Chapter 5 The Fundamental Unit Of Life MCQs for Class 9 Science

Chapter 5 The Fundamental Unit Of Life MCQs for Class 9 Science

Here students can practice Chapter 5 The Fundamental Unit Of Life MCQs for Class 9 Science. 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 9 Science MCQs (Multiple Choice Questions) for other chapters.

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Q 1.: Chemically cellulose is a

(A) Lipid

(B) Protein

(C) Polysaccharide

(D) Amino acid

Option – (c)

Q 2.: Cell theory was modified by

(A) Robert Brown

(B) Huxley

(C) Rudolf Virchow

(D) Purkinje

Option – (d)

Q 3.: The structural or functional unit of life is

(A) Tissue

(B) Cell

(C) Organ

(D) Organ system

Option – (b)

Q 4.: The outer most layer of human cheek cells is

(A) Cytoplasm

(B) Plasma membrane

(C) Cell wall

(D) Nuclear membrane

Option – (b)

Q 5.: In plants cell, cell wall is

(A) Dynamic and living

(B) Rigid and nonliving

(C) Dynamic and nonliving

(D) Rigid and living

Option – (b)

Q 6.: Nucleolus is seat of

(A) mRNA synthesis

(B) Ribosome synthesis

(C) Protein synthesis

(D) ATP synthesis

Option – (b)

Q 7.: Human RBCs are placed in a solution. They swell up and finally rupture. The solution is

(A) Isotonic

(B) Hypotonic

(C) Hypertonic

(D) None of these

Option – (b)

Q 8.: Cell wall in plant cells is made of

(A) Starch

(B) Glycogen

(C) Cellulose

(D) Chitin

Option – (c)

Q 9.: The outermost covering of a plant cell is

(A) Plasma membrane

(B) Nuclear membrane

(C) Vacuole membrane

(D) Cell wall

Option – (d)

Q 10.: The organelle not present in human cheek cells is

(A) Nucleus

(B) Plasma membrane

(C) Mitochondria

(D) Chloroplast

Option – (d)

Q 11.: This provides mechanical support to the cell

(A) Cilia

(B) Lysosome

(C) Endoplasmic reticulum

(D) Golgi complex

Option – (c)

Q 12.: Cell secretion is carried out by 

(A) Nucleolus

(B) Plastids

(C) Golgi complex

(D) Endoplasmic reticulum

Option – (c)

Q 13.: This forms the physical basis of life

(A) Ectoplasm

(B) Protoplasm

(C) Nucleoplasm

(D) Endoplasm

Option – (b)

Q 14.: Protoplasm is

(A) True solution

(B) Suspension

(C) Colloidal solution

(D) none of these

Option – (c)

Q 15.: ‘Suicide bag’ in a cell is 

(A) Lysosome

(B) Ribosome

(C) Contractile vacuole

(D) Nucleus

Option – (a)

Q 16.: Golgi complex is absent in

(A) Liver cells

(B) Yeast

(C) Higher plants

(D) Blue-green algae

Option – (d)

Q 17.: Cell vacuole contains

(A) Water

(B) Cytoplasm

(C) Metabolic wastes

(D) Water and dissolved substances

Option – (d)

Q 18.: Autolysis is connected with

(A) Ribosome

(B) Lysosome

(C) kinetosome

(D) Spherosome

Option – (b)

Q 19.: Lysosomes are reservoir of  

(A) RNA

(B) Fat

(C) Hydrolytic enzymes

(D) Secretory glycoprotein

Option – (c)

Q 20.: Mitochondria are seat of

(A) ATP formation

(B) Electron transport

(C) Cellular respiration

(D) All of these

Option – (a)

Q 21.: _______________ is called the energy currency of the cell

(A) Endoplasmic reticulum

(B) Oxygen

(C) ATP

(D) Mitochondria

Option – (c)

Q 22.: __________________ is called the powerhouse of the cell

(A) Mitochondria

(B) ATP

(C) Lysosome

(D) Red blood cells

Option – (a)

Q 23.: Which of the following statements is incorrect?

