5th Grade Ch. 4 Lesson 1 How do Leaves Help a Plant

Ch. 4 Lesson 1How do Leaves Help a Plant?

Does the direction seeds are planted affect the direction the roots grow?

• Collect information- seeds need water, roots need nutrients, roots act like straws sucking up water, roots anchor a plant

• Hypothesis- I think that ____________• Procedure- See pgs. 114-115• Observations-

leaves• make most of plant’s food

• are organs - made of cells & tissues

vessel tissue

• type of tissue that carries food & water to the plant

epidermis

outer layer

vessel tissue

stoma

photosynthesis• process plants use to make sugar (food)

• carbon dioxide + water + sunlight energy oxygen + sugar

Sugar

cellular respiration•use oxygen with food to get energy for growth, repairs & reproduction

YouTube video-Chloroplasts

chloroplasts - give plants their green color

- where photosynthesis happens

starch• plants join

many sugars

• for long term storage of food

cellulose

• formed when 1,000’s of sugars combine

• makes plants cell walls

Scanning electron micrograph of wood cellulose

Photosynthesis song