If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O, in which of the products of photosynthesis will the radioactive H and O show up?

H in glucose and water; O in O2

H in glucose and water; O in water and O2

The light reactions occur in the ________, while the Calvin cycle occurs in the ________.

thylakoid membranes . . . stroma

cytoplasm . . . thylakoid membrane

troma . . . thylakoid membranes

Why are most plants green?

B) Chlorophyll a reflects green light.

Chlorophyll a absorbs green light.

C) Chlorophyll b primarily uses green light as the source of energy for photosynthesis.

D) Green helps plants blend into their environment as a sort of camouflage.

E) All photosynthetic pigments are colored green.

15) Which of the following statements about the absorption of photons by pigment molecules is true?

D) The release of energy by the excited electron can be as heat, light, or fluorescence.

A) Pigments only lose energy in the excitation process.

B) Photons raise electrons in pigments to the ground state.

C) It takes several minutes for the pigment electrons to become excited.

E) Excitation of the electrons is a very stable state.

19) The electron transport chains of the light reactions

E) shuttle electrons along in a series of redox reactions.

A) are found on the inner membrane of chloroplasts.

C) provide energy for the Krebs cycle.

D) are very different from those of cellular respiration.

C) passes electrons to photosystem I.

A) releases CO2 as a by-product.

B) has P700 at its reaction center.

E) does not have a reaction center.

In photophosphorylation, energy from electron flow is used to transport ________ from the ________ to the thylakoid compartment, generating a concentration gradient of ________.

B) electrons . . . grana . . . H+

C) electrons . . . stroma . . . H+

E) H+ . . . grana . . . electrons

22) The chloroplast ATP synthase

C) transports H+ ions from the stroma to the thylakoid space.

A) helps transport H+ against the concentration gradient.

B) is embedded in the inner membrane of the chloroplast.

D) couples the flow of H+ to the phosphorylation of NADP+.

23) In photosynthesis, the chemiosmotic production of ATP

C) is analogous to the production of ATP in mitochondria.

A) requires the input of NADPH.

D) is done by the Calvin cycle.

E) is a result of the oxidation of glucose.

E) play a role in glucose synthesis by plants.

A) are products of the Calvin cycle.

B) are used in the electron transport chain to pump H+ into the thylakoid space.

C) are inputs to the photosystems.

D) production is associated with events taking place on the inner mitochondrial membrane.

D) have mitochondria and chloroplasts.

A) have mitochondria but do not have chloroplasts.

B) lack mitochondria and chloroplasts.

C) have chloroplasts and vestigial mitochondria.

E) lack mitochondria but have chloroplasts.

B) protects Earth from UV radiation.

A) formation is promoted by CFCs.

C) is a source of oxygen for cellular respiration.

D) levels in the atmosphere have been steadily increasing in the past century.

is broken down by carbon dioxide.

29) Ozone consists of ________ oxygen atom(s).

E) is broken down by carbon dioxide.

A) formation is promoted by CFCs.

B) protects Earth from UV radiation.

C) is a source of oxygen for cellular respiration.

D) levels in the atmosphere have been steadily increasing in the past century.

Ch 7 Practice Test Quizizz

Authored by David Arreguin

Biology

9th Grade

NGSS covered

Used 30+ times

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement regarding photosynthesis and CO2 is FALSE?

Plants require carbon dioxide, water, and sunlight to make glucose.

Burning wood contributes more to acid rain than burning fossil fuels.

Because of their short growth period and self-regeneration, willows are more viable as a source of

potential power than the trees in most natural forests.

Most of the food humans eat can be traced back to photosynthetic plants.

Burning fossil fuels release carbon dioxide that was removed from the atmosphere millions of years ago.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

NGSS.HS-ESS2-6

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Photoautotrophs...

produce organic molecules from inorganic molecules.

are only found on land.

make sugar by using organic raw materials.

include only the green plants.

eat other organisms that use light energy to make food molecules.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Autotrophs that utilize light as their energy source are

consumers.

heterotrophs.

photoautotrophs.

chemosynthetic autotrophs.

fungi.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

________ cells in leaves are specialized for photosynthesis.

Mesophyll

Tracheid

Collenchyma

Companion

Sclerenchyma

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called the

stomata.

thylakoid.

stroma.

mesophyll.

matrix.

Tags

NGSS.HS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chloroplasts contain disklike membranous sacs arranged in stacks called

grana.

stroma.

thylakoids.

vacuoles.

cristae.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following molecules is both a reactant and a product of photosynthesis?

glucose

H2O

chlorophyll

CO2

Tags

NGSS.HS-LS2-5

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Ch 7 Practice Test Quizizz

Which statement regarding photosynthesis and CO2 is FALSE?

Photoautotrophs...

Autotrophs that utilize light as their energy source are

________ cells in leaves are specialized for photosynthesis.

In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called the

Chloroplasts contain disklike membranous sacs arranged in stacks called

Which of the following molecules is both a reactant and a product of photosynthesis?

If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O, in which of the products of photosynthesis will the radioactive H and O show up?

A redox reaction involves the transfer of

The light reactions occur in the , while the Calvin cycle occurs in the .

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Biology

Ch 7 Practice Test Quizizz

Which statement regarding photosynthesis and CO2 is FALSE?

Photoautotrophs...

Autotrophs that utilize light as their energy source are

﻿________ cells in leaves are specialized for photosynthesis.

In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called the

Chloroplasts contain disklike membranous sacs arranged in stacks called

Which of the following molecules is both a reactant and a product of photosynthesis?

If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O, in which of the products of photosynthesis will the radioactive H and O show up?

A redox reaction involves the transfer of

The light reactions occur in the ________, while the Calvin cycle occurs in the ________.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Biology

________ cells in leaves are specialized for photosynthesis.

The light reactions occur in the , while the Calvin cycle occurs in the .