Cell Organelle, Cell Division & Cell

Total Questions: 63

1 - The basic unit of plants and animals-------

A ) Cell ✅
B ) Gene
C ) DNA
D ) Chromosomes

2 - What is the outermost boundary of an animal cell?

A ) Cytoplasm
B ) Cell membrane ✅
C ) Cell wall
D ) Nucleus

3 - What is the function of the cell membrane?

A ) Defining cell boundaries ✅
B ) Controlling cell activities
C ) Synthesizing proteins
D ) Strong genetic information

4 - What is the structure that controls cell activities in eukaryotic cells?

A ) Ribosome
B ) Mitochondria
C ) Golgi body
D ) Nucleus ✅

5 - Which structure in the cell is responsible for producing energy?

A ) Mitochondria ✅
B ) Golgi body
C ) Nucleus
D ) Ribosomes

7 - What is the key difference between aerobic and anaerobic respiration?

A ) Aerobic occurs with oxygen ;anaerobic occurs without oxygen ✅
B ) Aerobic produces 2 ATP ;anaerobic produces 36 ATP
C ) Both processes produce the same ATP
D ) Anaerobic respiration required more oxygen

8 - What is the function of Golgi body in a Cell?

A ) Protein packaging and modification ✅
B ) Protein synthesis
C ) Breakdown of waste
D ) Energy production

9 - What type of DNA structure is found in the nucleus?

A ) Single -standard
B ) Double-standard helical ✅
C ) Triple-standard
D ) Circular

10 - How does mRNA contribute to protein synthesis?

A ) It carries the genetic code from the DNA to the ribosomes ✅
B ) It carries protein to the nucleus
C ) It synthesizes proteis
D ) It provides energy for protein synthesis

11 - What makes the rough endoplasmic reticulum "rough"?

A ) It is involved in lipid synthesis ✅
B ) It contains ribosome
C ) It contain enzymes
D ) It is involved in Cell Division

12 - What is the main component of plant cell wall?

A ) Cellulose ✅
B ) Lipids
C ) Proteins
D ) Phospholipids

13 - What is the primary function of mRNA in the cell?

A ) Breaking down waste
B ) Synthesizing Protein
C ) Caring genetic information ✅
D ) Storing energy

14 - What is the term for the basic unit of heredity in DNA?

A ) Gene ✅
B ) Ribosome
C ) Chromosome
D ) Nucleotide

15 - How many pairs of chromosomes are typically present in a human cell?

A ) 23 pairs ✅
B ) 30 pairs
C ) 46 pairs
D ) 48 pairs

16 - Which structure is responsible for producing ribosomes in the nucleus?

A ) Chromosome
B ) Ribosomes
C ) Necleolus ✅
D ) Endoplasmic reticulum

17 - What is the composition of DNA molecule?

A ) Lipids ,proteins and sugar
B ) Sugar ,phosphate and nitrogenous bases ✅
C ) Amino acid and ribosomes
D ) Phosphate and enzyme

18 - Which process is involved in making a new copy of DNA?

A ) Transcription
B ) Translation
C ) DNA replication ✅
D ) Protein synthesis

19 - What is the function of a histone proteins in DNA?

A ) To protect chromosomes from damage
B ) They help in DNA replication
C ) They assist in organising DNA into chromosomes ✅
D ) They store energy

20 - What is the function of centrioles during cell division

A ) Forming the spindle fibres to separate chromosomes ✅
B ) Replicating DNA
C ) Synthesizing proteins
D ) Protecting the nucleus

21 - What is the role of cytoplasm in the cell?

A ) Organising DNA
B ) Lipid synthesis
C ) Providing a medium for chemical reaction ✅
D ) Storing nutrients

22 - What does the rough endoplasmic reticulum primarily assist with?

A ) Protein synthesis ✅
B ) DNA replication
C ) Cell division
D ) Lipid synthesis

24 - What is the primary role of smooth endoplasmic reticulum?

A ) Detoxification and lipid synthesis ✅
B ) Synthesis of proteins
C ) DNA replication
D ) Breakdown of waste products

25 - What is the function of ribosomes in the cells?

A ) Synthesizing proteins ✅
B ) Producing energy
C ) Storing genetic information
D ) Packaging proteins

27 - What is the role of the ribosomes in the process of proteins synthesis?

A ) To read mRNA and assemble amino acid into proteins ✅
B ) To Store energy for the cell
C ) To transport protein
D ) To Package proteins

28 - ----- contain two nuclei.

A ) Paramecium ✅
B ) Monocytes
C ) Plasmodium
D ) None of these

29 - Which organelle is responsible for controlling the activities of the cell?

A ) Golgi apparatus
B ) Nucleus ✅
C ) Lysosome
D ) Endoplasmic reticulum

31 - Packages of enzyme bounded by a membrane are called----?

A ) Lysosomes ✅
B ) Golgi body
C ) Mitochondria
D ) Endoplasmic reticulum

32 - The main function of vacuole in plant cell is-----:

A ) DNA replication
B ) Energy production
C ) Storage of water and nutrients ✅
D ) Protein synthesis

33 - What is the function of Golgi apparatus?

A ) Modifying and packaging proteins ✅
B ) Producing energy
C ) Synthesizing proteins
D ) Storing genetic information

34 - Which organelle is responsible for producing ATP?

