Photosynthesis and Energy Flow Review
Authored by GOOD EIREANN
Science
7th Grade
NGSS covered
Used 3+ times
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30 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of these best describes what happens to the sugars made during photosynthesis? (choose 2)
The sugars are released into the air.
The sugars are used for energy.
The sugars are used for growth.
Answer explanation
-Some of the sugars made during photosynthesis are broken down to release usable energy.
-Some of the sugars made during photosynthesis are broken down to release usable energy.
-Some of the sugars made during photosynthesis become part of the organism itself, helping it to grow bigger.
-Oxygen is released into the air during photosynthesis, not sugars.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS1-7
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of these are inputs to photosynthesis? (choose 2)
sugars (glucose)
oxygen
water
carbon dioxide
Answer explanation
Water and Carbon dioxide are inputs to photosynthesis.
Glucose (sugars) and oxygen are outputs to photosynthesis.
Tags
NGSS.MS-LS1-6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Choose the word or phrase that best completes the sentence.
In plants, photosynthesis occurs primarily in ______.
root cells
chlorophyll molecules
chloroplasts
mitochondria
Tags
NGSS.MS-LS1-6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which form of energy do plants capture in order to carry out photosynthesis?
light energy
chemical energy
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram of the plant has arrows representing inputs and outputs of photosynthesis.
Which arrow best represents the movement of oxygen during photosynthesis?
A
B
C
Answer explanation
Arrows A and B are pointing into the plant indicating they are inputs to photosynthesis.
Oxygen is an output of photosynthesis so moves from the plant to the air.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Three groups of students are going to carry out an experiment about photosynthesis. First, the students will submerge Elodea plants in a beaker of water mixed with baking soda (Figure 1). Then, they will place the beaker directly under a lamp.
With the lamp off, the students will count how many bubbles they see rise from the plants. After three minutes of observations, each group will record their results. Next, the students will turn on the lamp. For three minutes, they will again count and record the number of bubbles they see rise from the plants.
Based on what you know about photosynthesis, what do you predict will happen during the experiment?
Figure 1. Elodea plants submerged in a beaker of water mixed with baking soda.
Fewer bubbles will be released when the light is on compared to when the light is off.
About the same number of bubbles will be released whether the light is on or off.
More bubbles will be released when the light is on compared to when the light is off.
Answer explanation
During the experiment, oxygen bubbles will be used to detect the rate of photosynthesis in the plants. When the light is turned on, the rate of photosynthesis will likely go up. This will produce more oxygen, so more bubbles will be visible.
Tags
NGSS.MS-LS1-6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which image shows an organism that performs photosynthesis?
Tags
NGSS.MS-LS1-6
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