Question: Endoplasmic reticulum is bound by
1. Cellulose wall
2. Membranes
3. Sclerotised layer
4. Chitinised wall
Answer: 2
Question: The Electron transport chain is in the
1. Nucleus
2. Outer membrane of mitochondria
3. Inner membrane of mitochondria
4. Lysosomes.
Answer: 3
Question: A Mitochondria possesses a
1. Single membrane
2. Double membrane
3. Three-layered membrane
4. Four-layered membrane
Answer: 2
Question: Within the cell, the site of respiration is the
1. Golgibodies
2. Ribosomes
3. Mitochondria
4. Nucleus
Answer: 3
Question: Which of the following plays an important part in photosynthesis?
1. Chloroplast
2. Centrosome
3. Tonoplast
4. Nematoblast
Answer: 1
Question: The cytoplasm of a cell refers to
1. Protoplasm outside the cell nucleus
2. Protoplasm within the cell nucleus
3. Protoplasm within and outside the nucleus
4. Peripheral protoplasm
Answer: 1
Question: Quantosomes are present in
1. Thylakoid membrane
2. Palisade tissue of mesophyll
3. Spongy tissue of mesophyll
4. Mitochondria
Answer: 1
Question: The protoplasm of a child is exactly the same as that of its
1. Mother
2. Father
3. Grandfather
4. Identical twin
Answer: 4
Question: Which of the following is a physical basis of life?
1. Nucleus
2. Ribosome
3. Protoplasm
4. Mitochondria
Answer: 3
Question: The thin layer that forms a common layer for any two adjacent cells is
1. Middle lamella
2. Primary wall
3. Secondary wall
4. None of above
Answer: 1
Question: The wonder pigment chlorophyll is present in
1. Mitochondria
2. Centrosomes
3. Quantosomes
4. Lysosomes
Answer: 3
Question: The main function of plasma membrane is to
1. Control all cellular activities
2. Store cell material
3. Maintain the cell shape and size
4. Regulate the flow of material into and outside the wall
Answer: 4
Question: The plasma membrane in Animal cell is composed of
1. Cellulose
2. Proteins
3. Lipids and proteins
4. Fats
Answer: 3
Question: What controls the entry and exit of molecules in cell?
1. Nucleus
2. Ribosomes
3. DNA
4. Plasma membrane
Answer: 4
Question: Cell membrane is:
1. Permeable
2. Selectively permeable
3. Semipermeable
4. Impermeable
Answer: 2
Question: Who first observed the plasma membrane?
1. William Scifriz
2. Schwann
3. Palade
4. None of above
Answer: 1
Question: Plant cells can usually be distinguished because only plant cells possess
1. Cell walls and mitochondria
2. Golgi bodies and central vacuoles
3. Cell walls and central vacuoles
4. Chromosomes and mitochondria
Answer: 3
Question: The function of a cell wall is
1. To give definite shape to the cell
2. To provide mechanical strength and protection to the cell
3. To prevent the cell from desiccation
4. All of the above
Answer: 4
Question: Cellular component can be physically separated from each other by
1. Centrifugation
2. Radioactive tracers
3. Microscopy
4. Chromatography
Answer: 1
Question: The use of which of the following devices has given the modern biologist a better insight into the internal structure of cells
1. 8
2. Electron microscope
3. Spectrophotometer
4. Ultracentrifuge
Answer: 2
Question: The smallest size of a cell which can be seen directly by the eye is
1. One micron
2. 10 Micron
3. 100 Micron
4. 1000 micron
Answer: 3
Question: The cell theory of Schleiden states that
1. Cells reproduce by mitosis or meiosis
2. All cells have nuclei
3. Cells are the ultimate units forming the structure of all plant tissues
4. Cells arise only from pre-existing cells
Answer: 3
Question: The theory that all animals and plants are made up of cells and they could arise only from pre-existing cells was propounded by
1. Robert Hooke
2. Matthias Schleiden and Theodore Schwann
3. Purkinje
4. Leuwenhoek
Answer: 2
Question: Who invented the Electron microscope?
1. Knoll and Ruska
2. Rudolk and Kolliker
3. Robert Hooke
4. C.P. Swanson
Answer: 1
Question: The first person to observe the bacteria, protozoa and spermatozoa under the microscope was
1. Theodore Schwann
2. Matthias Schleiden
3. Robert Hooke
4. Leuwenhoek
Answer: 4
Question: Who was the first scientist to use an instrument for biological studies in 1665?
1. Robert Hooke
2. Schwann
3. Schleiden
4. None of the above
Answer: 1
Question: An anaerobic species of the bacterium Clostridium causes a very serious disease in human populations. Which of the following diseases is it?
1. Botulism
2. Pneumonia
3. Tuberculosis
4. Typhid
Answer: 1
Question: Whooping cough is caused by
1. Salmonella
2. Bacillus pertussis
3. Variola
4. Vibriona
Answer: 2
Question: Pneumonia is a bacterial disease caused by the type of bacteria called
1. Bacilli
2. Cocci
3. Sprilli
4. Vibrio
Answer: 2
Question: The dreaded human disease, Syphilis, is caused by:
1. A bacterium
2. Fungus
3. An animal parasite
4. Virus
Answer: 1