Important MCQs on Animal Cell with Answers and Explanations
The MCQs asked in a particular competitive examination may seem to be easy but they contain critical thinking also. The MCQs on animal cells are mostly asked in the NEET examination. In order to get through these MCQs, you should get some basic tips. These include,
NCERT be at your fingertips.
While attending the examination, try to find the most inappropriate option and neglect it. This would help you to find out the right option easily.
Practice the previous year asked questions. There are many sample paper books available in the market or you can simply download them from the internet.
Do not take the risk of making more mistakes as each mistake costs you a -1.
What is Cell?
In the year 1665, Robert Hooke noticed these cells in a bark of a tree which later led to the study of this branch of science widely. He named them so, because of their resemblance to the cells inhabited by Christian monks in a monastery.
Cells are widely known as building blocks of life. The branch of science which deals with the study of cells, it's types and functioning is widely known as cell biology.
Cells are broadly classified into two types:
● Eukaryotic ( comprises of the nucleus)
● Prokaryotic ( do not have a nucleus but have a nucleoid)
Animal Cells
The animal cells are the basic structural and functional units of animal tissues and organs.
These cells come under the eukaryotic division of the cell which consists of a nucleus. These contain both a membrane-bound nucleus as well as other membrane-bound organelles which are absent in the prokaryotic classification. The organelles present in the cells are suspended in the cytoplasm enveloped by a plasma membrane.
The organelles present in the animal cells contribute to the different types of functions that are essential for the survival of the cell. The organelle functioning is the same in both plants and animals as they both are eukaryotic and contain the same type of organelles. These cells do not contain a rigid cell wall. Due to this factor, animals acquire a greater diversity of cell types, tissues, and organs.
These cells simply have a cell membrane but have no cell wall. The other organelles present in an animal cell are chloroplast, vacuoles, nucleus, mitochondria, etc.
Examples of the MCQs
Some of the MCQs based on the animal cell are mentioned below.
1. Which of the following biological membranes separates the inner environment of the cell and the outer environment of the cell in the animal cell?
(a) Cell membrane
(b) Lysosome
(c) Ribosomes
(d) Nucleus
Ans: cell membrane
2. The basic cell membrane structure consists of ………….. and …………. in the animal cell of an organism.
(a) Lipid bilayer
(b) Embedded proteins
(c) Golgi vesicles
(d) Lipid bilayer and embedded proteins
Ans: lipid bilayer and embedded proteins
3. Which of the following is the cell's genetic material that carries genetic information?
(a) Cell membrane
(b) DNA( Deoxyribonucleic acid)
(c) Golgi apparatus
(d) Lysosomes
Ans: DNA ( Deoxyribonucleic acid)
4. When the ribosomes of nucleolus leave the nucleus, they do important work of
(a) Synthesizing cell wall
(b) Making of epithelium
(c) Synthesizing glycogen
(d) Synthesizing proteins
Ans: synthesizing proteins
5. Which of the following components of the animal cell supports and protects the cell?
(a) Nucleus
(b) Cell membrane
(c) Vacuoles
(d) DNA
Ans: cell membrane
6. In which part of the cell, synthesizing and secretion of specific steroid hormones and enzymes of carbohydrates metabolism takes place?
(a) Smooth endoplasmic reticulum
(b) Golgi body
(c) Mitochondria
(d) Lysosome
Ans: smooth endoplasmic reticulum
7. Which of the following produces energy in the form of ATP in the cells of an organism?
(a) Chromatin
(b) RNA
(c) DNA
(d) Mitochondria
Ans: mitochondria
8. Mitochondria is the ………….. shaped organelle that releases chemical energy from the food.
(a) Square
(b) Round
(c) Bean
(d) 'C' shaped
Ans: bean-shaped
9. The electrochemically sharing of the information between sensory receptors and the central nervous system is done by…………..Type of cell.
(a) Blood cells
(b) Nerve cells
(c) Muscle cells
(d) Skin cells
Ans: nerve cells
A Few More MCQs
Animal cells are eukaryotic cells lacking a cell wall but possess a true, membrane-bound nucleus in addition to other cellular organelles. They show the presence of DNA within the nucleus. Animal cells consist of organelles and cell structures that are responsible to carry out dedicated functions required for the proper functioning of the cell.
1. Name the Non-Membrane Bound Organelle Exclusively Found only in Animal Cells.
(a) Sphaerosome
(b) Glyoxysome
(c) Centriole
(d) Peroxisome
Answer: (c)
2. If the Centromere is Located at the Proximity of the End of a Chromosome, It is Known as-
(a) Acrocentric
(b) Metacentric
(c) Telocentric
(d) Submetacentric
Answer: (a)
3. Flagella, Centrioles, Cilia and Basal Bodies Possess Evident Similar Structural Elements and Arrangements. This can Lead to This Probable Hypothesis.
