P S Verma and V K Agarwal solutions for Biology Part 3 [English] Class 9 chapter 1 - The Fundamental Unit of Life : Cell [Latest edition]

What is a ‘cell’?

What is a prokaryotic cell?

What is a eukaryotic cell?

Who coined the term “cell” ?

Name the book in which Robert Hooke published his work.

Give One Word Answers.

Name the scientist who first studied living cell.

Name two factors on which shape of the cell depends.

Name the smallest cell.

Name the largest cell.

Name the longest cell in the human body.

How many cells are present in human body?

Name the structure from which all multicellular organisms develop.

Give two examples of prokaryotic cells?

Give one example of unicellular organism.

Give one example of multicellular organism.

Who proposed the "Cell theory"?

What is a light microscope?

What is electron microscope?

Is the plasma membrane living or dead?

What is plasma mebrane?

Define the cell.

What is protoplasm?

Name the biomolecules present in plasma membrane.

What is meant by selectively permeable membrane?

What type of organization is found in the plasma membrane?

Define diffusion.

What is osmosis?

What would happen if the plasma membrane ruptures or breaks down?

What is the main function of plasma membrane?

What is endosmosis?

What is exosmosis?

Define hypertonic solution.

Define the following term:

Hypotonic solution

Define isotonic solutions.

What is endocytosis?

What is exocytosis?

Write down names of three types of endocytosis.

What is Active transport?

Is the plant cell wall living or dead?

Name the two organelles in a plant cell that contain their own genetic material and ribosomes.

Name the following:

Kitchen of a cell

Name the following:

Power house of cell

What is the chemical composition of cell wall in plants and fungi respectively?

What is the main function of the following organelles?

Ribosome

What is the main function of the following organelles?

Cell wall

Name the cell organelle in which following structures is present:

Cristae

Name the cell organelle in which following structure is present:

Stroma

Name the cell organelle in which following structure is present:

Centriole

Name the cell organelle in which following structure is present:

Chromosome

What is the main function of the following organelles?

Golgi bodies

What is the main function of the following organelles?

Vacuole

What cell organelle is responsible for release of energy as ATP?

What is the full form of ATP?

Name the nucleic acids that are present in an animal cell.

Do the plant cells contain centriole?

Write main differences between plant and animal cells.

 Distinguish between prokaryotic and enkaryotic cells

Write down differences between organ and organelle.

Write down differences between nucleus and nucleoid

Differences between light microscope and electron microscope.

Give a brief account of discovery of the cell.

Describe the proteins of plasma membrane

Enumerate functions of plasma membrane.

Give an example of diffusion across plasma membrane.

Set up an experiment to demonstrate osmosis.

Write down the differences between diffusion and osmosis.

Write a note on endocytosis.

What would happen when eukaryotic cells are placed in hypotonic solutions?

What would happen when eukaryotic cells are placed in hypertonic solutions?

What would happen when eukaryotic cells are placed in isotonic solutions?

Name the Following:

Smallest Cell Organelle

Name the Following:

Largest Cell Organelle

Name the Following:

ER studded with ribosomes

Name the following:

Functional segments of the DNA molecule

Distinguish between the following:

Chromoplast and chloroplast

Distinguish between the following:

Ribosome and centrosome

Write main differences between plant and animal cells.

What will happen in a cell if its nucleus is removed? Give reasons in support of your answer.

Explain why do spinach look green, papaya yellow and edible part of water melon red?

Write Down Two Main Functions of Endoplasmic Reticulum.

Write down two main functions of Lysosome.

Name the following.

The cell organelle which synthesizes protein.

Name the following.

The type of plastid which stores food.

"Lysosomes are known as suicide bags". Why?

Define the term Cell inclusions.

Define the following term: 

Cytosol

Define the following term:

Protoplasm

Define the following term:

Nucleoplasm

Where do the ribosomes get synthesized?

Write short note on

Mitochondria

Write short note on

Plastids

Write names of cell organelles.

What are three main functional regions of the cell?

What is the location of following in the cell:

Chromatin

What is the location of following in the cell:

Chromosome

What is the location of following in the cell:

Tonoplast

What is the location of following in the cell:

Nucleolus

What are the genes?

Where are genes located in the cell?

Lysosomes are also called digestive bags. Why?

Which organelle is the "power plant" of eukaryotic cell. Write in brief its functions.

