cell to move substances through the cell membrane

Answer 15

false

Question 16

Most of the energy that is released during respiration are produced in the __________

Answer 16

Mitochondria

Question 17

Amino acids are small compounds that make up bigger compounds called

Answer 17

proteins

Question 18

During photosynthesis plants produce sugar and _____

Answer 18

oxygen

Question 19

________ is the diffusion of water through the cell membrane

Answer 19

Osmosis

Question 20

The regular sequences of growth and division of cells and what they undergo is ______

Answer 20

The cell cycle

Question 21

In the dna model adenine only pairs with ___

Answer 21

thymine

Question 22

What happens during mitosis?

Answer 22

Two cells are created in the nucleus

Question 23

Dna and rna are both examples of

Answer 23

nucleic acids

Question 24

Which organic compounds include sugar and stanches

Answer 24

Carbs

Question 25

During the process of fermentation cells release ____ from sugar

Answer 25

Energy

Question 26

The first stage of respiration takes place in the ______

Answer 26

Cytoplasm

Question 27

In the second stage of photosynthesis plants cells make _____

Answer 27

sugar

Question 28

Plants use sunlight to make food in the process called

Answer 28

Photosynthesis

Question 29

When water moves out of the cell it ____

Answer 29

Shrinks

Question 30

____ is the movement of molecules from a high area of concentration to a low area of concentration

Answer 30

Diffusion