photosynthesis 1

The main source of energy for all life comes from ____.

• the Earth

• the moon

• the sun

• the food we eat/make

Most plants appear green because chlorophyll

• absorbs green light.

• reflects green light.

• absorbs violet light.

• does not absorb violet light.

The reactants of photosynthesis are

• sugar and water.

• sugar and oxygen.

• carbon dioxide and water.

• carbon dioxide and oxygen.

Which statement about photosynthesis is correct?

• Plants get the energy they need for photosynthesis from water.

• Plants get the energy they need for photosynthesis from soil.

• Plants get the energy they need for photosynthesis from sunlight.

• Plants do not require energy to perform photosynthesis.

What are the products of photosynthesis?

• Carbon dioxide and water

• Carbon dioxide and oxygen

• Glucose, water and oxygen

• Glucose and water

What pigment absorbs sunlight for photosynthesis?

• chloroplast

• grana

• thylakoid

• chlorophyll

Which of the following is the correct equation for PHOTOSYNTHESIS?

• 6CO₂ + 12H₂O --> 6O₂ + C₆H₁₂O₆ + 6H₂O

• 6CO₂ + C₆H₁₂O₆ + 6H₂O --> O₂

• C₆H₁₂O₆ + 6O₂ --> 6H₂O + 6CO₂

• 6O₂ + 6H₂O --> 6CO₂ + C₆H₁₂O₆

Which gas is removed from the atmosphere during photosynthesis?

• hydrogen

• oxygen

• nitrogen

• carbon dioxide

In this drawing of a chloroplast, which structure represents the thylakoid membrane?

• structure A

• structure B

• structure C

• structure D

• structure E

How do H+ ions make their way from the stroma to the thylakoid interior?

• directly through the phospholipids of the thylakoid membrane

• through an electron transport chain molecule

• through the ATP synthase

• through photosystem II

• through photosystem