Free Cell Structure and Function MCQs with Answers
2,478 Cell Structure and Function MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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Read the Cell Structure and Function notesFree MDCAT chapter notes with key terms2,478 questions · page 55 of 124
- A. 100 x
- B. 300 x
- C. 400 x
- D. 500 x
Explanation: Resolution is the measurement of the number of pixelsNaked eye resolution is 576 Megapixels which is 500 times the resolution of compound…
Correct answer: 500 x- A. Central Vacuole, Cell Membrane, Ribosomes
- B. Chloroplast, Ribosome , Mitochondria
- C. Cell wall, Chloroplast, Central vacuole
- D. Ribosome, Mitochondria, Cell wall
Explanation: Animal cells do not have a Cell wall and Chloroplasts. They have temporary small vacuoles; unlike plant cells which have large, permanent…
Correct answer: Cell wall, Chloroplast, Central vacuole- A. Cell wall
- B. Plasma membrane
- C. Nuclear membrane
- D. Vacuole
Explanation: Selectively permeable means only substances that are needed in the cell are allowed to pass throughOption A: Cell wall is fully…
Correct answer: Plasma membrane- A. M
- B. K
- C. C
- D. D
- E. E
Explanation: The alphabet D represents the mitochondria, which is also known as the cell's powerhouse due to its role in producing energy in the form…
Correct answer: D- A. Magnification
- B. Image
- C. Match
- D. Contrast
Explanation: Staining is used to enhance contrast in microscopic samples, making it easier to distinguish between different structures and components…
Correct answer: Contrast- A. Sieve tube cells
- B. Bacteria
- C. Red blood cells
- D. All of the above
Explanation: The correct answer is 'All of the above'. Sieve tube cells, bacteria, and red blood cells all lack a nucleus.
Correct answer: All of the above- A. Robert Brown
- B. Camillo Golgi
- C. Christian de Duve
- D. Robert Hooke
Explanation: The Golgi complex, also referred to as the Golgi apparatus, was discovered by Camillo Golgi in 1898, and it bears his name.
Correct answer: Camillo Golgi- A. Golgi complex, plastids, mitochondria
- B. Plastids, mitochondria, endoplasmic reticulum
- C. Golgi complex, endoplasmic reticulum, centrioles
- D. Mitochondria, endoplasmic reticulum, ribosomes
Explanation: The correct answer is Option D: Mitochondria, endoplasmic reticulum, ribosomes.
Correct answer: Mitochondria, endoplasmic reticulum, ribosomes- A. Carbohydrates
- B. Nucleic acids
- C. Proteins
- D. Lipids
Explanation: The correct answer is Lipids. The smooth endoplasmic reticulum (SER) is primarily responsible for lipid metabolism, including the…
Correct answer: Lipids- A. Leeuwenhoek
- B. Robert Hooke
- C. Flemming
- D. Robert Brown
Explanation: The origins of the word 'cell' in the 1660s, Robert Hooke looked through a primitive microscope at a thinly cut piece of cork.
Correct answer: Robert Hooke1091. Centrosome is found in:
- A. Cytoplasm
- B. Nucleus
- C. Chromosomes
- D. Nucleolus
Explanation: The centrosome is found in the cytoplasm of animal cells. The centrosome is a small organelle that plays a crucial role in cell division…
Correct answer: Cytoplasm- A. Integral proteins of the plasma membrane
- B. Proteins that bind to ion gated channels in plasma membrane
- C. Proteins which randomly bind to lipids of membrane
- D. Peripheral proteins of membrane
Explanation: GPI-anchored proteins can indeed be considered a specific type of peripheral membrane protein.
Correct answer: Peripheral proteins of membrane- A. Proton Nucleus
- B. Nucleus
- C. Nucleoplasm
- D. Nucleoid
Explanation: The name of the region where double-stranded circular DNA is found in the prokaryotic cell is the nuclecid.
Correct answer: Nucleoid- A. Ribosomes
- B. Endoplasmic Reticulum
- C. Nucleolus
- D. Smooth Endoplasmic Reticulum
Explanation: The site of protein synthesis in the cell are ribosomes. These are present attached to the surface of the rough endoplasmic reticulum and…
Correct answer: Ribosomes- A. Tonoplast
- B. Plasma membrane
- C. Epidermis
- D. Both Options B and C are correct
Explanation: The correct answer is option a) Tonoplast. The tonoplast is the specialized membrane surrounding the vacuole in plant cells…
Correct answer: Tonoplast- A. 6
- B. 9
- C. 12
- D. 15
Explanation: Animal cells, cells of some microorganisms, and lower plants contain two centrioles located near the exterior surface of the nucleus.
Correct answer: 91097. According to the fluid mosaic model, the plasma membrane is composed of which of the following?
- A. Phospholipid
- B. Intrinsic proteins
- C. Extrinsic proteins
- D. All of these
Explanation: The fluid mosaic model describes the plasma membrane as a dynamic structure consisting of a phospholipid bilayer with proteins scattered…
Correct answer: All of these- A. Schwann
- B. Schleiden
- C. Robert Hooke
- D. Both a and b
Explanation: The first time the word cell was used to refer to these tiny units of life was in 1665 by a British scientist named Robert Hooke.
Correct answer: Robert Hooke1099. Damage to one of the following immediately kills the cell whether its prokaryotic or eukaryotic?
- A. Nucleus
- B. Cell membrane
- C. Mitochondria
- D. All of these
Explanation: The cell membrane is essential for maintaining the cell's internal environment by regulating the passage of substances in and out of the…
Correct answer: Cell membrane- A. Cell membrane
- B. Golgi apparatus
- C. Mitochondria
- D. Nucleoid
Explanation: The correct answer is the cell membrane, as it is the universal cellular structure that is present in both prokaryotic and eukaryotic…
Correct answer: Cell membrane