Plant Parts
Vascular System
Gas Exchange
Survival Needs
100

This organ or part of the plant does photosynthesis. 

Leaf/leaves

100

The xylem is responsible for transporting what substance?

Water

100

What gas does a plant need in order to do photosynthesis?

CO2 (carbon dioxide)

100

What is the plant's energy source for photosynthesis?

The sun

200

This organ allows water and sugars to move through the plant while also holding it up.

Stem

200

The phloem is responsible for transporting what substances?

Nutrients (mostly sugars)

200

What gas does a plant produce during photosynthesis?

O2 (oxygen)

200

What important process does the plant need water to perform?

Photosynthesis

300

This structure can be very extensive and is responsible for creating significant support and increasing water pressure. 

Roots
300

Which vascular structure only allows movement in one direction?

Xylem

300

What is the name of the openings in the leaves where gases are exchanged?

Stomata

300

Why are leaves usually broad and flat?

Increased surface area for sun exposure

400

This structure is responsible for reproduction in plants.

Flower

400

What two properties of water describe how "sticky" it is?

1. cohesion (sticks to other water molecules)

2. adhesion (sticks to other types of particles)

400

Why would the plant want to close the openings and thus limit gas exchange?

To prevent water loss on hot days.
400

What important function do pollinators help plants do?

Reproduction

500

This structure has both "male" parts and "female" parts.

Flower

500

What 3 processes are responsible for transporting water from the soil to the leaves?

1. root pressure

2. capillary action

3. transpiration

500

What structures control the openings in the leaves?

Guard cells

500

Why do plants need nutrients like nitrogen and phosphorus from the soil?

To produce proteins and nucleic acids (DNA/RNA)