The vacuole occupies 70-90% of cell of plant protoplasm yet we say that in plant cell nucleus is the largest cell organelle followed by plastids followed by mitochondria. Why is that?

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Solution

Dear Student

Term organelle means a tiny cellular structure that performs specific functions within a cell.

Vacuoles are storage bubbles found in cells. They are found in both animal and plant cells. Vacuoles store food or some other nutrients they do not perform any specialised functions. Hence, they do not fit under the category of organelle.

That is why, nucleus is considered to be the largest organelle.

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Similar questions

Q. The right statement among the following related to cell organelle in a cell is
(A) Plastids without colouring pigment are more in anima cells.
(B) Mitochondria are more in number in muscle cells of animals.
(C) Vacuoles are more in plant cell.

Q. Assertion :In a mature plant cell, the nucleus and cell organelles are pushed against the cell wall. Reason: The plant cell have single and large central vacuole which occupies 50-90% of the cell volume.

Match the following

nucleus. Cell wall

plastid Vacuole

plant cell Nucleolus

cytoplasm Chlorophyll

eukaryotes. Pseudopodia

Nuclear membrane

Choose the right word to fill in the blanks.

(a) The ………… is an organelle found only in plant cells.

1. ribosomes 2. mitochondria 3.plastids 4. nucleus

(b) Chromosomes are found in the organelle called ………… .

1. plastids 2. mitochondria 3.nucleus 4. Golgi body

1. plant 2. yeast 3.muscle 4. nerve

DIRECTIONS: On the basis of following diagram/picture answer the questions given below:

Identify the parts labelled P, Q and R in the diagram of a root hair, shown below.

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