Cell Organelle, Cell Division & Cell

Total Questions: 63

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

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

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

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

3 - What is the function of cell membrane?

A ) Controlling cell activities
B ) Defining cell boundaries ✅
C ) Storing genetic information
D ) Synthesize protein

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

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

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

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

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

A ) Aerobic occurs with oxygen anaerobic occurs without oxygen ✅
B ) Arabic produces 2 ATP , anaerobic produces 36 ATP
C ) Both processes produce the same ATP
D ) None of these

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

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

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

A ) Double -stranded helical ✅
B ) Signal -stranded
C ) Triple -stranded
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 provides energy for protein synthesis
D ) None of these

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

A ) It contains ribosomes ✅
B ) It is involved in liquids synthesis
C ) It contains enzymes
D ) It is involved in cell division

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

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

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

A ) Breaking down waste
B ) Synthesizing protein
C ) Carrying genetic information ✅
D ) Storing energy

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

A ) Gene ✅
B ) Chromosome
C ) Ribosome
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 ) Chromosomes
B ) Cytoplasm
C ) Endoplasmic reticulum
D ) Nucleolus ✅

17 - What is the composition of DNA molecules?

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

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

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

19 - What is the function of histone protein in DNA?

A ) They protect chromosomes from damage
B ) They assist in organizing DNA into chromosomes ✅
C ) They help in DNA application
D ) They store energy

20 - What is the function of centrioles during cell division?

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

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

A ) Organizing DNA
B ) Providing a medium for chemical reaction ✅
C ) Storing nutrients
D ) Replicating DNA

22 - What does the rough and endo in the reticulum primarily assist with?

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

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

A ) DNA replication
B ) Synthesis of protein
C ) Detoxification and lipid synthesis ✅
D ) Breaking down of waste product

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

A ) Synthesizing protein ✅
B ) Packaging protein
C ) producting energy
D ) Storing genetic information

27 - What is the role of ribosome in the process of protein synthesis?

A ) To read mRNA and assemble amino acid into proteins ✅
B ) To store energy for the cell
C ) To transport proteins
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 ) Lysosome
B ) Golgi Apparatus
C ) Nucleus ✅
D ) Endoplasmic reticulum

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

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

32 - The main function of the vacuole in plant cells is -----:

A ) DNA replication
B ) Sensitizing protein
C ) Storage of water and nutrients ✅
D ) Energy production

33 - What is the function of the golgi apparatus?

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

34 - Which organelle is responsible for producing ATP?

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

35 - Which is protein factory for RNA?

A ) DNA
B ) Ribosomes ✅
C ) Chromosomes
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 apparatus

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

A ) Mitosis results in two daughter cells; meiosis results in four
B ) Mitosis is a type of sexual reproduction; meiosis is a type of asexual reproduction
C ) Mitosis involved 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 ) Asexual reproduction
C ) Growth of cells
D ) Repair of damaged cells

43 - Which of the following is responsible for the formation of spindle fibres during cell division?

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

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

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

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

A ) Harmful waste product
B ) Water
C ) Genetic material ✅
D ) Protein

46 - What is turgor pressure?

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

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

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

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

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

49 - What is the structure of plastids?

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

50 - What type of plastid is responsible for photosynthesis?

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

51 - What are the chromoplast responsible for?

A ) Storing starch
B ) Providing color to plants through pigments ✅
C ) Storing lipids
D ) Producting protein

52 - Leucoplast are responsible for;

A ) Photosynthesis
B ) Storing starch, proteins and liquid ✅
C ) Giving color to fruits
D ) Synthesizing chlorophyll

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

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

54 - Which plastid is found in aging leaves and is involved in the storage of pigments?

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

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

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

56 - What is thylakoid?

A ) The colorless plastid
B ) The memberance bound structure where photosynthesis occurs ✅
C ) A protein that synthesis enzymes
D ) The outermost layer of the plant cell

57 - What are stacks of thylakoids called?

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

58 - What is the function of stroma in chloroplasts?

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

59 - What is granum?

A ) Stacks of thylakoids in the chloroplast ✅
B ) The memberance bound structure where DNA is stored
C ) The part of the cell where energy is produced
D ) None of these

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

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

61 - What is the purpose of chloroplast being near the surface of plant cells?

A ) To maximize exposure to light for photosynthesis ✅
B ) To absorb water
C ) To store starch
D ) To maintain cell shap

62 - What is the function of leucoplast in plant cells?

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