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JMEMS Unit 3A Ecosystem

Authored by Marcus Shipp

Science

6th - 8th Grade

Used 59+ times

JMEMS Unit 3A Ecosystem
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the process of photosynthesis, sunlight is converted into

Chemical Energy

Mechanical Energy

Nuclear Energy

Kinetic Energy

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A plant can take in carbon dioxide gas (CO2 ) and water (H2O) and convert it into sugar. This process requires an energy input because the sugar that is formed has more energy than the carbon dioxide and water from which it was made.

Which explains how this is possible?

Plants convert light energy from the Sun into the chemical energy necessary to make the sugars.

Plants absorb heat energy from the Sun and soil for the energy necessary to make the sugars.

Plants absorb chemicals through their roots for the energy necessary to make the sugars.

Plants convert mechanical energy into chemical energy to make the sugars.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Elodea is a plant that grows under water. Martina used pieces of Elodea in test tubes of water to conduct an experiment. Her results are shown in the table below.

What question was she most likely trying to answer?

How does light intensity affect the rate of photosynthesis in plant leaves?

How does light intensity affect the rate of cellular respiration in plant leaves?

How does light intensity affect the amount of water produced by plant leaves?

How does light intensity affect the amount of oxygen absorbed by plant leaves?

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The diagram illustrates plants and two different zones of a deep lake.

In the upper part of the photic zone, organisms carry out both photosynthesis and cellular respiration. Deep in the aphotic zone, only cellular respiration occurs.

Which statement is the most likely reason photosynthesis does not occur in the deepest aphotic zone?

Sunlight for photosynthesis does not reach the deepest aphotic zone.

Water pressure limits the survival of animals in the deepest aphotic zone.

Not enough soil is present to support plant growth in the deepest aphotic zone

Not as much dissolved oxygen from the surface reaches the deepest aphotic zone.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The table compares two cellular processes.

Based on the information in the table, which two processes are being compared?

growth and reproduction

osmosis and diffusion

decomposition and fermentation

photosynthesis and respiration

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Monty was learning about life in the ocean. He made a food chain of some of the organisms he was studying.

Which organism can change energy from the Sun into a form that is usable by other organisms?

ALGAE

similar to seaweed

KRILL

small Shrimp

HERRING

Fish

GULL

Bird

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The diagram shows a process that takes place in plant cells.

Which process is best shown by the diagram?

photosynthesis

reproduction

respiration

transport

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