Photosynthesis Lesson

Photosynthesis occurs inside of which organelle?

• chloroplasts

• the cell wall

• mitochondria

• ribosomes

Tags

NGSS.MS-LS1-6

Photosynthesis occurs

• in the cells of autotrophs.

• in the cells of heterotrophs.

• only in the upper troposphere.

• when plants or animals decompose.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

How do plants get the carbon dioxide they need for photosynthesis?

• Carbon dioxide is produced in a chemical reaction inside their chloroplasts.

• Carbon dioxide enters their leaves from the atmosphere.

• Carbon dioxide enters their roots from the soil.

• Carbon dioxide is produced in a chemical reaction inside their mitochondria.

Tags

NGSS.MS-LS1-6

In addition to carbon dioxide, ___________ is a reactant of photosynthesis.

• oxygen

• glucose

• carbon dioxide

• water

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NGSS.MS-LS1-6

Which of the following available in air is the raw material for photosynthesis

• Hydrogen

• Carbon dioxide

• Oxygen

• hydrogen

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NGSS.MS-LS1-6

Green plants are called _____ since they synthesise their own food.

• Autotrophs

• Heterotrophs

• Saprotrophs

• Host

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings. Which of the following is the term given to such openings?

• stomata

• midrib

• vein

• lamina

Tags

NGSS.MS-LS1-6

Which of the following is correct?

• Algae is a parasite

• Carbon dioxide is released during photosynthesis

• Sun is ultimate source of energy

• Mushroom is a autotroph

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What do plants do with most of the oxygen produced in photosynthesis?

• They use most of the oxygen to make more glucose.

• They release most of the oxygen into the atmosphere.

• They release most of the oxygen into the soil.

• They use most of the oxygen to produce carbon dioxide.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why is photosynthesis important to plants?

• It prevents the buildup of too much water in their cells.

• It produces the carbon dioxide they need for plant digestion.

• It breaks down a simple sugar into a type of energy their cells can use.

• It produces a simple sugar they need for cellular respiration.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3