GENERAL HISTOLOGY

INTRODUCTION

CELL ORGANELLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The vacuoles in plant cells are different from the vacuoles in animal cells because
A
they are membrane bound
B
plant cell vacuoles are typically larger
C
plant vacuoles store water
D
they hold different types of nutrients
Explanation: 

Detailed explanation-1: -In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance. Sometimes a single vacuole can take up most of the interior space of the plant cell.

Detailed explanation-2: -Plant cells are known to have bigger vacuoles than that of animal cells as they need to store food and water. This is because the plant don’t possess the ability to move freely like that of animals. Thus, they possess large vacuoles as a reservoir in unfavorable conditions.

Detailed explanation-3: -The vacuoles in plant cells are larger than those in the animal cells. The plant vacuoles occupy more than 80% of the volume of the cell. The vacuoles may be one or more in number.

Detailed explanation-4: -The central vacuole can occupy up to 90% of the cellular volume and, differently from intracellular organelles from animal cells such as lysosomes or endosomes, it is easy to isolate. Because of its large dimension (up to 40 m diameter) it can be successfully studied using the classical patch-clamp technique.

Detailed explanation-5: -Plant cells have a cell wall. On the other hand, Animal cells lack a cell wall. However, Plants rely on their cell walls for stability. Plants use chloroplasts to perform photosynthesis, which allows them to produce food, and thus they have it, however, Animal cells lack chloroplasts.

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