WorksheetsMatter and Energy in Ecosystems Test
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
Is a series of chemical reactions that convert light energy , water and carbon dioxide into the food energy molecule glucose , and give off oxygen.
a)
Photosynthesis
b)
Ecosystem
c)
Cellular respiration
d)
Glycolysis
2.
All of the living and non living things in a given area.
a)
Photosynthesis
b)
Ecosystem
c)
Cellular respiration
d)
Glycolysis
3.
Is a series of chemical reactions that convert the energy in food molecules in to usable form of energy called ATP.
a)
Photosynthesis
b)
Ecosystem
c)
Cellular respiration
d)
Glycolysis
4.
Is a process by which glucose , a sugar, is broken down into smaller molecules.
a)
Photosynthesis
b)
Ecosystem
c)
Cellular respiration
d)
Glycolysis
5.
What do plants need for photosynthesis to occur?
a)
Carbon dioxide, water, and light energy
b)
Sugar, oxygen, and light energy
c)
Sugar and oxygen
d)
Carbon dioxide and oxygen
6.
What are the results of photosynthesis?
a)
Carbon dioxide, water, and light energy
b)
Sugar, oxygen, and light energy
c)
Sugar and oxygen
d)
Carbon dioxide and oxygen
7.
Where does photosynthesis take place?
a)
the chloroplast
b)
the cuticle
c)
the stoma
d)
Upper epidermal cells
8.
Why do plants appear green?
a)
Chlorophyll reflects green light.
b)
They use green light for energy.
c)
They absorb all colors of light.
d)
Green light is harmful to plants.
9.
Which part of the cell is also involved in energy creation along with mitochondria?
a)
Nucleus
b)
Cytoplasm
c)
Ribosomes
d)
Chloroplasts
10.
What is the powerhouse of a cell?
a)
Nucleus
b)
Mitochondria
c)
Ribosomes
d)
Chloroplasts
11.
What are the inputs of cellular respiration?
a)
glucose and oxygen
b)
Energy(ATP), water, and carbon dioxide
c)
glucose and water
d)
Energy(ATP), oxygen and carbon dioxide
12.
What are the results of cellular respiration?
a)
glucose and oxygen
b)
Energy(ATP), water, and carbon dioxide
c)
glucose and water
d)
Energy(ATP), oxygen and carbon dioxide
13.
Living thinks that make their own food are called
a)
Producers
b)
Consumers
c)
Detritivores
14.
Do not produce their own energy rich food. Instead, they get the energy they need to survive by consuming other organisms.
a)
Producers
b)
Consumers
c)
Detritivores
15.
Get their energy by eating the remains of other organisms.
a)
Producers
b)
Consumers
c)
Detritivores
16.
What is the main source of energy for most life on Earth?
a)
The Moon
b)
The Sun
c)
The Earth's core
d)
Ocean currents
17.
What is the law of conservation of energy?
a)
Energy can be created and destroyed.
b)
Energy can be created but not destroyed.
c)
Energy cannot be created or destroyed, only transformed.
d)
Energy can only be destroyed but not created.
18.
What is chemosynthesis?
a)
The process of using sunlight to make food
b)
The process of using chemicals to make food
c)
The process of breaking down food into energy
d)
The process of storing energy in plants
19.
Which of the following organisms primarily use chemosynthesis?
a)
Plants in the rainforest
b)
Animals in the desert
c)
Bacteria near hydrothermal vents
d)
Insects in the garden
20.
What do herbivores eat?
a)
plants
b)
animals
c)
rocks
d)
both plants and animals
21.
What do carnivores eat?
a)
plants
b)
animals
c)
rocks
d)
both plants and animals
22.
What do omnivores eat?
a)
plants
b)
animals
c)
rocks
d)
both plants and animals
23.
What is the role of arrows in illustrating a food chain?
a)
Showing the direction of animal migration
b)
Indicating the transfer of energy from one organism to another
c)
Describing the habitat size
d)
Demonstrating the lifespan of organisms
24.
What is a primary difference between a food web and a food chain?
a)
A food web shows a single feeding relationship
b)
A food chain includes only plants
c)
A food web illustrates multiple feeding relationships
d)
A food chain includes only animals
25.
What percentage of energy is typically transferred from one trophic level to the next in a food pyramid?
a)
5%
b)
10%
c)
20%
d)
50%
26.
What is an energy pyramid?
a)
A diagram that shows how energy flows through a food chain
b)
A map that shows the location of animals
c)
A chart that lists different types of plants
d)
A graph that measures the speed of animals
27.
What is evaporation?
a)
The process of a liquid turning into a gas(water vapor)
b)
The process of a solid turning into a liquid
c)
The process of gas(water vapor) turning into a liquid
d)
The process of a gas(water vapor) turning into a solid
28.
What is condensation?
a)
The process of a liquid turning into a gas (water vapor)
b)
The process of a solid turning into a liquid
c)
The process of gas (water vapor) turning into a liquid
d)
The process of a gas(water vapor) turning into a solid
29.
What is precipitation in terms of the water cycle?
a)
The process where water vapor turns into liquid water
b)
The movement of water from plants to the atmosphere
c)
The release of water from clouds in the form of rain, snow, sleet, or hail
d)
The absorption of water by the soil
30.
What is nitrogen fixation?
a)
The process of plants releasing nitrogen into the soil
b)
The process that changes atmospheric nitrogen into nitrogen compounds that are usable by living things.
c)
The absorption of nitrogen gas by animals
d)
The breakdown of nitrogen compounds in the water
31.
How do animals and humans primarily acquire carbon?
a)
Through photosynthesis
b)
By eating plants or other animals
c)
By absorbing carbon dioxide directly from the air
d)
By performing fermentation
32.
What is the role of decomposers in the carbon cycle?
a)
a. They absorb carbon dioxide from the atmosphere.
b)
b. They release carbon dioxide by breaking down dead organisms.
c)
c. They store carbon in their bodies.
d)
d. They convert carbon dioxide into oxygen.
33.
What percentage of Earth’s water is in the oceans?
a)
97 percent
b)
77 percent
c)
87 Percent
d)
3 Percent
34.
What is the percentage of nitrogen in the atmosphere?
a)
21%
b)
78%
c)
1%
d)
5%
35.
What is a nitrogen rich product that farmers use to enrich their fields?
a)
Sand
b)
Manure
c)
Water
d)
Rocks
36.
How do plants contribute to the oxygen cycle?
a)
By absorbing oxygen during photosynthesis
b)
By releasing oxygen during photosynthesis
c)
By absorbing carbon dioxide during respiration
d)
By releasing carbon dioxide during photosynthesis
37.
What is the role of animals in the oxygen cycle?
a)
They absorb oxygen to produce energy and release carbon dioxide
b)
They release oxygen into the atmosphere
c)
They convert oxygen into nitrogen
d)
They do not play any role in the oxygen cycle
38.
What percentage does phytoplankton create oxygen on Earth?
a)
10%
b)
30%
c)
50%
d)
70%
39.
What is the greenhouse effect?
a)
The process by which plants convert sunlight into energy
b)
The trapping of heat in Earth's atmosphere by greenhouse gases
c)
The reflection of sunlight back into space by clouds
d)
The warming of Earth due to volcanic activity
40.
Describe the flow of energy within the ecosystem.
(4 points) One point for writing in complete sentences.
4 lines
100 %
