Chapter 8 Cell – The Unit of Life MCQs for Class 11 Biology

Chapter 8 Cell - The Unit of Life MCQs for Class 11 Biology , Chapter 8 Cell - The Unit of Life Notes for Class 11 Biology

Chapter 8 Cell – The Unit of Life MCQs for Class 11 Biology

Here students can practice Chapter 8 Cell – The Unit of Life MCQs for Class 11 Biology. All the MCQs are divided into several sub-pages. Each page has 40 MCQs, for the next page just scroll down and click on the buttons. Also you can practice Class 11 Biology MCQs (Multiple Choice Questions) for other chapters.

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Q 1.: Cell membranes are composed mainly of 

(A) Sugar and proteins

(B) Lipids and proteins

(C) Starch and lipids

(D) Sugar and lipids

Option – (b)

Q 2.: The important barrier between the protoplasm and the outer environment in an animal cell is

(A) Cell wall 

(B) Plasma membrane

(C) Tonoplast

(D) Nuclear membrane

Option – (b)

Q 3.: According to ‘Fluid mosaic model’, plasma membrane is composed of

(A) Cellulose and hemicellulose

(B) Phospholipids and hemicellulose

(C) Phospholipids, extrinsic and intrinsic proteins

(D) Phospholipids and integral proteins

Option – (c)

Q 4.: The scientist who proposed the concept of unit membrane for three-layered structure of lipoprotein was

(A) Seifriz

(B) Buval

(C) Davson and Danielli

(D) Robertson

Option – (d)

Q 5.: The active transport of substances across the membranes is aided by

(A) Electrochemical gradient

(B) Metabolic energy

(C) Osmosis

(D) Diffusion

Option – (b)

Q 6.: The first team of scientists to propose a molecular model of plasma membrane was

(A) Virchow and Hooke

(B) Danielli and Davson

(C) Robertson and Dutrochet

(D) Singer and Nicholson

Option – (b)

Q 7.: The active transport of substances across plasma membrane is enhanced by

(A) Osmosis  


(C) Electrochemical gradient 

(D) Incipient plasmolysis

Option – (b)

Q 8.: Passive transport includes

(A) Osmosis only

(B) Diffusion only

(C) Facilitated diffusion

(D) All of these

Option – (d)

Q 9.: When the relative concentration of water and solutes on either side of the cell membrane is the same, the solution is said to be

(A) Isotonic

(B) Hypotonic

(C) Hypertonic

(D) None of the these

Option – (a)

Q 10.: The hydrostatic pressure that balances and prevents osmotic inflow of water molecules into the concentrated solution across the membrane is called

(A) Turgor pressure

(B) Osmotic pressure

(C) Wall pressure

(D) Suction pressure

Option – (b)

Q 11.: The process for active cellular extrusion from the cell is said to be 

(A) Endocytosis

(B) Phagocytosis

(C) Pinocytosis

(D) Exocytosis

Option – (d)

Q 12.: Shrunken appearance of erythrocytes is called

(A) Plasmolysis

(B) Incipient plasmolysis

(C) Deplasmolysis

(D) Crenation

Option – (d)

Q 13.: which one of the following refers to endocytosis?

(A) Diffusion

(B) Osmosis

(C) Pinocytosis

(D) Carrier

Option – (c)

Q 14.: The protrusions developed by fibroblasts are called

(A) Pseudopodia

(B) Cilia

(C) Ruffles or undulation

(D) Flagella

Option – (c)

Q 15.: Which one of the following maintains continuity between the water ad lipid phases inside and outside the cells?

(A) Cell wall

(B) Lecithin

(C) Cell vacuole

(D) Cell membrane of woody plants

Option – (b)

Q 16.: Two animal cells are interconnected by

(A) Plasmodesmata

(B) Cell wall

(C) Desmosome

(D) Plasma membrane

Option – (c)

Q 17.: The membrane potential of cell favours the

(A) Movement of cations into the cell

(B) Movement of anions into the cell

(C) Action of a proton pump

(D) Action of an electrogenic pump

Option – (a)

Q 18.: A nucleosome is a portion of the chromonema containing 

(A) Only histones 

(B) Both DNA and histones

(C) Only DNA

(D) Both DNA and RNA

Option – (B)

Q 19.: Which one is single membrane cell organelle?

(A) Endoplasmic reticulum

(B) Mitochondria

(C) Lysosomes

(D) Chloroplast

Option – (b)

Q 20.: In which one of the following would you expect to find glyoxysomes?

