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Unit 2 Science Test

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the Definition for the Law of Conservation of Mass?

a)

Too Hard

b)

Mass cannot be created nor Destroyed

c)

Photosynthesis

d)

The number of reactants must be the same number of atoms you end with

2.

What is Respiration?

a)

takes place in the leaves

b)

process of carrying oxygen to cells, getting rid of carbon dioxide, and releasing energy

c)

an organism that obtains nutrients by consuming other organisms

d)

process by which plants, algae, and certain microorganisms transform light energy from the sun into the chemical energy of food.

3.

What is a Heterotroph?

a)

an organism that cannot make its own food by synthesizing organic nutrients from inorganic materials, using energy from sunlight or a chemical source to drive the process.

b)

an organism that can make its own food by synthesizing organic nutrients from inorganic materials, using energy from sunlight or a chemical source to drive the process.

c)

Grass

d)

an organism that obtains nutrients by consuming other organisms.

4.

What can Describe Photosynthesis

a)

chloroplasts contain chlorphyll

b)

It takes place in the leaves

c)

The leaves trap sunlight and turn it into chemical energy

d)

process of carrying oxygen to cells, getting rid of carbon dioxide, and releasing energy.

5.

What is the Formula for Glucose?

a)

C3H7O3

b)

C6H12O6

c)

O2

d)

O6H12C6

6.

What is ATP?

a)

Water

b)

Energy

c)

Oxygen

d)

Carbon Dioxide

7.

What is an Ecosystem?

a)

a nice place

b)

a biological community of interacting organisms and their physical environment

c)

order in which matter and energy in the form of food is transferred from one organism to another.

d)

feeding position in a food web

8.

What is a Trophic Level?

a)

A tropical area

b)

A level energy

c)

Each level of the food web

d)

Third level on the food web

9.

Describe Biomass

a)

The weight of a biography book

b)

Biomass is a scale

c)

The weight of an organisms in space

d)

The total mass of an organisms in a given area or volume

10.

How many levels are in an energy pyramid?

a)

1-2

b)

4-8

c)

4-5

d)

6-8