DENDROLOGY

TREE PHYSIOLOGY

PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which two substances do most plants absorb through their root hair cell?
A
soil and water
B
water and minerals
C
minerals and carbon dioxide
D
light and oxygen
Explanation: 

Detailed explanation-1: -The root hairs small diameter and greater length makes sure that they have a large surface area over which to absorb water and mineral salts. Water fills the vacuole of the root hair cell.

Detailed explanation-2: -Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption.

Detailed explanation-3: -Plants can absorb inorganic nutrients and water through their root system, and carbon dioxide from the environment.

Detailed explanation-4: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

Detailed explanation-5: -Root hairs are long, thin, single cell extensions from the epidermis. They profoundly increase the overall root surface area and connection with the soil and are responsible for absorbing water and mineral nutrients.

There is 1 question to complete.