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Photosynthesis and Leaf Testing Quiz

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Questions and Answers

What are the primary products of photosynthesis?

Oxygen and water

Glucose and oxygen (correct)

Carbon dioxide and oxygen

Carbon dioxide and water

What is the correct order of steps for testing a leaf for starch?

Soften in boiling water, boil in ethanol, cover with iodine

Boil in ethanol, soften in boiling water, cover with iodine

Soften in boiling water, cover with iodine, boil in ethanol (correct)

Boil in ethanol, cover with iodine, soften in boiling water

What would be the appearance of a variegated leaf with a strip of foil placed over it, after being illuminated for 24 hours and stained with iodine solution?

Diagram D

Diagram A

Diagram B (correct)

Diagram C

Between X and Y on the diagram, which of the following is correct?

Photosynthesis rate > respiration rate Signup and view all the answers

At point Y on the diagram, which of the following is correct?

Respiration rate = photosynthesis rate Signup and view all the answers

Between Y and X on the diagram, which of the following is correct?

Photosynthesis rate > respiration rate Signup and view all the answers

Which of the following statements about osmosis is correct?

water moves into cells by osmosis from a higher water potential to a lower water potential Signup and view all the answers

What is the evaporation of water from a leaf called?

transpiration Signup and view all the answers

In which of the following structures would radioactivity be found after two hours if a plant's leaves were exposed to radioactively labelled 14CO2?

xylem and phloem Signup and view all the answers

What is the name of the apparatus shown in the diagram that is used to measure the rate of water loss from a plant?

potometer Signup and view all the answers

Under which of the following conditions would the air bubble move fastest?

increased light intensity Signup and view all the answers