EVERYDAY SCIENCE

SCIENCE

BOTANY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the leaf structure that is made up of tightly packed cells and makes up the “outer” tissue? It is transparent and allows sunlight to pass through for photosynthesis.
A
Spongy mesophyll
B
Palisade mesophyll
C
Upper epidermis
D
Waxy cuticle
E
Stoma
Explanation: 

Detailed explanation-1: -Cuticle: A waxy layer that prevent water loss by evaporation. The cuticle is transparent and very thin to allow maximum light penetration. Upper Epidermis: A protective layer of cells that produces the cuticle.

Detailed explanation-2: -The palisade parenchyma (also called the palisade mesophyll) aids in photosynthesis and has column-shaped, tightly-packed cells. It may be present in one, two, or three layers.

Detailed explanation-3: -Palisade cells are column-shaped and packed with many chloroplasts . They are arranged closely together so that a lot of light energy can be absorbed.

Detailed explanation-4: -In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.

Detailed explanation-5: -The palisade mesophyll layer is made up of closely-packed, elongated cells located just below the upper epidermis. They contain chloroplasts and carry out most of the photosynthesis.

There is 1 question to complete.