Leaf structure

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

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

• Epidermis
• Vascular tissue
• Guard cells
• Spongy mesophyll

Which structure helps prevent water loss and protects the leaf?

• Palisades mesophyll
• Spongy mesophyll
• Vascular tissue
• Cuticle

What is letter "A" pointing to?

• cuticle

• upper epidermis

• lower epidermis

• palisade mesophyll

Tags

NGSS.MS-LS1-2

What is letter "D" pointing to?

• upper epidermis

• palisade mesophyll

• spongy mesophyll

• bundle sheath

Tags

NGSS.MS-LS1-2

Which of the following is pointing to the "guard cell"?

• B

• C

• D

• E

Tags

NGSS.MS-LS1-2

Most of the chloroplast cells are found in the

• upper epidermis
• pallisade mesophyll layer
• lower epidermis
• stomata

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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

• xylem 
• phloem
• stoma
• guard cell

What is photosynthesis?

• Water loss by a plant.
• When a photographer takes a photo.
• To get your pictures from the photo lab.
• The process in which plants make their food.

Tags

NGSS.MS-LS1-6

Which organelle from the plant cell is primarily responsible for converting sunlight to energy?

• Mitochondria
• Nucleus
• Vacuole
• Chloroplast

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6