The fundamental unit of life MCQs with Answers

Question-1. Among the following statements which one is incorrect?

1. Golgi apparatus is involved with formation of lysosomes.
2. Nucleus, mitochondria and plastid have DNA, hence they are able to make their own structural proteins.
3. Lysosomes are called the suicide bags as they eat up their own cells.
4. Cytoplasm is called known as protoplasm.

Question-2. Cell membrane engulfed food from its external environment called

1. Reverse Osmosis
2. Diffusion
3. Endocytosis
4. Circulation

Question-3. Cell wall is absent in

1. Plants
2. Bacteria
3. Fungi
4. Mycoplasma

Question-4. Fluid content present in cell called

1. Cytoplasm
2. Vacuole
3. Proteins
4. Chromosomes

Question-5. Human body is originated from

1. mother
2. Stomach of mother
3. Single cell
4. None of them

Question-6. Nucleus plays vital role in cellular

1. Circulation
2. Transportation
3. Reproduction
4. Digestion

Question-7. Priya Is Writing Some Statements, Choose The Correct Statement And Help Him:

1. Lysosomes serve as intracellular digestive system so it is as called digestive bags.
2. Lysosomes are also known as suicide bags of the cell and works as a kind of garbage disposal system.
3. During the transformation of a tadpole into frog, the embryonic tissues such as gills and tail are digested by the lysosomes and utilized by other body cells.
4. All the above

Question-8. Rod shaped structure present in nucleus called

1. Cytoplasm
2. Vacuole
3. Proteins
4. Chromosomes

Question-9. The cell is swell up by…............solution

1. Hypertonic solution
2. Hypotonic solution
3. Isotonic solution
4. None of them

Question-10. The primary function of smooth endoplasmic reticulum in liver cells is

1. protein synthesis
2. catabolism of proteins
3. detoxification
4. carbohydrate metabolism

Question-11. Which of the following statement marks as a difference between plant cell and animal cell?

1. Plant cells have cell wall which animal cells do not.
2. Plant cells do not have vacuole while animal cells do have.
3. Plant cells have only cell membrane while animal cells have both cell wall as well as cell membrane.
4. Plant cells have more plastids while animal cells have few plastids.

Question-12. White or colorless plastids known as________.

1. Plasmodium
2. Plastid
3. Chloroplast
4. Leucoplast

Question-13. You must have observed that a fruit when unripe is green but it becomes beautifully coloured when ripe. According to you what is the reason behind this colour change.

1. Chloroplasts change to chromosplasts
2. Chromosplasts change to chromosomes
3. Chloroplasts change to chromosomes
4. Chromosplasts change to chloroplasts

Question-14. A cell will swell up if

1. the concentration of water molecules in the cell is higher than the concentration of water molecules in the surrounding medium.
2. the concentration of water molecules in the surrounding medium is higher than water molecules concentration in the cell.
3. the concentration of water molecules is same in the cell and in the surrounding medium.
4. concentration of water molecules does not matter.

Question-15. Amoeba acquires its food through a process, termed

1. exocytosis
2. endocytosis
3. plasmolysis
4. exocytosis and endocytosis both

Question-16. Animal cell lacking nuclei would also lack in

1. Endoplasmic reticulum
2. Chromosome
3. Lysosome
4. Ribosome

Question-17. Cell arises from pre-existing cell was stated by

1. Haeckel
2. Virchow
3. Hooke
4. Schleiden

Question-18. Cell theory was given by

1. Schleiden and Schwann
2. Virchow
3. Hooke
4. Haeckel

Question-19. Cell wall of which one of these is not made up of cellulose?

1. Bacteria
2. Hydrilla
3. Mango tree
4. Cactus

Question-20. Chromosomes are made up of

1. DNA
2. Protein
3. DNA and protein
4. RNA

Question-21. Find out the correct sentence.

1. Enzymes packed in lysosomes are made through RER (rough endoplasmic reticulum).
2. Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipid and protein respectively.
3. Endoplasmic reticulum is rélated to the destruction of plasma membrane.
4. Nucleoid is present inside the nucleoplasm of eukaryotic nucleus.

Question-22. Find out the false sentence.