(A) Cytoplasm is also known as protoplasm

(B) Lysosomes are known as the suicide bags of the cell

(C) Mitochondria has its own DNA

(D) All of the above are incorrect

Option – (a)

Q 24.: Which of the following is not a function of the vacuole in plants?

(A) They store toxic metabolic wastes

(B) They help with the process of cell division

(C) They help to maintain turgidity

(D) They provides structural support

Option – (b)

Q 25.: Where are the essential proteins and lipids required for cell membrane, manufactured?

(A) Lysosome

(B) Chromosomes

(C) Endoplasmic reticulum

(D) Mitochondria

Option – (c)

Q 26.: Which of the following can be made into crystals?

(A) A bacterium

(B) An amoeba

(C) A virus

(D) A sperm

Option – (c)

Q 27.: Chromosome are made up of

(A) DNA 

(B) Protein

(C) DNA and Protein

(D) RNA

Option – (c)

Q 28.: Plasmolysis in a plant cell is defined as

(A) Breakdown (lysis) of plasma membrane in hypotonie medium

(B) Shrinkage cytoplasm in hypertonic medium

(C) Shrinkage of nucleoplasm

(D) None of them

Option – (b)

Q 29.: Which of the following are covered by a single membrane?

(A) Mitochondria

(B) Vacuole

(C) Lysosome

(D) Plastid

Option – (b)

Q 30.: Which cell organelle plays a crucial role in detoxifring  many poisons and drugs in a cell?

(A) Golgi apparatus

(B) Lysosomes

(C) Smooth endoplasmic reticulum

(D) Vacuoles

Option – (c)

Q 31.: Vacuoles provide:

(A) Rigidity

(B) Turgidity

(C) Shape

(D) Both (a) and (b) 

Option – (b)

Q 32.: The process which occurs when dry raisins are soaked in water is called_____________.

(A) Osmosis

(B) Endosmosis

(C) Endocytosis

(D) Diffusion

Option – (b)

Q 33.: Before scraping the inner side of cheek to prepare a temporary mount of cheek cell, the mouth is rinsed to:

(A) Remove food particles

(B) Make it alkaline

(C) Avoid Injury

(D) Make it acidic

Option – (a)

Q 34.: An undefined nuclear region of prokaryotes is known as_________

(A) Nucleus

(B) Nucleoid

(C) Nucleolus

(D) Nucleic acid

Option – (b)

Q 35.: Which one of the following has their own DNA?

(A) Vacuole

(B) Mitochondria

(C) Golgi bodies

(D) Ribosome

Option – (a)

Q 36.: A cover slip is placed over the specimen to:

(A) Prevent the tissue from drying

(B) Prevent glycerine from leaking out

(C) Remove extra strain and water

(D) Crush the cells in order to see the organelles clearly

Option – (d)

Q 37.: While observing a human cheek cell, under a microscope, what students will not observe

(A) Nucleolus

(B) Mitochondria

(C) Nucleus

(D) Chloroplast

Option – (a)

Q 38.: A cell organelle that is not surrounded by a membrane is the _____.

(A) Chloroplast 

(B) Ribosome

(C) Endoplasmic reticulum

(D) Golgi apparatus

Option – (b)

Q 39.: Gaseous exchange in cells takes place by:

(A) Exocytosis

(B) Diffusion

(C) Osmosis

(D) Endocytosis

Option – (b)

Q 40.: Identify the common feature of mitochondria and plastids?

(A) Ability to produce ATP

(B) Presence of DNA and ribosomes

(C) Presence of matrix called stroma

(D) Deeply folded inner membrane

Option – (b)

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We hope that these Chapter 5 The Fundamental Unit Of Life MCQs for Class 9 Science 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 5 The Fundamental Unit Of Life MCQs for Class 9 Science, click on the question range given above.

Also you can practice Class 9 Science MCQs (Multiple Choice Questions) for other chapters.