How does ATP provide energy for the cell?

The bond between the second and third phosphate are broken to release energy.

The bond between the first and second phosphate is broken to release energy.

The bond between the adenine and the sugar is broken to release energy.

The bond between the sugar and phosphates are broken and release energy.

What are the parts of the ATP molecule?

adenine, ribose, phosphate groups

The function of a pigment is to...

absorb some light and reflect the rest

Generate new light ("glow") in certain colors

What is a wavelength?

Distance between two peaks on a wave of light

Distance from light source to the object the light strikes

A single unit / "packet" of light

What are electron carrier molecules?

Molecules that transfer high energy electrons to other molecules

Molecules that carry energy from one reaction to another

Molecules that have little dogs that fit in their purse

When light strikes a photosystem...

Excited electrons jump from chlorophyll to chlorophyll, then to an electron carrier

The first chlorophyll gives electrons to NADP+

Excited ATPs jump from one chlorophyll to the next

What is the purpose of splitting water in PS2 of the light dependent reaction?

Provides e- for PS2 and H+ for the thylakoid space

The splitting of water at photosystem II is known as ____ and results in the production of _____.

photolysis: oxygen, hydrogen ions (protons), and electrons that are given to photosystem II.

photosynthesis: carbon dioxide, G3P, and electrons that are given to photosystem II.

the Calvin cycle: carbon dioxide, G3P, and electrons that are given to photosystem II

chemiosmosis: oxygen, hydrogen ions (protons), glucose and electrons that are given to photosystem II.

As the electrons travel from photosystem II down the first electron transport chain, their energy is used to….

pump hydrogen ions into the thylakoid space, producing a concentration gradient that will later be used by ATP synthase to form ATP.

form oxygen, water, NADPH, and glucose.

pump hydrogen ions into the stroma, producing a concentration gradient that will later be used by an enzyme to form ADP and phosphate.

Why do hydrogen ions flow from the thylakoid space to the stroma through ATP synthase?

They flow passively from the high to low concentration via facilitated diffusion. As they flow through ATP synthase, the enzyme spins and produces ATP.

They are pumped actively through the ATP synthase. This uses ATP energy and causes the production of ADP and phosphate.

They flow through the Calvin cycle and produce light.

Hydrogen ions do not actually flow from the thylakoid space to the stroma. They flow the opposite way.

After electrons get excited by light a second time (at photosystem I), where do they go?

They travel down a second electron transport chain and are donated to NADP+ which becomes NADPH (an electron carrier).

They travel down a second electron transport chain and are donated to ADP, which is then converted to ATP.

They remain excited and then travel to photosystem II where they get even more excited until they spontaneously combust.

They travel down a second electron transport chain and are donated to oxygen which then bonds to hydrogen ions to form water.

What is special about RuBisCo?

used in the Calvin cycle to catalyze the first major step of carbon fixation

it helps with transferring ATP energy

it its the main part of photosynthesis

it is a molecule that joins with G3P to make glucose

What is the function of NADP+?

It is a light-reflecting pigment

It acts as long-term energy storage

What does an electron being "excited" mean?

It has been released from a water molecule

It has been accepted by an electron carrier.

The energy lost by electrons as they move from PS II to PS I (through the electron transport chain) is used to

move H+ from the stroma to the thylakoid space

move H+ from the thylakoid space to the stroma

Photosynthesis

Authored by Beau Guedry

Biology

9th - 12th Grade

NGSS covered

Used 426+ times

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MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which of the following is the correct equation for PHOTOSYNTHESIS?

CO₂+ light + H₂O --> O₂+ Sugar

CO₂+ sugar + H₂O --> O₂+ light

_O2+ light + H₂O --> CO₂+ Sugar

CO₂+ O₂ + H₂O --> Light+ Sugar

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

What is the pigment in chloroplasts that performs photosynthesis?

Chlorosynthesis

Chlorophyll

ADP

Electron Transport

Tags

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is produced as a result of photosynthesis?

Glucose and Chlorophyll

Glucose and Oxygen

Water and Light energy

Carbon dioxide and Water

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What molecule absorbs sunlight for photosynthesis?

chloroplast

thylakoid

grana

chlorophyll

Tags

NGSS.HS-LS1-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement about photosynthesis is correct?

Plants get the energy they need for photosynthesis from water.

Plants get the energy they need for photosynthesis from soil.

Plants get the energy they need for photosynthesis from sunlight.

Plants do not require energy to perform photosynthesis.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably ________.

oxygen

carbon dioxide

ATP

glucose

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not needed for photosynthesis to occur?

sunlight

carbon dioxide

water

oxygen

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

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Photosynthesis

Which of the following is the correct equation for PHOTOSYNTHESIS?

What is the pigment in chloroplasts that performs photosynthesis?

What is produced as a result of photosynthesis?

What molecule absorbs sunlight for photosynthesis?

Which statement about photosynthesis is correct?

A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably ________.

Which of the following is not needed for photosynthesis to occur?

What is the purpose of photosynthesis?

Which of the following is the correct equation for PHOTOSYNTHESIS?

What is the energy molecule for all living cells?

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