Plant nutrition

The type of energy required for photosynthesis is

• heat
• light
• sound
• kinetic

Which one of the following is NOT a chemical required for photosynthesis?

• water
• carbon dioxide
• chlorophyll
• light

Which gas is produced by photosynthesis?

• oxygen
• carbon dioxide
• nitrogen
• methane

The chemical formula for glucose is

• CO₂
• C₆H₁₂O₆
• C₆H₆O₆
• C₆H₆O₁₂

A plant is destarched by

• adding iodine to it
• boiling it in ethanol
• keeping it in the dark for 48 hours
• using Benedict's reagent

Testing this type of leaf can show that

• carbon dioxide is needed for photosynthesis
• light is needed for photosynthesis
• chlorophyll is needed for photosynthesis
• water is needed for photosynthesis

a. add iodine to the leaf
b. boil leaf in water
c. boil leaf in alcohol
d. rinse leaf in water
The correct sequence used to test a leaf for starch from the steps above is:

• a b c d
• b c d a
• c d a b
• d c a b

In this experiment what factor in photosynthesis is being investigated?

• need for water
• need for light
• need for carbon dioxide
• need for chlorophyll

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which is the balanced symbol equation for photosynthesis?

• CO₂ + H₂O =
  C₆H₁₂O₆ + O₂
• 6CO₂ + 6H₂O =
  6C₆H₁₂O₆ +6O₂
• 6CO₂ +6H₂O =
  C₆H₁₂O₆ + O₂
• 6CO₂ + 6H₂O =
  C₆H₁₂O₆ + 6O₂

A plant photosynthesises but never respires

• True
• False