CTO Science Chapter 6 Test

Which gas is removed from the atmosphere during photosynthesis?

• hydrogen
• oxygen
• nitrogen
• carbon dioxide

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 is the "waste" gas (product) produced during photosynthesis?

• oxygen
• nitrogen
• helium
• hydrogen

What is the pigment molecule that absorbs the sunlight ?

• hemoglobin
• chlorophyll
• ATP
• ethyl alcohol

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + glucose
• CO₂ + glucose + H₂O --> O₂ + light
• _O2 + light + H₂O --> CO₂ + glucose
• CO₂ + O₂ + H₂O --> Light+ glucose

What is the tiny openings that let in the carbon dioxide needed for photosynthesis?

• stomata

• xylem

• phloem

• chloroplast

What is photosynthesis?

• The process in which humans eat their food
• When a photographer takes a photo.
• To get your pictures from the photo lab.
• The process in which plants make their food.

During cellular respiration, what do animal cells use to produce energy from food?

• sunlight
• meat
• water
• oxygen

The process by which cells use oxygen to produce energy from food is called?

• photosynthesis
• transpiration
• cellular respiration
• germination

Why are many plants green?

• plant cells are green

• plants absorb green light

• chlorophyll reflects green light

• rigid cell walls are green