What are centrioles?

Write about centrioles function.

Where do lipids and proteins constituting the plasma membrane get synthesised?

Draw a well labelled diagram of typical prokaryotic cell?

What does the term plasmolysed mean when used to describe a cell?

Describe with a diagram the fluid mosaic organisation of the plasma membrane.

Draw a well labelled diagram of animal cell and mention one function of the main cell organelles.

Give an illustrated account of nucleus.

Write short note on the following:

Golgi apparatus

Write short note on

Mitochondria

The smallest known cell is ______.

Identify the organelle present only in animal cell.

The cell organelle that has DNA.

Vacuoles ______.

Silver nitrate solution is used to study

Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?

Ribosomes may not be found attached to ______.

Which one is the energy currency in living organisms?

The barrier between the cytoplasm and the outer environment in an animal cell is ______.

Plasmolysis in a plant cell is defined as

Proteins and lipids, essential for building plasma membrane are synthesized by ______.

The matrix of a chloroplast is called ______.

Organisms produce new cells for ______.

The best material for the study of mitosis in laboratory is ______.

New cells originate ______.

A type of cell division, in which daughter cells have half number of chromosomes.

The essential feature of meiosis is ______.

Chromosomes do not occur in pairs in ______.

The outer membrane is absent in ______.

A lysosome is called a “suicidal bag” because it ______.

A nucleoid is found in ______.

Chromosomes are made up of

Lysosome arises from

Cell inclusions are ______.

Which of these is wrongly matched?

What will happen if chloroplast is taken out of the cell and illuminated?

1. Identify the figure given alongside.
2. Label X and Y.
3. What is the function of X?

1. Identify A- and B-cells.
2. What will happen if B-cells are kept in hypotonic solution?
3. What will happen if A cells are kept in hypertonic solution?

What will happen if excess amount of fertilizer is added to a green lawn?

What will happen if salt is added to cut pieces of raw mango?

1. Label X and Y.
2. What is the function of X?
3. What is the composition of Y?
4. Identify the above diagram and what is its common name?

1. Label W, X, Y, and Z.
2. What is the covering membrane of X known as?
3. Which of them contain hydrolytic enzymes?
4. Which one of them takes part in storage, modification and packaging of various chemicals?

1. Name the phenomenon which helps fresh water unicellular organisms (e.g., Amoeba) continuously gain water in their bodies. Also name the mechanisms by which these organisms throw out excess of water from their bodies. 
2. Give at least two examples in plants where a similar phenomenon is used to gain water.

The chief role of nucleolus in a nucleus concerns ______.

Ribosomes are attached to ______.

Function of centriole is ______.

Black reaction of Camillo Golgi consisted of staining with ______.

DNA stands for ______.

Which of the plastid imparts red colour to pomegranate?

Cell wall of fungi is made up of ______.

The cell organelle found in prokaryotes as well as eukaryotes is ______.

Viruses do not show characteristics of life outside the living cells as they ______.

The organelle involved in packaging and dispatching the synthesized materials to various destinations inside and outside the cell is ______.

In a non-dividing cell, DNA is present as part of chromatin material which can be seen as ______.

The cell organelle involved in forming complex sugars from simple sugars are

Sap vacuole provides the plant cell ______.

Assertion (A): When plant cells are kept in a hypertonic solution, the protoplast of the cell shrinks.

Reason (R): In plant cells kept in a hypertonic cell promote exosmosis due to which water of cytoplasm (including vacuoles) comes out through plasma membrane.

Assertion (A): Mitotic chromosomes of eukaryotes(plants and animals) are formed as super coiled chromatin.

Reason (R): Chromatin is of two types: euchromatin and heterochromatin.

Assertion (A): Mitochondria of the eukaryotic cells are power houses of the cell, they produce AТР molecule.

Reason (R): Mitochondria have DNA molecule and are autonomous cellular organelles.

Assertion (A): Ribosomes are the factories of cells for protein synthesis.

Reason (R): Building materials of ribosomes are manufactured in nucleolus(RNA) and cytoplasm (proteins).

Assertion (A): Chloroplasts occur in the plant cells and they perform photosynthesis to make food for the plants.

Reason (R): Green pigment chlorophyll is located in the thylakoid membranes of the chloroplast and they are meant for absorbing sunlight.