Structure of the leaf(SSN)

The waxy layer of the leaf that covers the leaf, is known as the what?as the what?

• guard cell

• stoma

• cuticle

• vein

What is letter "D" pointing to?

answer choices

• palisade mesophyll

• upper epidermis

• spongy mesophyll

• bundle sheath

Tags

NGSS.MS-LS1-2

Which one of the following has the largest floating leaves

• Banana

• Victoria

• Nelumbo

• Date Palm

Main function of leaf is

• Transpiration

• Exchange of gases

• Photosynthesis

• Cooling

Tags

NGSS.MS-LS1-6

Most of the chloroplast cells are found in the

• upper epidermis

• pallisade mesophyll layer

• lower epidermis

• stomata

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

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

Where does gas exchange occur within the plant?

• stem

• leaf

• flower

• root

Tags

NGSS.MS-LS1-6

Why do leaves need a large surface area?

• To absorb as much water as possible.

• To absorb as much sunlight as possible.

• To absorb as much food as possible.

• To absorb as much chlorophyll as possible..

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3