(A) Endosperm of wheat

(B) Endosperm of castor

(C) Palisade cells in leaf

(D) Root hairs

Option – (b)

Q 21.: Term ‘Basal body’ is associated with the development of

(A) Cilia and flagella

(B) Cell plate

(C) Phragmoplast

(D) kinetochore

Option – (a)

Q 22.: Which one of the following is not a function of vacuole in plant cell?

(A) Storage

(B) Waste disposal

(C) Cell elongation and protection

(D) Production of hydrogen peroxide

Option – (d)

Q 23.: Which is not true about prokaryotes ?

(A) DNA is complexed with histones

(B) Well-developed nucleus absent

(C) Mesosome present

(D) Mitochondria absent

Option – (a)

Q 24.: Robert Hooke thought about the cells that

(A) Something similar to veins and arteries of animals for conducting fluid

(B) Smallest structural unit

(C) Smallest functional unit

(D) Unit of heredity

Option – (a)

Q 25.: Which one of the following enzymes helps in crossing plasma membrane?

(A) Protease

(B) Pepsin

(C) Dehydrogenase

(D) Permease

Option – (d)

Q 26.: The statement omnis cellula e cellula of Rudolf Virchow has been taken from his book

(A) Cellular pathology

(B) Cellular potency 

(C) Micrographia

(D) Scala naturae

Option – (a)

Q 27.: Which one of the following is the site of lipid synthesis?

(A) Rough ER

(B) Smooth ER

(C) Golgi bodies

(D) Ribosome

Option – (b)

Q 28.: Function of rough endoplasmic reticulum is

(A) Fat synthesis

(B) Protein synthesis

(C) Starch synthesis

(D) Autolysis

Option – (b)

Q 29.: Which of the following pairs lack the unit membrane? 

(A) Nucleus and ER

(B) Mitochondria and chloroplast

(C) Ribosome and nucleolus

(D) Golgi body and lysosome

Option – (d)

Q 30.: Which one of the following is not a constituent of cell membrane? 

(A) Cholesterol

(B) Glycolipids

(C) Proline

(D) Phospholipids

Option – (c)

Q 31.: Nucleic acid occurs in

(A) Golgi body

(B) Lysosomes

(C) Cytoplasm

(D) Mitochondria and chloroplast

Option – (d)

Q 32.: The term ‘cytoplasm’ and ‘nucleoplasm’ were given by

(A) Purkinje

(B) Strasburger

(C) Brown

(D) Flemming

Option – (b)

Q 33.: Lipid molecules in plasma membrane are arranged in which manner?

(A) Scattered 

(B) Series

(C) Alternate

(D) Head parallel

Option – (d)

Q 34.: In flagella membrane, which enzyme catalyses ATP activity?

(A) Cytoplasmic dynein

(B) Asconic dynein

(C) Kinesis

(D) Myosin

Option – (b)

Q 35.: Number of protofilament in microtubule is

(A) 13

(B) 12

(C) 5

(D) 10

Option – (a)

Q 36.: Movement of cytoplasm around the vacuole in the cell is

(A) Circulation

(B) Rotation

(C) Somersault

(D) Regulation

Option – (b)

Q 37.: Which of the following techniques, other than microscopy is used for study of cell?

(A) Maceration

(B) Plasmolysis

(C) Chromatography

(D) Autoradiography

Option – (d)

Q 38.: Who developed election microscope for the first time ?

(A) Knoll and Ruska

(B) Rudolf and Kolliker

(C) Robert Hooke

(D) Swanson

Option – (a)

Q 39.: Robert Hooke used the term ‘cell’ in the year

(A) 1650

(B) 1665

(C) 1865

(D) 1960

Option – (b)

Q 40.: ‘Fluid mosaic model’ of cell membrane was given by

(A) Singer and Tatum

(B) Watson

(C) Robertson

(D) Singer and Nicolson

Option – (d)


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We hope that these Chapter 8 Cell – The Unit of Life MCQs for Class 11 Biology helped you in learning new concepts. All questions are based on NCERT syllabus and some of them have been asked in various competitive exams. You can go to the next pages to practice more for Chapter 8 Cell – The Unit of Life MCQs for Class 11 Biology, click on the question range given above.

Also you can practice Class 11 Biology MCQs (Multiple Choice Questions) for other chapters.