Plants Biology

The important gases, carbon dioxide and oxygen, enter and leave the leaf through the

• upper epidermis

• phloem

• stomata

• guard cells

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which structures open and close stomata to allow gas exchange but prevent water loss in leaves?

• Epidermis

• Vascular tissue

• Guard cells

• Spongy mesophyll

Tags

NGSS.MS-LS1-6

Which structure helps prevent water loss and protects the leaf?

• Palisades mesophyll

• Spongy mesophyll

• Vascular tissue

• Cuticle

Choose the correct combo-

• xylem-water, phloem -sugar

• xylem- sugar, phloem -water

When the guard cells are filled with water, the stomata is

• open

• closed

Gasses are exchanged in the leaf through the

• guard cells

• roots

• vascular bundles

• stomata

Tags

NGSS.MS-LS1-6

& #5 - outermost layer of cells; provides protection from outside elements.

• Epidermal cells

• Palisade cells

• Phloem cells

• Waxy cuticle

Tags

NGSS.MS-LS1-2

layer of irregular cells with space in between the cells

• Pallisade mesophyll

• Phloem

• Spongy mesophyll

• Xylem

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

The outermost layer of CELLS of the leaf is the

• cuticle

• epidermis

• spongy mesophyll

• bundle sheath

What two products does a plant make during photosynthesis?

• Water and Glucose

• Oxygen and Glucose

• Oxygen and Water

• CO₂ and Glucose

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3