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Assign Yourself: Plant Structure PracticeDo Now:1. What are the parts of a virus?2. How is a virus different from an animal cell or bacterial cell?3. Which of these is caused by viruses:HIVInfluenzaColdMosiac DiseaseBacterial InfectionAIDSChicken Pox

Plant Structure

What are the main parts of a plant?

Plants have 3 main parts: roots, stem, and leaves

How does water travel through a plant?

Roots take in water from the ground.Water travels up the plant through tubes called xylem.Xylem carries water to the leaves, where it is used for photosynthesis.

Processing Piece:Draw a picture showing how water travels through a plant.

How do nutrients like glucose travel through a plant?

Leaves make glucose during photosynthesis.Glucose (and other nutrients) travels down the plant through tubes called phloem.Phloem carries glucose to all cells in the plant, where it is used to make ATP (energy) in the mitochondria.

Processing Piece:Draw a picture showing how glucose travels through a plant.

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What is vascular tissue?

Vascular tissue = xylem and phloemVascular tissue is what carries water and nutrients through the body of a plant.

Processing Piece: What body system in the human body has a similar function?

How do plants let in CO2 and get rid of O2 (a waste product)?

Plants have stomata (little holes on the bottom of their leaves) where they let CO2 in and let O2 (a waste product) out.

Processing Piece:Which TWO body systems have a similar function?

What is transpiration?When a plant loses water through its stomata; water can turn into water vapor (a gas) and go out from the leaf into the air.

Processing Piece:Write transpiration and draw a picture to illustrate what it means.

How does a plant prevent transpiration?1) Plants prevent transpiration by closing their stomata when they start to dry out.If a plant becomes too dry, the guard cells close the stomata to keep the water inside.2) Leaves are covered by a thin layer of wax called a cuticle that stops air from getting out.

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Processing Piece:Label the vascular tissue, xylem and phloem, stomata, guard cells, and cuticle in the leaf cell below.

Exit Ticket:What do xylem and phloem cells do?What is transpiration?What are 2 things plants do to prevent transpiration?

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