Form 3

The opening of closing of stomata is controlled by the...

• guard cells

• palisade cells

• lower epidermis cells

• phloem

Tags

NGSS.MS-LS1-6

During photosynthesis, this substance enter the leaf through the stomata.

• water

• glucose

• carbon dioxide

• oxygen

Tags

NGSS.MS-LS1-6

Choose the factors which can affect the rate of transpiration.

• temperature

• humidity

• light intensity

• air movement

The diagram shows the arrangement of vascular bundle found in..

• root

• leaf

• stem

• flower

Tags

NGSS.MS-LS2-3

The function of phloem is to...

• transport minerals from the root to the leaves

• transport sucrose formed during photosynthesis from the leaves to other parts of the plant

• transport glucose formed during photosynthesis from the leaves to other parts of the plant

• transport sucrose formed during photosynthesis from the root to other parts of the plant

Tags

NGSS.MS-LS2-3

the diagram shows a cross section of a leaf. What is X?

• Phloem

• stoma

• xylem

• guard cells

Tags

NGSS.MS-LS1-6

The diagram shows a stem which the phloem has been removed. What will happen to the plant after 2 weeks?

• The plant die

• The upper part of the stem becomes swollen

• The lower part of the stem becomes swollen

• The root becomes swollen

Tags

NGSS.MS-LS1-5

A few days after the experiment, the plant can still carry out photosynthesis. Why?

• The new phloem is produced

• The xylem can still transports water and mineral

• Photosynthesis is not affected at all

• The plant can survives without phloem

Tags

NGSS.MS-LS1-6

The process by which plants lose water vapor through their leaves is called...

• Transpiration

• Respiration

• Photosynthesis

• Osmosis

Tags

NGSS.MS-LS2-1

Which of the following is a product of photosynthesis?

• Oxygen

• Carbon Dioxide

• Water

• Nitrogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3