Photosynthesis and Respiration

Sunlight​

​

Water

In terms of “making food,” the ingredients that the plant uses are sunlight, water, and carbon dioxide. The food-making takes place in the chloroplast of the plant cell, and the food that is made is glucose.

Carbon Dioxide

Multiple Choice

Where does food-making in the plant cell take place?

• Central Vacuole

• Chlorophyll

• Chloroplast

• Outside the cell

Roots draw water into the

plant, and the water travels

through vessels to get to the leaves.

Next

Carbon dioxide, the same gas

that people exhale, enters

into the leaf through

openings called stomata.​

First

Steps of Photosynthesis

The energy from sunlight

splits the water molecules into hydrogen and oxygen gas. The

oxygen is released from the leaf and exits through the stomata.

Inside the chloroplast,

chlorophyll (a green

substance) traps sunlight.

Then

Steps of Photosynthesis

The hydrogen gets combined with the carbon dioxide, making glucose​. The plant will keep the glucose for energy, and store the extra glucose as starch in its leaves, fruit, or roots.

​

Last

Multiple Select

What do plants need to go perform photosynthesis? (3)

• Water

• Carbon Dioxide

• Oxygen

• Sunlight

  (energy)

• Plant Food

Multiple Choice

After photosynethsis plants perform ________ to change food into engergy.

• photosynthesis

• respiration

• transpiration

Multiple Choice

Respiration is the process that plants use to :

• turn food into energy

• make food

• release water

Multiple Select

What is needed for respiration? (2)

• oxygen

• carbon dioxide

• sugar

• water

Multiple Select

What are the products of respiration? (2)

• water

• sugar

• carbon dioxide

• sunlight

Multiple Choice

During respiration, ______ is released.

• food

• sugar

• energy

• carbohydrates

Multiple Choice

Water and CO2 come out of the _______ of the leaves.

• guard cells

• chloryphyll

• stomata

Multiple Choice

True/False: When the guard cell is closed the leaf cannot release water.

• True

• False

Multiple Choice

What is transpiration?

• Plants making their own food.

• Plants turning food into energy

• Plants releasing water

Multiple Choice

The _____ keeps the plant from releasing too much water.

• stem

• guard cells

• stomata

• seed coat

Open or Closed?

• Stomata are open when photosynthesis can happen to bring in CO2 and release Oxygen. Example: when the sun is out, when water is available.

• Stomata close when photosynthesis can't happen to save water. Eample: at night, when it has not rained.

Multiple Choice

It is a bright sunny day and it just rained yesterday. The stomata on plants will be:

• open

• closed

Multiple Choice

It is a bright sunny day and it has not rained in 3 weeks. The stomata on plants will be:

• open

• closed

Multiple Choice

It is night-time. The stomata on plants will be:

• open

• closed