A ) Mitochondria ✅
B ) Golgi apparatus
C ) Nucleus
D ) Endoplasmic reticulum

35 - Which is protein factory for RNA?

A ) Chromosomes
B ) DNA
C ) Ribosomes ✅
D ) None of these

36 - Powerhouse of living cell is called----?

A ) Mitochondria ✅
B ) Cytoplasm
C ) Cell wall
D ) None of these

37 - Size of animal and plant increase by----

A ) Mitosis ✅
B ) Meiosis
C ) Budding
D ) None of these

38 - Which organelle is involved in the synthesis of lipids and detoxification?

A ) Rough endoplasmic reticulum
B ) Smooth endoplasmic reticulum ✅
C ) Mitochondria
D ) Golgi prerit

39 - What is the main difference between mitosis and meiosis?

A ) Mitosis results in two daughters cells; meiosis results in four
B ) Mitosis is a type of sexual reproduction; meiosis is a type of asexual reproduction
C ) Mitosis involves only somatic cells; meiosis involves only gametes
D ) Both a and c ✅

40 - Which of the following is the first stage of cell division in mitosis?

A ) Prophase ✅
B ) Anaphase
C ) Telophase
D ) Metaphase

41 - In which phase of mitosis do chromosomes align at the equator of the cell?

A ) Metaphase ✅
B ) Prophase
C ) Anaphase
D ) Telophase

42 - What is the main purpose of meiosis?

A ) Reducing chromosomes number for gamete formation ✅
B ) Repair of damaged cells
C ) Asexual reproduction
D ) Growth of cells

43 - Which of the following is responsible for the formation of spinadle Fibers during cell division?

A ) Mitochondria
B ) Ribosomes
C ) Golgi apparatus
D ) Centrioles ✅

44 - What is the primary function of vacuole in plant cells?

A ) Storing water and maintaining turgor pressure ✅
B ) Synthesizing lipids
C ) Storing proteins
D ) Producing energy

45 - Which of the following is not stored in the vacuole?

A ) Proteins
B ) Water
C ) Genetic material ✅
D ) Harmful waste and products

46 - What is turgor pressure?

A ) Internal pressure caused by water in the vacuole ✅
B ) Pressure that drives photosynthesis
C ) The pressure within the nucleus
D ) Pressure that aids in cell division

47 - What does the vacuole do to support plant growth?

A ) Increases the size of the cell by absorbing water ✅
B ) Stores nutrients
C ) Absorb sunlight
D ) Stores energy in the form of starch

48 - What is the role of the vacuole in relation to chloroplasts?

A ) It helps keep chloroplast near the light for photosynthesis ✅
B ) It produces glucose
C ) It stores chlorophyll
D ) It breaks down protein

49 - What is the structure of plastids?

A ) Single-membrane Bond
B ) Double-membrane bound ✅
C ) Membrane-free
D ) Triple-membrane bound

50 - Which type of plastid is responsible for photosynthesis?

A ) Chloroplast ✅
B ) Chromoplast
C ) Leucoplast
D ) Amyloplast

51 - What are chromoplasts responsible for?

A ) Producing proteins
B ) Storing lipids
C ) Providing colour to plants through pigments ✅
D ) Storing starch

52 - Leucoplast are responsible for-----:

A ) Storing starch ,protein and lipids ✅
B ) Synthesizing chlorophyll
C ) Photosynthesis
D ) Giving colour to fruits

53 - Which plastic is found in aging leaves and is involved in the storage of pigments?

A ) Chromoplast
B ) Chloroplast
C ) Leucoplast
D ) Gerontoplast ✅

54 - What is the primary role of chloroplast in plant cells?

A ) Energy production
B ) Photosynthesis ✅
C ) Water storage
D ) Protein synthesis

55 - What is thylakoid?

A ) The colourless plastid
B ) The membrane bounded structure where photosynthesis occurs ✅
C ) A Protein that synthesis enzyme
D ) The outermost layer of the plant cell

56 - What are stacks of thylakoids called?

A ) Stroma
B ) Granum ✅
C ) Chloroplast
D ) Chromoplast

57 - What is the function of stoma in chloroplasts?

A ) Site of carbon fixation in photosynthesis ✅
B ) Transports water
C ) Stores Starch
D ) Site of light dependent reactions

58 - What is granum?

A ) Stacks of thylakoids in the chloroplast ✅
B ) The inner membrane of the mitochondria
C ) The part of cell where energy is produced
D ) The Membrane bounded structure where DNA is stored

59 - Which plastid is involved in the process of photosynthesis?

A ) Chloroplast ✅
B ) Chromoplast
C ) Leucoplast
D ) Amyloplast

61 - What is the function of leucoplasts in plant cells?

A ) Storing ,starch proteins and lipids ✅
B ) Producing energy
C ) Synthesizing proteins
D ) Involved in photosynthesis

62 - What is the purpose of chloroplasts being near the surface of plant cells?

A ) To Maximize exposure to light for photosynthesis ✅
B ) To Store starch
C ) To Maintain cell shap
D ) To absorb water

63 - Which plastid is responsible for storing starch in plant cells?

A ) Chromoplast
B ) Leucoplast ✅
C ) Amyloplast
D ) Chloroplast