Photosynthesis Quizlet by Lexi Moore

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6CO2 + ____ ----with light energy and chlorophyll ----> C6H12O6 + 6O2

6H2O

What is chlorophyll?

A green pigment found in the chloroplasts of plants as well as in algae and some bacteria.

6CO2 + 6H2O ----with light energy and chlorophyll ----> _______+ 6O2

C6H12O6

At this time what gas enters the leaf?

CO2

What gas do humans provide for a plant to use?

CO2

What gas does a plant provide for humans to use?

Oxygen

Describe Phloem

Vascular tissue through which food moves through plants.

An average size tree produces enough oxygen to keep (how many?) people alive?

2-4

____ + 6H2O ----with light energy and chlorophyll ----> C6H12O6 + 6O2

6CO2

What is the full chemical equation (formula) for photosynthesis?

6CO2 + 6H2O ----with light energy and chlorophyll ----> C6H12O6 + 6O2

6CO2 + 6H2O ----with light energy and chlorophyll ----> C6H12O6 + ___

6O2

Describe the process of photosynthesis.

A plant uses carbon dioxide gas and water to make food and oxygen. The process occurs in a series of complex chemical reactions. Sunlight provides the energy that powers the entire process.

What is the full equation using words for photosynthesis?

Carbon dioxide + water ----with light energy and chlorophyll ----> glucose/sugar + oxygen

Describe Palisade Layer

Contains upper leaf cells which have chloroplasts that trap the energy in sunlight for photosynthesis

During photosynthesis, what is stripped from the water molecules?

H atoms

What molecule is now formed once again?!

H2O

Can a plant stay alive without light?

In general, no because plants need sunlight to photosynthesize (make their own food). However, scientist John Bayer kept corn kernels alive for 5 days by giving them sugar water.

Can a plant produce CO2 without sunlight?

No

Can a plant survive without oxygen?

No because the plant needs "some" oxygen to break down food it fed itself from photosynthesis. It needs oxygen to break down the carbohydrate molecures to release the energy stored in these molecules. Without oxygen and sunlight, the plant will die from starvation!

Describe Stomata

Small openings on the underside of most leaves where carbon dioxide enters and oxygen and water vapor exits.

CO2 enters leaf through "holes" called __________?

Stomata

Describe chloroplasts

Structure of plant cells in which food is made. Found in the palisade layer Shaped like green jelly beans

Describe Xylem

Vascular tissue (looks like tubes) that carries water/nutrients absorbed by plant's roots up into leaf.

What role do Stomata play in Photosynthesis?

allows CO2 to enter the leaf while allowing O2 and water to leave leaf; provides CO2 and carries it to chloroplasts to help in photosynthesis

What role does Phloem play in Photosynthesis?

carries food (sugar) to other parts of plant

What role does Xylem play in Photosynthesis?

carries water to chloroplasts to help in photosynthesis

Photosynthesis is how plants make ________?

food

What other molecule is also formed at this time?

glucose

What role does Palisade Layer play in Photosynthesis?

home for the chloroplasts where photosynthesis occurs

Water molecules in plants come from what two places?

leaf cells and below (ground surface -- i.e. roots)

6CO2 + 6H2O ----with ___________________ ----> C6H12O6 + 6CO2

light energy and chlorophyll

The stripped molecules form pairs. Where does it go after this?

out of leaf to surrounding atmosphere

From where does the cell get the energy to strip the H atoms off?

sunlight

What 3 main things does a plant need for photosynthesis to occur?

sunlight, water, CO2

What role do chloroplasts play in Photosynthesis?

traps energy in sunlight that powers photosynthesis; receives CO2 and water which along with sunlight photosynthesizes into food (sugar) and oxygen


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