HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What substance is transported in the xylem?
A
Carbon dioxide and oxygen
B
Sugars made in the leaves
C
Hormones
D
Water
Explanation: 

Detailed explanation-1: -The xylem vessels and tracheids transport water and minerals from the roots to all parts of the plants.

Detailed explanation-2: -Continuous transpiration occurring in all of the leaves of a plant creates a negative pressure in the water column (xylem). This exerts an upward pull on the water column, called transpiration pull. And thus, the water present in the xylem column transports up to the tip of the stem, leaves, etc.

Detailed explanation-3: -Xylem transports water in plants. Water is absorbed from the soil through root hair cells. Water moves by osmosis from root cell to root cell until it reaches the xylem. It is transported through the xylem vessels up the stem to the leaves.

There is 1 question to complete.