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 118 of 124
- A. Mitochondria
- B. Peroxisomes
- C. Lysosomes
- D. Golgi bodies
- E. Nucleus
Explanation: Explanation for this question will be added soon.
Correct answer: Peroxisomes- A. Endoplasmic reticulum
- B. Cytoplasm
- C. Chloroplasts
- D. Mitochondria
- E. Nucleus
Explanation: Explanation for this question will be added soon.
Correct answer: Chloroplasts- A. Synthesis of proteins
- B. Defence of cell
- C. Packaging of proteins
- D. Digestion of macromolecules
- E. Detoxification of alcohol
Explanation: Explanation for this question will be added soon.
Correct answer: Packaging of proteins- A. Protein & Lipid
- B. Protein & RNA
- C. RNA & Lipid
- D. RNA & Carbohydrates
Explanation: Option A: Protein & Lipid: Ribosomes are not composed of almost equal amounts of protein and lipid.
Correct answer: Protein & RNA2345. Porins are present in:
- A. Mitochondria and golgi apparatus
- B. Mitochondria and chloroplast
- C. Mitochondria and ribosomes
- D. Golgi apparatus and chloroplast
Explanation: Porins are present in the outer membrane of mitochondria and the outer chloroplast membrane.
Correct answer: Mitochondria and chloroplast- A. Endoplasmic reticulum
- B. Ribosomes
- C. Lysosomes
- D. Cell wall
Explanation: Lysosomes are also refered as the dustbin of the cell. They contain hydrolytic enzymes for the breakdown of the cell wastes.
Correct answer: Lysosomes- A. Endoplasmic reticulum
- B. Lysosomes
- C. Mitochondria
- D. Ribosomes
Explanation: It is a self replicating organelle which contains its own DNA and synthesises its own proteins.
Correct answer: Mitochondria- A. Ribosomes
- B. Nuclear membrane
- C. Plasmids
- D. Golgi apparatus
Explanation: The Golgi and plasma membranes are the two main sites where constituents of cell wall are synthesized.
Correct answer: Golgi apparatus- A. Rough endoplasmic reticulum
- B. Smooth endoplasmic reticulum
- C. Golgi apparatus
- D. Ribosomes
Explanation: SER is responsible for the synthesis of hormones and steroids. It also plays a major role in detoxication.
Correct answer: Smooth endoplasmic reticulum- A. Smooth endoplasmic reticulum
- B. Rough endoplasmic reticulum
- C. Golgi apparatus
- D. Ribosomes
Explanation: SER is responsible for 1. Hormone and steroids synthesis 2. Detoxification 3. Impulse transmission.
Correct answer: Smooth endoplasmic reticulum- A. Lysosome
- B. Golgi complex
- C. Vacuole
- D. Centrioles
Explanation: Golgi apparatus is often regarded as the secretary organelle of the cell.
Correct answer: Golgi complex- A. Nucleus
- B. Miitochondria
- C. Lysosome
- D. Vacuole
Explanation: The ATP synthases comprise a very large group of highly conserved enzymes that are found in the bacterial cytoplasmic membranes, the…
Correct answer: Miitochondria- A. Mitochondria
- B. Golgi bodies
- C. Lysosome
- D. Chloroplast
Explanation: A lysosome is a membrane-bound organelle found in many animal cells. They are spherical vesicles that contain hydrolytic enzymes that can…
Correct answer: Lysosome- A. Ribosome
- B. mRNA
- C. Protein
- D. Enzymes
Explanation: The nucleolus is a spherical structure found in the cell's nucleus whose primary function is to produce and assemble the cell's ribosomes.
Correct answer: Ribosome- A. Seven Triplets
- B. Eleven Triplets
- C. Nine Triplets
- D. Five Triplets
Explanation: Each centriole is composed of Nine Triplets of Microtubules
Correct answer: Nine Triplets- A. Vacuole and Nucleoplasm
- B. Cytoplasm and Nucleoplasm
- C. Vacuole and stroma
- D. Vacuole and Cytoplasm
Explanation: Tonoplast is the membrane separating the Vacuole and Cytoplasm
Correct answer: Vacuole and Cytoplasm- A. Chloroplast
- B. Chromoplast
- C. Leucoplast
- D. Amyloplast
Explanation: Chromoplasts are coloured protoplasts. They attract insects and cause pollination.
Correct answer: Chromoplast- A. Cisternae
- B. Cristae
- C. Mesosome
- D. Infolds
Explanation: The folds of the Inner Membrane of mitochondria are called Cristae
Correct answer: Cristae- A. Mitochondria
- B. Golgi Bodies
- C. Lysosomes
- D. Chloroplast
Explanation: The organelles that are spherical sacs, surrounded by a single membrane, and contain hydrolytic enzymes are "Lysosomes." Lysosomes are…
Correct answer: Lysosomes- A. Nucleus only
- B. Nucleolus only
- C. Nucleus & nucleolus only
- D. None of the above
Explanation: Nucleolus is responsible for the synthesis of ribosomal RNA and they are also responsible for storing the RNA.
Correct answer: Nucleolus only