What is the name of the clear layer of cells (H) on top of the leaf?

• Cuticle

• Air space

• Guard cell

• Upper epidermis

Tags

NGSS.MS-LS1-2

The leaf has a shiny, waxy cuticle around it to

• increase the rate of photosynthesis
• attract more light
• control water loss
• stop carbon dioxide and oxygen gases escaping

What is the name of cells (part D) that surround the pores of a leaf?

• Palisade cells

• Guard cell

• Spongy layer

• Lower epidermis

The role of the guard cell is to

• help control the temperature of the plant
• control how much water enters the leaf
• control how much glucose is stored
• control the movement of water vapour & gases 

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If guard cells are swollen with water, then the are more likely to be ... 

• OPEN with stomata
• CLOSED with no stomata
• Cannot tell - the water amount doesn't affect it at all.

Tags

NGSS.MS-LS2-1

What is the name of the elongated, packed cells (part G) directly under the upper epidermis?

• Palisade cells

• Guard cell

• Spongy layer

• Lower epidermis

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

carries water and minerals from roots to other parts of the plant

• xylem 
• phloem
• stoma
• guard cell

Which cells of a leaf undergo the MOST photosynthesis?

• Guard cells
• Palisade cells
• Epidermal cells
• Cells in the spongy layer

Tags

NGSS.MS-LS1-6

Most plants appear green because chlorophyll

• absorbs green light.
• absorbs violet light.
• reflects green light.
• does not absorb violet light.

Tags

NGSS.MS-LS1-6

What is chlorophyll's main function?

• to make the plant a vegetable
• to blend into their environment
• to capture energy from sunlight for photosynthesis
• to help prevent water loss

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3