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What are the two sets of reactions in photosynthesis called?

• Light-dependent and light-independent reactions

• Light-absorbing and light-emitting reactions

• Dark-dependent and dark-independent reactions

• Heat-dependent and heat-independent reactions

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where does each set of reactions take place in the chloroplast?

• In the nucleus of the cell

• In the stroma of the chloroplast

• In the mitochondria

• In the cytoplasm

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NGSS.MS-LS1-6

What type of cells in a leaf contain chloroplasts and therefore undergo photosynthesis?

• Epidermal cells

• Mesophyll cells

• Guard cells

• Root cells

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NGSS.MS-LS1-6

What is the heavy waxy coating on the outside of most leaves called?

• Epidermis

• Cuticle

• Stomata

• Mesophyll

What is the purpose of the stomata?

• To absorb sunlight

• To allow gas exchange

• To store water

• To transport nutrients

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where would you find guard cells in a leaf?

• In the leaf veins

• In the leaf epidermis

• In the leaf mesophyll

• In the leaf cuticle

What is chlorophyll and where is it located in the chloroplast?

• A green pigment located in the thylakoid membrane

• A red pigment located in the stroma

• A blue pigment located in the cytoplasm

• A yellow pigment located in the nucleus

What are the reactants and products of photosynthesis?

• CO2 and H2O; C6H12O6 and O2

• O2 and C6H12O6; CO2 and H2O

• H2O and O2; CO2 and C6H12O6

• C6H12O6 and CO2; H2O and O2

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What type of organisms can undergo photosynthesis?

• Animals and fungi

• Plants, algae, and bacteria

• Viruses and protozoa

• Insects and mammals

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why do plants close their stomata when it is very hot, dry, or sunny?

• To increase photosynthesis

• To reduce water loss and prevent dehydration

• To absorb more sunlight

• To release oxygen

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NGSS.MS-LS1-6