Biology Test #5

Descrição

Chapter 8
alys.caldwell
Quiz por alys.caldwell, atualizado more than 1 year ago
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Criado por alys.caldwell mais de 8 anos atrás
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Resumo de Recurso

Questão 1

Questão
Which of the following affects the rate of photosynthesis?
Responda
  • light intensity
  • water
  • temperature
  • all of the above

Questão 2

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

Questão 3

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

Questão 4

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

Questão 5

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

Questão 6

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

Questão 7

Questão
The Calvin cycle takes place in the
Responda
  • photosystems
  • stroma
  • thylakoid membranes
  • chlorophyll molecules

Questão 8

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

Questão 9

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

Questão 10

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

Questão 11

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

Questão 12

Questão
If carbon dioxide is removed from a plant's environment, what would you expect to happen to its production of high-energy sugars?
Responda
  • 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.

Questão 13

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

Questão 14

Questão
Which of the following is an autotroph?
Responda
  • tree
  • monkey
  • dog
  • mushroom

Questão 15

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

Questão 16

Questão
Most plants appear green because chlorophyll
Responda
  • absorbs green light
  • does not absorb green light
  • does not absorb violet light
  • does not absorb red light

Questão 17

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

Questão 18

Questão
According to your reading, if you continue to increase the intensity of light that a plant receives, what happens?
Responda
  • 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.

Questão 19

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

Questão 20

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

Questão 21

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

Questão 22

Questão
Which step is the beginning of photosynthesis?
Responda
  • 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

Questão 23

Questão
The stroma is the space that surrounds
Responda
  • thylakoids
  • plant cells
  • chloroplasts
  • all of the above

Questão 24

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

Questão 25

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

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