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Biology Test #5

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Chapter 8
alys.caldwell
Quiz by alys.caldwell, updated more than 1 year ago
alys.caldwell
Created by alys.caldwell almost 9 years ago
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Resource summary

Question 1

Question
Which of the following affects the rate of photosynthesis?
Answer
  • light intensity
  • water
  • temperature
  • all of the above

Question 2

Question
What are the products of the light-dependent reactions?
Answer
  • oxygen gas
  • ATP
  • NADPH
  • all of the above

Question 3

Question
In the light reactions of photosynthesis, which is the molecule complex that energizes electrons just before going to the Calvin cycle?
Answer
  • photosystem 2
  • ATP synthase
  • electron transport chain
  • photosystem 1

Question 4

Question
Ingenhousz showed that plants produce oxygen bubbles when exposed to
Answer
  • ATP
  • carbon dioxide
  • a burning candle
  • light

Question 5

Question
What is a product of the Calvin cycle?
Answer
  • glucose
  • oxygen gas
  • carbon dioxide
  • ATP

Question 6

Question
Plants gather the sun's energy with light-absorbing molecules called
Answer
  • glucose
  • pigments
  • thylakoids
  • chloroplasts

Question 7

Question
The Calvin cycle takes place in the
Answer
  • photosystems
  • stroma
  • thylakoid membranes
  • chlorophyll molecules

Question 8

Question
Jan van Helmont concluded that plants gain most of their mass from
Answer
  • the soil
  • oxygen in the air
  • carbon dioxide in the air
  • water

Question 9

Question
How does carbon dioxide get into the plant?
Answer
  • thylakoids
  • stomata (stomates)
  • roots
  • osmosis

Question 10

Question
What is the name of the enzyme that combines CO2 with a 5-carbon molecule to begin the Calvin cycle?
Answer
  • ATP synthase
  • Rubisco
  • Polycalvinase
  • Deoxyribonase

Question 11

Question
What is the 5-carbon molecule in the Calvin Cycle that joins with the incoming CO2?
Answer
  • ribose
  • AUG
  • deoxyribose
  • RuBP

Question 12

Question
If carbon dioxide is removed from a plant's environment, what would you expect to happen to its production of high-energy sugars?
Answer
  • No sugars will be produced.
  • The same number of sugars will be produced but without carbon dioxide.
  • More sugars will be produced.
  • Carbon dioxide does not affect the production of high-energy sugars in plants.

Question 13

Question
The Calvin cycle is another name for
Answer
  • light-independent reactions
  • photosynthesis
  • light-dependent reactions
  • all of the above

Question 14

Question
Which of the following is an autotroph?
Answer
  • tree
  • monkey
  • dog
  • mushroom

Question 15

Question
What term describes the chemical reaction that ADDs electrons to a molecule?
Answer
  • reduction
  • transformation
  • chargification
  • oxidation

Question 16

Question
Most plants appear green because chlorophyll
Answer
  • absorbs green light
  • does not absorb green light
  • does not absorb violet light
  • does not absorb red light

Question 17

Question
A granum is a(an)
Answer
  • photosynthetic pigment molecule
  • membrane enclosing a thylakoid
  • stack of chloroplasts
  • stack of thylakoids

Question 18

Question
According to your reading, if you continue to increase the intensity of light that a plant receives, what happens?
Answer
  • The rate of photosynthesis increases and then levels off.
  • The rate of photosynthesis does not change.
  • The rate of photosynthesis increases with light intensity.
  • The rate of photosynthesis decreases with light intensity.

Question 19

Question
Energy is released from ATP when
Answer
  • ATP is exposed to sunlight
  • a phosphate group is removed
  • a phosphate group is added
  • adenine bonds to ribose

Question 20

Question
Which of the following is NOT a part of an ATP molecule?
Answer
  • phosphate
  • adenine
  • chlorophyll
  • ribose

Question 21

Question
The light-collecting units of a chloroplast are the
Answer
  • stroma
  • electron carriers
  • high-energy sugars
  • photosystems

Question 22

Question
Which step is the beginning of photosynthesis?
Answer
  • HIgh-energy electrons move through the electron transport chain
  • Pigments in photosystem I absorb light
  • Pigments in photosystem II absorb light
  • ATP synthase allows H+ ions to pass through the thylakoid membrane

Question 23

Question
The stroma is the space that surrounds
Answer
  • thylakoids
  • plant cells
  • chloroplasts
  • all of the above

Question 24

Question
Which scientists showed that plants need light to produce oxygen?
Answer
  • Priestley and Calvin
  • Priestley and Ingenhousz
  • van Helmont and Calvin
  • van Helmont and Priestley

Question 25

Question
Which of the following is NOT required for photosynthesis to occur?
Answer
  • water
  • carbon dioxide
  • oxygen
  • light
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