GENERAL HISTOLOGY

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INTRODUCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Students observed cells under the microscope. They observed that the cells had a cell wall, cell membrane, nucleus, and many chloroplasts. Which observation helps students identify the type of cell observed?
A
The presence of a nucleus means the cells are from a plant.
B
The presence of a cell membrane means that the cells are from an animal.
C
The presence of chloroplasts means that the cells are from a plant.
D
The presence of a cell wall means that the cells are from an animal.
Explanation: 

Detailed explanation-1: -The presence of chloroplasts means that the cells are from a plant . This statement proves that chloroplasts are present only in plants and hence the cells the students have found must have been plant cells .

Detailed explanation-2: -Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.

Detailed explanation-3: -The cell wall, nucleus, vacuoles, mitochondria, endoplasmic reticulum, Golgi apparatus, and ribosomes are easily visible in this transmission electron micrograph.

Detailed explanation-4: -Besides the presence of chloroplasts, another major difference between plant and animal cells is the presence of a cell wall. The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress.

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