Ques 1. Which of the following given options is the plant cell wall mainly consisting of?
(a) Lipids
(b) Vitamin
(c) Cellulose
(d) Protein

Ans. (c) Cellulose
Explanation – The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicelluloses, and pectin.

Ques 2. which of the following given options does not have a cell wall?
(a) Euglena
(b) Paramecium
(c) Gonyaulax
(d) Mycoplasma

Ans. (d) Mycoplasma
Explanation – Mycoplasma is a genus of bacteria that lack a cell wall around their cell membranes.

Ques 3. Which organelles in the cell, then the nucleus, contain DNA?
(a) Centriole
(b) Golgi  Apparatus
(c) Lysosome
(d) Mitochondria

Ans. (d)  Mitochondria
Explanation – Mitochondria contain DNA other than the nucleus. Mitochondria are thought to be the parasites in the eukaryotic cells that are inside the latter as a result of the endo-symbolic event that took place earlier in the evolution.

Ques 4. Which of the following given options, the cellular and molecular control of programmed cell death called?
(a) Apoptosis
(b) Ageing
(c) Degeneration
(d) Necrosis

Ans. (a) Apoptosis
Explanation – Apoptosis is a form of programmed cell death that occurs in multicellular organisms.

Ques 5. Which of the following function does not takes place in absence of ribosome in a cell?
(a) Respiration 
(b) Exertion
(c) Protein synthesis
(d)  Carbohydrates synthesis

Ans. (c) Protein synthesis
Explanation – Ribosomes are macromolecular, found within all living cells, that perform biological protein synthesis.

Ques 6. In the following given options, Name the longest cell in a human body.
(a) Nerve cell
(b) Liver cell
(c) Muscles cell
(d) None of these

Ans. (a) Nerve cell
Explanation- Nerve cells can be 3 feet long.

Ques 7. Cell theory was put forward by?
(a) Schleiden and Schwann
(b) Sutton and Boveri
(c) Watson and  crick 
(d) Darwin

Ans. (a) Schleiden and Schwann
Explanation – Cell theory was put forward by Schleiden and Schwann.

Ques 8. What is a powerhouse of cells?
(a) Golgi bodies
(b) Nucleolus
(c) Mitochondria
(d) Ribosome

Ans. (c) Mitochondria
Explanation – Mitochondria are known as the powerhouse of a cell.

Ques 9. The site of cellular respiration is?
(a) Golgi bodies
(b) Ribosome
(c) Lysosome
(d) Mitochondria

Ans. (d) Mitochondria
Explanation – The enzymatic reaction of cellular respiration begins in the cytoplasm, but most of the reaction occurs in the  Mitochondria.

Ques 10. Which of the following given factors are responsible for the transportation of molecules through cell walls?
(a) Amount of water.
(b) pH
(c) Size of molecules.
(d) Air

Ans. (b) pH
Explanation – pH is responsible for the transportation of molecules through cell walls.

Ques 11. A substance that is more than 80% in the cell is?
(a) Proteins
(b) Fat
(c) Mineral
(d) water

Ans. (d) water
Explanation – Water is a substance that is more than 80% in the cell.

Ques 12. Which of the following cell organelles form the lysosome?
(a) Nucleus 
(b) Endoplasmic reticulum
(c) Ribosome
(d) Golgi bodies 

Ans. (d) Golgi bodies 
Explanation – Lysosomes are small vesicles containing hydrolytic enzymes and surrounded by a single membrane of up to 100nm thickness. They are formed by the Golgi apparatus and contain some 60 different types of acid hydrolyses for the digestion of various materials.

Ques 13. What is the function of Lysosome?
(a) Protein synthesis
(b) Processing and packaging 
(c) Intracellular digestion
(d) Synthesis of fat

Ans. (c) Intracellular digestion
Explanation – Lysosomes are membrane-bound organelles that are capable of breaking down biomolecules such as proteins, nucleic acid, carbohydrates, and lipids.  

Ques 14. Where is situated in the Molecular and Cellular research center?
(a) Mumbai
(b) Kolkata
(c) Bangalore
(d) Hyderabad

Ans. (d) Hyderabad
Explanation – CCMB is an Indian fundamental life science research establishment located in Hyderabad that operates under the aegis of the council of scientific and Industrial Research.

Ques 15. What is the full form of RNA? 
(a) Ribonitric  acid
(b) Ribonutrient acid
(c) Ribonucleic acid
(d) Reverse nucleic acid

Ans. (c) Ribonucleic acid
Explanation – Ribonucleic acid is a polymeric molecule essential in various biological roles in the coding, decoding, regulation, and expression of genes.

Ques 16. Enzymes are? 
(a) Lipids 
(b) Proteins
(c) Steroids
(d) Carbohydrates

Ans. (b) Proteins
Explanation – An enzyme is a type of protein found within a cell. Enzymes create a chemical reaction in the body.

Ques 17. The energy currency of the cell is?
(a) AMP
(b) ATP
(c) RNA
(d) DNA

Ans. (b) ATP
Explanation – ATP is known as the energy currency of the cell. 

Ques 18. Which one can respire in absence of oxygen?
(a) Seed
(b) Leaves
(c) Stem
(d) Root

Ans (a) Seed
Explanation – Respiration at the cellular level may be aerobic or anaerobic. When there is an absence of oxygen the respiration that occurs is called anaerobic respiration.

Ques 19. Leucoplast represent?
(a) Colourless plastids
(b) Proplastids
(c) Cell adhesives
(d) Plastids with variable 

Ans. (a) Colourless plastids
Explanation – Leucoplasts are a category of plastid and as such are organelles found in plant cells. 

Ques 20. In the following given options, What is the importance of mitosis cell division?
 (a) Increase cellular mass
(b) Swift division
(c) Occur in energy tissue of the body
(d) Producing cell genetically similar to the parent cell

Ans. (d) Producing cell genetically similar to the parent cell
Explanation – It helps in maintaining the same number of chromosomes in daughter cells after division .it is responsible for the growth and development of multicellular organisms. It helps in repairing damaged tissues.