AnswersFL-2000310-Biology 1 AUnit Test

The Process of Photosynthesis Answers

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Consider the formula for glucose: C6H12O6. In the processes of photosynthesis, what supplies the hydrogen (H) used in the formation of glucose?

A
light energy
B
carbon dioxide
C
chlorophyll
D
water
2
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Which of these statements is true about autotrophs, but not heterotrophs?

A
They use sugar and oxygen to make carbon dioxide and water.
B
They use chlorophyll and oxygen to make carbon dioxide and water.
C
They use sunlight, water, and carbon dioxide to make sugars.
D
They use sunlight, water, and oxygen to make chlorophyll.
3

How are the reactants represented in the chemical equation for photosynthesis?

A
6CO2 + O2
B
6CO2 + 6H2O
C
C6H12O6 + 6O2
D
C6H12O6 + 6H2O
4

Which statement best describes the relationship of photosynthesis and energy?

A
The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.
B
The process of photosynthesis is energy-releasing because the process converts light energy into free energy that can be used for cell functions.
C
The process of photosynthesis is energy-conserving because no energy is used throughout the process of forming glucose and oxygen molecules.
D
The process of photosynthesis is energy-wasting because photosynthesis is an inefficient process that depletes the cell of energy stored in the bonds of glucose.
5

Which is the word equation for photosynthesis?

A
mc009-1.jpg
Option A
B
mc009-2.jpg
Option B
C
mc009-3.jpg
Option C
D
mc009-4.jpg
Option D
6

How are the products represented in the chemical equation for photosynthesis?

A
O2 + 6CO2
B
C6H12O6 + 6H2O
C
6CO2 + 6H2O
D
C6H12O6 + 6O2
7

In which situation would it be least likely for a scientist to revise her experimental methods?

A
if her results support her hypothesis
B
if her data do not support her hypothesis
C
if no conclusions can be drawn from the data
D
if results are the same after repeating the procedure
8

Miles wants to write the equation for photosynthesis. The diagram below represents one of the molecules in the equation.Which chemical formula reflects the diagram?

Question illustration
A
6O12H6C
B
6C12H6O
C
O6H12C6
D
C6H12O6
9

Johannes wants to know whether soil, water, or both are needed for plant growth. He chooses to conduct experiments on a willow tree for five years to answer his question. How can his experimental methods be changed to improve his experiment?

A
He needs to ask scientists what they think.
B
He needs to conduct the experiment for a longer period.
C
He needs to use a larger sample size.
D
He needs to test more factors in the environment.
10

Which statement summarizes a change that occurs during photosynthesis?

A
It converts visible light to high-energy gamma rays.
B
It converts carbon to oxygen.
C
It converts light energy to chemical energy.
D
It converts energy to mass.

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