Leaf Structure and Function

Small openings called ______ are found on the underside of leaves and allow gases to enter or leave the plant cells.

• Phloem
• Chloroplasts
• Xylem
• Stomata

Vascular tissue that transports water and minerals UPWARDS from a plant's roots is known as ______.

• Cuticle
• Phloem
• Stomata
• Xylem

What is the TISSUE that carries food from a plant's leaves to its cells?

• xylem
• phloem
• photsynthesis
• vascular tissue

What is the PROCESS by which plants make food?

• xylem
• phloem
• germinate
• photosynthesis 

Tags

NGSS.MS-LS1-6

What two things do plants need to do the PROCESS of photosynthesis?

• Carbon dioxide & water
• Oxygen & water
• Sugar & water
• Carbon dioxide & Sugar

Tags

NGSS.MS-LS1-6

Why do leaves look green?

• it reflects all colors but green
• it reflects yellow and blue
• it reflects green light
• it absorbs green light

Tags

NGSS.MS-LS1-6

What is the function of the waxy cuticle on leaves?

• To stop rain entering the leaf

• To prevent excess loss of water from the leaf

• To reflect sunlight

• To allow gas exchange

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How is the spongy mesophyll adapted for gas exchange?

• It is close to the palisade cells

• It contains chloroplasts

• It has air spaces and a large surface area

• It contains lots of small cells

Tags

NGSS.MS-LS1-2

Where in a leaf does photosynthesis occur?

• In chloroplasts

• In palisade cells

• In spongy mesophyll cells

• All of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-2

Why are palisade cells arranged at the top of the leaf?

• So that they are far away from the stomata

• So that sugars made on photosynthesis can be transported to the phloem

• So that chloroplasts are concentrated in one place

• So that chloroplasts receive the maximum amount of sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-2

NGSS.MS-LS2-3