What does the Rf value in thin layer chromatography represent?

The ration of distances travelled by the pigment and solvent

The distance travelled by the pigment front in a fixed time period

The distance from the origin to the solvent front at the end of the experiment

The concentration of pigment applied to the chromatography plate

The action spectra for two different types of photosynthetic organisms are shown. Ulva, or seas lettuce, is a green marine alga composed of two layers of cells. The action spectrum for crop plants was plotted from an average of 22 species of plants.

Crop plants photosynthesize more than Ulva in green light.

Ulva photosynthesizes more than crop plants at red wavelengths.

Photosynthesis by Ulva is highest in red light while that of crop plants is highest in blue.

Both have zero photosynthesis at 750 nm.

Which process does not take place in the stroma of chloroplast?

Synthesis of ribulose bisphosphate

Which reaction does not cause a net release of energy?

ADP combines with inorganic phosphate to form ATP

ATP releases inorganic phosphate to form ADP

Loss of hydrogen from reduced NAD

Which process occurs during the light-dependent reaction of photosynthesis?

ATP, CO 2 , and H 2 O are priduced

CO 2 is used to produce carbohydrates

What is used to reduce NADP in the light-dependent reactions of photosynthesis?

Protons from the thylakoid space

Oxygen released by the photolysis of water

Which technological advancement enabled Calvin to perform his lollipop experiment on the light-independent reaction of the photosynthesis in 1949?

Methods for tracing radioactive carbon incorporated in molecules produced by the alga Chlorella

Development of electron microscopes enabling the molecules produced by the alga Scenedesmus to be viewed.

Methods for changing the wavelength of light shining on the alga Scenedesmus contained in the lollipop.

Development of X-ray diffraction techniques enabling the molecules produced by the alga Chlorella to be identified.

What occurs in the light-independent reactions of photosynthesis?

Glycerate 3 phosphate is reduced to triose phosphate.

Ribulose bisphosphate is regenerated using reduced NADP.

Ribulose bisphosphate is oxidized to two molecules of glycerate 3 phosphate.

Both ATP and NADP are used to produced triose phosphate.

IB Photosynthesis

Authored by Annie Hawkins

Science

12th Grade

NGSS covered

Used 27+ times

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17 questions

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LABELING QUESTION

15 mins • 1 pt

Drag the molecule to the correct location on the diagram.

C₆H₁₂O₆

NADPH

O₂

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

REORDER QUESTION

15 mins • 1 pt

Order the following steps of photosynthesis in chronological order.

An electron from chlorophyll a becomes "excited" and jumps into an ETC

NADPH and ATP is used to convert G3P into TP

An electrochemical gradient is established with a high concentration of H+ inside of the lumen of the thylakoid.

ATP is generated through chemiosmosis and ATP synthase.

RuBP is regenerated through 10 molecules of triose phosphate

Tags

NGSS.HS-LS1-5

MATCH QUESTION

15 mins • 1 pt

Match the following:

Drained Battery

ADP

ATP

NADPH

Charged Battery

NADP⁺

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

HOTSPOT QUESTION

15 mins • 1 pt

Click the location of the light dependent reactions.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

HOTSPOT QUESTION

15 mins • 1 pt

Click the location of the light independent reactions.

Tags

NGSS.HS-LS2-5

CATEGORIZE QUESTION

15 mins • 1 pt

Sort the steps of photosynthesis into the light dependent or light independent reactions.

Groups:

(a) Light Dependent

(b) Light Independent

Produces NADPH

Produces ADP

Requires light

Produces NADP+

Produces RuBP

Occurs in the thylakoid membranes

Produces Glucose

Occurs in the stroma

Produces Oxygen

Produces ATP

Tags

NGSS.HS-LS1-5

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Throwback Question: The graph shows atmospheric oxygen levels over time. About 2.5 billion years ago, a significant rise in atmospheric oxygen occurred. What was the cause of this rise?

Photosynthesis by non-vascular land plants.

Photosynthesis by vascular land plants.

Oxygen produced by photosynthetic bacteria being released from the ocean into the atmosphere.

Volcanic activity

Tags

NGSS.HS-ESS1-6

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IB Photosynthesis

Drag the molecule to the correct location on the diagram.

Order the following steps of photosynthesis in chronological order.

Match the following:

Click the location of the light dependent reactions.

Click the location of the light independent reactions.

Sort the steps of photosynthesis into the light dependent or light independent reactions.

Throwback Question: The graph shows atmospheric oxygen levels over time. About 2.5 billion years ago, a significant rise in atmospheric oxygen occurred. What was the cause of this rise?

What does the Rf value in thin layer chromatography represent?

The action spectra for two different types of photosynthetic organisms are shown. Ulva, or seas lettuce, is a green marine alga composed of two layers of cells. The action spectrum for crop plants was plotted from an average of 22 species of plants.

A summary diagram of photosynthesis is shown. Which molecule represents ATP?

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