HORTICULTURE SCIENCE
PLANT BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The roots absorb water and minerals and move them up to the stem, while the stem moves food produced in the leaves down to the roots in tiny tubes.
|
|
|
The roots anchor the plants in the soil, and the stem holds the leaves up.
|
|
|
The roots absorb their own water and minerals, while the stem absorbs its water and minerals through the leaves.
|
|
|
The roots lose water vapor to the soil, and the stem loses water vapor through the leaves.
|
Detailed explanation-1: -The water is absorbed by the root hair and undergoes cell to cell movement by osmosis until it reaches the xylem. This water is then transported through the xylem vessels to the leaves and is evaporated by the process of transpiration. The xylem is also composed of elongated cells like the phloem .
Detailed explanation-2: -Plant stems have some very special cells called xylem. These cells form long thin tubes that run from the roots up the stems to the leaves. Their job is to carry water upward from the roots to every part of a plant.
Detailed explanation-3: -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.