GENERAL HISTOLOGY

INTRODUCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is another name for a palisade cell?
A
Egg cell
B
Sperm Cell
C
Leaf cell
D
Animal cell
Explanation: 

Detailed explanation-1: -In simpler terms, they are known as leaf cells. Palisade means “stake” in Latin, they are vertically elongated and are stacked side by side, a different shape from the spongy mesophyll cells beneath them. The chloroplasts in these cells absorb a major portion of the light energy used by the leaf.

Detailed explanation-2: -It is the primary area of photosynthesis as it contains chlorophyll. It is also called as palisade mesophyll.

Detailed explanation-3: -In dicotyledonous leaves there are two types of mesophyll cell; palisade mesophyll and spongy mesophyll. Palisade mesophyll cells are elongate and form a layer beneath the upper epidermis, whereas spongy mesophyll cells are internal to the lower epidermis.

Detailed explanation-4: -The palisade mesophyll layer is where most of the photosynthesis occurs in the leaf. The palisade cells contain a lot of chloroplasts to help them perform this photosynthesis. The palisade cells are closely packed together to maximize light absorption.

Detailed explanation-5: -The palisade mesophyll is generally located below the upper epidermis and is composed of cylindrically shaped cells oriented perpendicular to the leaf surface.

There is 1 question to complete.