1.4 Photosynthesis Experiments

___________ is used to test for the presence of starch -- if starch is present, the colour would turn _____________.

• Iodine, brown

• Iodine, blue-black

• Chlorophyll, brown

• Chlorophyll, blue-black

Starch is stored food in plants. The presence of starch in plants means that _________________ successfully happened in the plant. (Hint: Name the process)

Tags

NGSS.MS-LS1-6

An experiment was conducted to investigate photosynthesis. What is the independent variable of this experiment?

• Presence of carbon dioxide gas

• Presence of water

• Presence of light

• Presence of chlorophyll

Tags

NGSS.MS-LS1-6

An experiment was conducted to investigate photosynthesis. What are the variables that need to be controlled in this experiment? (There is more than one answer)

• Presence of carbon dioxide gas

• Presence of water

• Presence of light

• Presence of hydrogen gas

• Presence of chlorophyll

An experiment was conducted to investigate photosynthesis. What is the independent variable of this experiment?

• Presence of carbon dioxide gas

• Presence of water

• Presence of light

• Presence of chlorophyll

Tags

NGSS.MS-LS1-6

An experiment was conducted to investigate photosynthesis. Which are the variables that need to be controlled in this experiment? (There are more than one answer)

• Presence of carbon monoxide gas

• Presence of water

• Presence of carbon dioxide gas

• Presence of chlorophyll

• Amount of light received

An experiment was conducted to investigate photosynthesis. What is the independent variable of this experiment?

• Presence of carbon dioxide gas

• Presence of water

• Presence of light

• Presence of chlorophyll

Tags

NGSS.MS-LS1-6

An experiment was conducted to investigate photosynthesis. Which variables need to be controlled in this experiment? (There are more than one answer)

• Presence of carbon dioxide gas

• Presence of dust

• Amount of light received

• Species, age and health of the plants

• Volume of water used for the plants

Which of the following is true about the part of the leaf that was not covered by black paper when it is tested with iodine at the end of the experiment?

• It turns blue-black

• It turns brown

• No change in colour

• It turns red

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is true about the part of the leaf that is green in colour when it is tested with iodine at the end of the experiment?

• It turns blue-black

• It turns blue

• No change in colour

• It turns brown

Tags

NGSS.MS-LS1-6