GENERAL HISTOLOGY

INTRODUCTION

CELL ORGANELLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The outermost layer of a plant cell and animal cell is ____
A
Plant cell-cell membrane, animal cell-cell wall
B
Plant cell-cell wall; animal cell-cell membrane
C
Plant and animal cell-cell wall
D
Plant and animal cell-cell membrane
Explanation: 

Detailed explanation-1: -Plasma membrane is the outermost protective layer in cells of all plants and animals.

Detailed explanation-2: -The epidermis is the protective outer layer of clonally related cells covering all plant organs. It is composed of a number of specialised cell types which differentiate from the basal epidermal cell in adaptively significant frequencies and patterns.

Detailed explanation-3: -The Plasma Membrane-A Cell’s Protective Coat. The outer lining of a eukaryotic cell is called the plasma membrane. This membrane serves to separate and protect a cell from its surrounding environment and is made mostly from a double layer of proteins and lipids, fat-like molecules.

Detailed explanation-4: -The outermost layer of a cell membrane is the middle lamella and hence it is also said to being the outermost membrane of a cell. It is made up of calcium and magnesium pectate.

Detailed explanation-5: -Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape. Animal cells simply have a cell membrane, but no cell wall.

There is 1 question to complete.