HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which plant structure moves materials between leaves and roots?
A
roots
B
leaves
C
stems
D
photosynthesis
Explanation: 

Detailed explanation-1: -The xylem consists of tracheids and vessels, which transport water and minerals to the leaves. The phloem transports the photosynthetic products from the leaf to the other parts of the plant.

Detailed explanation-2: -Stems carry water and nutrients taken up by the roots to the leaves. Then the food produced by the leaves moves to other parts of the plant. The cells that do this work are called the xylem cells.

Detailed explanation-3: -They pass from cell to cell by diffusion or active transport. They pass up the xylem in the transpiration stream. Sugar passes by diffusion from leaf cells to the phloem. It passes from the leaves to the stem and root via the phloem.

Detailed explanation-4: -The structures within roots, stems, and leaves are made up of three tissue systems: dermal, vascular, and ground tissue. The dermal tissue system is the “skin” or an outer protective covering. The outer layer, called the epidermis, is covered with a cuticle that prevents water loss.

Detailed explanation-5: -Xylem transports water, minerals, and nutrients from the soil to all the plant parts. There are two types of “transport” tissues in plants-xylem and phloem. Water and solutes are transported by the xylem from the roots to the leaves, and food is transported from the leaves to the rest of the plant by the phloem.

There is 1 question to complete.