Cell: The Unit of Life Questions

Cell theory was formulated by:

The scientist who first observed and described a live cell is:

Chief advantage of multicellularity over unicellular organization is:

Choose the statement which is true for Nucleolus.

Select the feature which is not true for ribosomes.

Choose the correct sequence of layer of cell envelope from outer side to inner side in a bacteria.

Which among the following features (structures) is present in prokaryotic cell but absent in eukaryotes?

Choose the size of typical eukaryotic cell.

In eukaryotic cells, there is extensive compartmentalization of cytoplasm through:

Inclusion body:

Which layer of cell envelope in prokaryotic cell is tough and gives gummy and sticky character?

Which among the following is found only in eukaryotes?

All of the following are forms of mesosomes, except;

Among the following the longest cells are;

Match List-I with List-II. List–I List–II---------------------------------------------------------------(A) Axoneme (I) Forms the core of cilia and flagella(B) Centrosome (II) Disc-shaped structures present on the sides of centromere(C) Kinetochore (

In prokaryotes, ribosomes are associated with the ______ of the cell.

In some bacteria, ______ are known to help attach the bacteria to rocks in streams and also to host tissues.

Given below are two statements: Statement I: Cells differ greatly in size, shape and activities. Statement II: Cells may be disc-like, polygonal, columnar, cuboid, thread-like, or even irregular.

Tonoplast is the membrane of:

Both eukaryotic cilium and flagellum emerge from centriole-like structure called the;

The material of the nucleus stained by the basic dyes was given the name chromatin by;

Given below are two statements: One is labelled Assertion A and the other is labelled Reason R: Assertion A: Several ribosomes may attach to a single mRNA and form a chain called polyribosomes or polysomes. Reason R: The ribosomes of a polysome trans

Human RBCs are about ______ µm in diameter.

Given below are two statements: Statement I: Bacterial cells may be motile or non-motile. Statement II: Bacteria show a range in the number and arrangement of flagella. Choose the correct option:

In chloroplast, chlorophyll pigments are present in:

Depending upon the ease of extraction, membrane proteins are classified as integral and peripheral on the basis of:

The plastid which stores oils is known as:

Which structure performs the function of respiration in bacteria?

Tonoplast in plants is important for:

Endoplasmic reticulum divides the intracellular space into two distinct compartments, luminal and:

Bacillus is a:

Microtubules, microfilaments and intermediate filaments are constituents of:

Given below are two statements: Statement I: Glycocalyx differs in composition and thickness. Statement II: Glycocalyx could be a loose sheath called slime layer or a thick sheath called capsule. Choose the correct option:

Select the incorrect statement with respect to cilia and flagella in eukaryotes:

The cell organelle in animals which is not membrane bound is:

Nuclear pores are the passages through which movement of RNA and protein molecules takes place in:

Mycoplasma lacks:

The nuclear matrix or nucleoplasm contains:

Identify the structure from the following that is mitochondria:

Match List-I with List-II: List–I List–II-----------------------------------------------(A) Leeuwenhoek (I) First saw and described a living cell(B) Robert Brown (II) Presence of cell wall is unique character of plant cells(C) Schleiden (III) Discove

Match List-I with List-II: List–I List–II(A) Metacentric chromosome (I) Middle centromere(B) Sub-metacentric chromosome (II) Centromere slightly away from middle(C) Acrocentric chromosome (III) Centromere close to its end(D) Telocentric chromosome (I

Osmosis is movement of:

Given below are two statements: Assertion (A): Bacteria can be classified into two groups on the basis of differences in their cell envelope staining procedure developed by Gram. Reason (R): Those which take the Gram stain are Gram positive and those

Which of the following is incorrectly matched?

Eukaryotes have 80S, while prokaryotes have 70S ribosomes. Here ‘S’ explains:

In cyanobacteria, pigments containing structures are called:

Given below are two statements: Statement I: Plastids are found in all plant cells. Statement II: Plastids are easily observed under microscope. Choose the correct option:

Which of the following is an inclusion body?

Identify the layer mainly composed of calcium that binds neighbouring plant cells together:

In prokaryotes, resistance to antibiotics is conferred by: