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Matter Cycling and Photosynthesis OSE

Total questions: 36

Worksheet time: 20mins

Name
Class
Date
1.

Nutrients in food that the body uses to build cell membranes, nerve tissue (including the brain), and hormones. The body also uses this as fuel.

a)

fat

b)

carbohydrates

c)

proteins

d)

food molecules

2.

A molecule made up of amino acids.

a)

fat

b)

carbohydrates

c)

proteins

d)

food molecules

3.

Food consisting of or containing a lot of sugars, starch, cellulose, or similar substances that can be broken down to release energy in the human body, and make up one of the main nutritional food groups.

a)

fat

b)

carbohydrates

c)

proteins

d)

food molecules

4.

a group of atoms bonded together that represent the smallest unit of a chemical compound

a)

fat

b)

carbohydrates

c)

proteins

d)

food molecules

5.

Anything that has mass and takes up space.

a)

matter

b)

synthetic

c)

protein

d)

energy

6.

A pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange between the internal air spaces of the leaf and the atmosphere.

a)

stomata

b)

hydroponics

c)

energy

d)

relative humidity

7.

The growth of plants without nutrients from soil

a)

hydroponics

b)

cellular respiration

c)

energy

d)

mitochondria

8.

the amount of water vapor in the air

a)

relative humidity

b)

chloroplasts

c)

photosynthesis

d)

cellular respiration

9.

A chemical process in which oxygen is used to make energy from carbohydrates (sugars).

a)

cellular respiration

b)

photosynthesis

c)

mitochondria

d)

transpiration

10.

the evaporation of water from a plant's leaves, stem, or flowers.

a)

transpiration

b)

cellular respiration

c)

relative humidity

d)

stomata

11.

made by chemical synthesis, especially to imitate a natural product.

a)

synthetic

b)

natural

c)

glucose

d)

energy

12.

A unit of energy equivalent to the heat energy needed to raise the temperature of

1 gram of water by 1 °C

a)

calories

b)

food molecule

c)

synthetic

d)

cellular respiration

13.

a green organelle, present in plant cells, where photosynthesis takes place

a)

chloroplasts

b)

mitochondria

c)

glucose

d)

producer

14.

the main type of sugar in the blood and is the major source of energy for the body's cells.

a)

glucose

b)

food molecule

c)

energy

d)

protein

15.

organisms that break down dead or decaying organisms

a)

decomposer

b)

producer

c)

consumer

d)

glucose

16.

an organism that makes its own food

a)

producer

b)

consumer

c)

decomposer

d)

photosynthesis

17.

the process of making glucose from sunlight and carbon dioxide

a)

photosynthesis

b)

mitochondria

c)

cellular respiration

d)

mitochondria

18.

the power derived from chemical resources

a)

energy

b)

carbohydrates

c)

fats

d)

transpiration

19.

an organelle that makes most of the energy for the cell

a)

mitochondria

b)

chloroplast

c)

stomata

d)

protein

20.

a set of things working together as parts of an interconnecting network.

a)

system

b)

inputs

c)

outputs

d)

energy

21.

what is put into a system

a)

system

b)

inputs

c)

outputs

d)

energy

22.

what comes out of a system

a)

system

b)

inputs

c)

outputs

d)

energy

23.

coming from nature

a)

natural

b)

synthetic

c)

consumer

d)

decomposer

24.

organisms that eat other organisms to gain energy

a)

consumers

b)

decomposers

c)

producers

d)

natural

25.

​In plants, leaves are the sight of __________________. 

For this process, the plant needs to bring in and release gasses through the _________________. ​

a)

Cellular Respiration, Stomata

b)

Cellular Respiration, Xylem

c)

Photosynthesis, stomata

d)

Photosynthesis, Xylem

26.
The class decided to have a terrarium.  The teacher says it is important to include both plants and animals.  Why is it necessary to include both plants and animals?
a)
plants provide food for the animals and animals provide water for the plants
b)
plants provide water for the animals and animals provide food for the plants
c)
plants provide carbon dioxide for the animals and animals provide oxygen for the plants
d)
plants provide oxygen for animals and the animals provide carbon dioxide for the plants
27.

If the plant population decreased, the amount of carbon in the atmosphere would _________.

a)

Stay the same

b)

Increase

c)

Decrease

28.

What effect does deforestation have on the carbon cycle?

a)

Decreases carbon dioxide

b)

Increases oxygen

c)

Increases carbon dioxide

d)

decreases oxygen

29.

What statement best describes the roles of photosynthesis & respiration in the carbon cycle?

a)

Respiration & photosynthesis both add carbon to the atmosphere.

b)

Respiration & photosynthesis both remove carbon from the atmosphere.

c)

Respiration adds carbon to the atmosphere while photosynthesis removes carbon from the atmosphere.

d)

Respiration removes carbon from the atmosphere while photosynthesis adds carbon to the atmosphere.

30.

The _____________ is an organelle inside a plant cell and is the actual site that photosynthesis takes place.

a)

Chlorophyll

b)

Chloroplast

c)

Xylem

d)

Phloem

31.

This substance in the leaf is responsible for absorbing the sun's energy and also reflects green light waves.

a)

Cell wall

b)

Chloroplast

c)

Chlorophyll

d)

Nucleus

32.

Which of the following is not a PRODUCT of photosynthesis?

a)

Carbon dioxide

b)

Glucose

c)

Oxygen

33.
Which is the correct formula for photosynthesis?
a)

CO2 + H2O --(in sunlight)--> C6H12O6 + O2

b)
sunlight + CO2 + H2O --> C6H12O6 + O2
c)
C6H12O6 + O2 --> (in sunlight) CO2 + H2O
d)
CO2 + H2O --> C6H12O6 + O2 + sunlight
34.

What are STOMATA?

a)

tiny mouths

b)

little holes on leaf surface

c)

tiny root hairs

d)

another word for chloroplasts

35.

A chemical process in which oxygen is used to make energy from carbohydrates (sugars).

a)

cellular respiration

b)

photosynthesis

c)

mitochondria

d)

transpiration

36.

an organelle that makes most of the energy for the cell

a)

mitochondria

b)

chloroplast

c)

stomata

d)

protein

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