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WorksheetsLesson 21: Photosynthesis
Total questions: 10
Worksheet time: 6mins
Which of the following best describes why photosynthesis is considered an endergonic reaction?
Requires three or more reactants
Releases energy
Requires the absorption of energy
Releases oxygen as a product
Which word equation best represents the process of photosynthesis?
Water + sucrose -> oxygen + water
Glucose + oxygen -> carbon dioxide + water + oxygen
Carbon dioxide + water -> glucose + oxygen
Oxygen + water -> glucose + carbon dioxide
Which of the following is true?
Cellular respiration is endergonic, and photosynthesis is exergonic
Cellular respiration takes place in the chloroplasts, and photosynthesis takes place in the mitochondria
The reactants of photosynthesis are the same as the products of cellular respiration
The products of cellular respiration are the same as the products of photosynthesis
Although it is called the "light-independent" reaction, the (a) cycle can occur either in the absence or presence of sunlight.
Select all answers below that correctly describe the differences between the light reactions and the Calvin cycle.
The light reactions convert energy to ATP and NADPH, and the Calvin cycle uses this energy to convert carbon dioxide to glucose
The light reactions require light, and the Calvin cycle is the dark cycle that does not occur in sunlight
The light reactions require light, and the Calvin cycle can occur either in the absence or presence of sunlight
The light reactions produce oxygen, and the Calvin cycle produces carbon dioxide
Tiny pores in the leaf that exchange gases with the environment are called -
thylakoids
stomata
stroma
chloroplasts
Which of the following are produced by the light reaction of photosynthesis?
NADPH, glucose, and ADP
PGAL, water, and ADP
Carbon dioxide, ATP, and glucose
Oxygen, ATP, and NADPH
Where does the Calvin cycle, or light-independent reaction, occur?
Golgi apparatus
Ribosome
Stroma
Thylakoids
What is the green pigment found in plants that traps the Sun's energy for photosynthesis?
chlorophyll
xanthophyll
carotene
NADPH
Which of the following represent the products of photosynthesis?
Glucose and oxygen
ATP and NADPH
Carbon dioxide and water
Sunlight and ATP