1. Nucleus is involved with the formation of lysosomes.
2. Nucleus, mitochondria and plastid have DNA, hence they are able to make their own structural proteins.
3. Mitochondria is said to be the power house of the cell as ATP is generated in them.
4. Cytoplasm is called as protoplasm.

Question-23. Following are a few definitions of osmosis:Read carefully and select the correct definition.

1. Movement of water molecules from a region of higher concentration to a region of lower concentration through a semi-permeable membrane.
2. Movement of solvent molecules from its higher concentration to lower concentration.
3. Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane.
4. Movement of solute molecules from lower concentration to higher concentration of solution through a semi permeable membrane.

Question-24. Kitchen of the cell is

1. mitochondria
2. endoplasmic reticulum
3. chioroplast
4. golgi apparatus

Question-25. Lipid molecules in the cell are synthesised by

1. smooth endoplasmic reticulum
2. rough endoplasmic reticulum
3. golgi apparatus
4. plastids

Question-26. Living cells were discovered by

1. Robert Hooke
2. Purkinje
3. Leeuwenhoek
4. Robert Brown

Question-27. Lysosome arises from

1. endoplasmic reticulum
2. golgi apparatus
3. nucleus
4. mitochondria

Question-28. Organelle other than nucleus, containing DNA is

1. endoplasmic reticulum
2. golgi apparatus
3. mitochondria
4. lysosomes

Question-29. Organelle without a cell membrane is

1. ribosome
2. golgi apparatus
3. chioroplast
4. nucleus

Question-30. Plasmolysis in a plant cell is defined as

1. breakdown (lysis) of plasma membrane in hypotonie medium
2. shrinkageof cytoplasm in hypertonic medium
3. shrinkage of nucleoplasm
4. none of them

Question-31. Select the odd one out.

1. The movement of water across a semi permeable membrane is affected by the amount of substances dissolved in it.
2. Membranes are made of organic molecules like proteins and lipids.
3. Molecules soluble in organic solvents can easily pass through the membrane.
4. Plasma membranes contain chitin sugar in plants.

Question-32. Silver nitrate solution is used to study

1. endoplasmic reticulum
2. golgi apparatus
3. nucleus
4. mitochondria

Question-33. The cell organelle involved in forming complex sugars from simple sugars are

1. endoplasmic reticulum
2. ribosomes
3. plastids
4. golgi apparatus

Question-34. The only cell organelle seen in prokaryotic cell is

1. mitochondria
2. ribosomes
3. plastids
4. lysosomes

Question-35. The proteins and lipids, essential for building the cell membrane, are manufactured by

1. rough endoplasmic reticulum
2. golgi apparatus
3. plasma membrane
4. mitochondria

Question-36. The undefined nuclear region of prokaryotes is also known as

1. nucleus
2. nucleolus
3. nucleic acid
4. nucleoid

Question-37. What allows or permits the entry and exit of some material in and out of the cell

1. Cell envelope
2. Cell cover
3. Cell membrane
4. Cell protector

Question-38. What is a complex substance and provides structural strength to plant

1. Cellulose
2. Carbohydrates
3. Minerals
4. Lipids

Question-39. Which cell organelle plays a crucial role in detoxifring many poisons and drugs in a cell?

1. Golgi apparatus
2. Lysosomes
3. Smooth endoplasmic reticulum
4. Vacuoles

Question-40. Which of the following are covered by a single membrane?

1. Mitochondria
2. Vacuole
3. Lysosome
4. Plastid

Question-41. Which of the following can be made into crystal?

1. A bacterium
2. An Amoeba
3. A virus
4. A sperm

Question-42. Which of these is not related to endoplasmic reticulum?

1. It behaves as a transport channel for proteins between nucleus and cytoplasm.
2. It transports materials between various regions in the cytoplasm.
3. It can be the site of energy generation.
4. It can be the site for some biochemical activities of the cell.

Question-43. Which out of the following is not a function of vacuole?

1. Storage
2. Providing turgidity and rigidity to the cell
3. Waste excretion
4. Locomotion

Question-44. Who is not multicellular organism

1. Human
2. Plant
3. Amoeba
4. Cactus