Leaf Structure and Photosynthesis

The xylem and phloem together are know as

• vascular bundles.

• the mesophyll.

• stomates.

• guard cells.

Tags

NGSS.MS-LS2-3

The guards cells are located in the

• lower epidermis.

• upper epidermis.

• cuticle.

• palisades layer.

Tags

NGSS.MS-LS1-2

Stomates have multiple functions. Select the two answers that best describe what stomates do.

• allow carbon dioxide into the leaf

• allow oxygen out of the leaf

• allow sunlight into the leaf

• allow sugars out of the leaf

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which cells give room for gas exchange between the palisade tissue cells and the stomata?

• Xylem

• Phloem

• Epidermis

• Spongy mesophyll

Tags

NGSS.MS-LS1-6

The function of the cuticle is

• to prevent water from evaporating from the leaf.

• to allow for gas exchange at the top of the leaf.

• to transport water and dissolved minerals.

• to transport dissolved sugars.

Sugars in a plant are transported in these vascular tissues.

• xylem

• phloem

• bundle sheath

• stomata

How does most of the water needed by the plant get into its leaves?

• It enters through the stomata

• The roots absorb it and then it travels up the stem

• It's made during a chemical reaction in the leaf

• The flowers capture water and deliver it to the leaves

Which statement about photosynthesis is correct?

• Plants get the energy they need for photosynthesis from water.

• Plants get the energy they need for photosynthesis from soil.

• Plants get the energy they need for photosynthesis from sunlight.

• Plants do not require energy to perform photosynthesis.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In which organelle (part of the cell) does photosynthesis take place?

• mitochondria

• chloroplast

• nucleus

• cell membrane

Tags

NGSS.MS-LS1-6

Which of the following is the correct equation for PHOTOSYNTHESIS?

• light + carbon dioxide + water --> glucose + oxygen

• carbon dioxide + sugar + water --> oxygen + light

• oxygen + light + water --> carbon dioxide + sugar

• carbon dioxide + oxygen + water --> Light+ Sugar

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7