(a) Loss of basal bodies should cause loss of all cilia, flagella, and centrioles
(b) Disruption of one of these types of structure should necessarily disrupt each of the others as well
(c) survival for motility must select for microtubular arrays in circular patterns
(d) Motor proteins like dynein must have evolved before any of those four sorts of structure
Answer: (c)
4. In the Plasma Membrane of a Few Animals, the Presence of Cholesterol.
(a) makes the membrane less flexible permitting it to sustain greater pressure from within the cell
(b) enables the membrane to stay fluid more easily when the temperature of cell drops
(c) enables the animal to get rid of hydrogen atoms from saturated phospholipids
(d) enables the animal to feature hydrogen atoms to unsaturated phospholipids
Answer: (b)
5. Component of Plant Cell is not There in Animal Cell is-
(a) Cytoplasm
(b) Cell membrane
(c) Cellulose
(d) Nucleus
Answer: (c)
6. The Association of More than One Ribosome with a Single Molecule of m-RNA Complex is Known as-
(a) Polysome
(b) Polypeptide
(c) Polymer
(d) Polysaccharide
Answer: (a)
7. This Cell Organelle is Responsible to Extract Energy from Carbohydrates to Form ATP-
(a) Mitochondrion
(b) Lysosome
(c) Ribosome
(d) Chloroplast
Answer: (a)
8. Balbiani Rings are the Sites of-
(a) RNA and protein synthesis
(b) Lipid synthesis
(c) Nucleotide synthesis
(d) Polysaccharide synthesis
Answer: (a)
9. This Organism is not an Example of Eukaryotic Cells-
(a) Euglena viridis
(b) Escherichia coli
(c) Amoeba proteus
(d) Paramoecium caudatum
Answer: (b)
10. The Most Arena of Various Sorts of Cell Activities is-
(a) Mitochondrion
(b) Nucleus
(c) Cytoplasm
(d) Plasma membrane
Answer: (c)
Conclusion
Practice these questions on animal cells and grab hold of the concepts well. Answering these questions will help you focus on the relevant chapters well. You can also increase your knowledge by learning the right answers to all these questions.
FAQs on Animal Cell MCQ Practice Questions and Answers
1. What is an animal cell?
An animal cell is a type of eukaryotic cell that forms the basic structural and functional unit of animals. It contains a true nucleus and membrane-bound organelles.
- Enclosed by a cell membrane (plasma membrane).
- Contains cytoplasm with specialized organelles.
- Lacks a cell wall and chloroplasts, unlike plant cells.
- Found in tissues such as muscle, nerve, and epithelial tissue.
2. What are the main parts of an animal cell?
The main parts of an animal cell include the cell membrane, cytoplasm, nucleus, and several membrane-bound organelles. Key components are:
- Nucleus – controls cell activities and contains DNA.
- Mitochondria – produce ATP through cellular respiration.
- Ribosomes – synthesize proteins.
- Endoplasmic reticulum (ER) – involved in protein and lipid synthesis.
- Golgi apparatus – modifies and packages proteins.
- Lysosomes – perform intracellular digestion.
3. What is the function of the nucleus in an animal cell?
The nucleus controls the activities of an animal cell by storing and regulating genetic information in the form of DNA. Its main roles include:
- Directing protein synthesis through gene expression.
- Regulating cell growth and division.
- Containing the nucleolus, which produces ribosomal RNA (rRNA).
4. What is the function of mitochondria in an animal cell?
The mitochondria are responsible for producing energy in the form of ATP through cellular respiration. They:
- Break down glucose using oxygen.
- Release energy stored in chemical bonds.
- Are known as the "powerhouse of the cell."
5. What is the difference between plant and animal cells?
The main difference between plant cells and animal cells is that plant cells have a cell wall, chloroplasts, and a large central vacuole, while animal cells do not. Key differences include:
- Cell wall: Present in plant cells; absent in animal cells.
- Chloroplasts: Present in plant cells for photosynthesis; absent in animal cells.
- Vacuole: Large central vacuole in plants; small or temporary vacuoles in animals.
- Shape: Plant cells are usually rectangular; animal cells are often irregular or round.
6. Do animal cells have a cell wall?
No, animal cells do not have a cell wall; they are surrounded only by a flexible cell membrane. This allows:
- Greater flexibility in shape.
- Movement and phagocytosis in some cells.
- Formation of different tissue types.
7. What is the function of lysosomes in an animal cell?
The lysosomes function as the digestive system of an animal cell by breaking down waste materials and cellular debris. They contain:
- Digestive enzymes that degrade macromolecules.
- Enzymes that destroy worn-out organelles (autophagy).
- Mechanisms to fight invading pathogens.
8. What is the role of ribosomes in an animal cell?
The ribosomes are responsible for protein synthesis in an animal cell. They:
- Read messenger RNA (mRNA).
- Join amino acids to form polypeptide chains.
- May be free in the cytoplasm or attached to the rough endoplasmic reticulum.
9. What is cytoplasm in an animal cell?
The cytoplasm is the jelly-like substance inside an animal cell that surrounds and supports the organelles. It:
- Contains water, salts, and proteins.
- Is the site of many metabolic reactions.
- Allows movement of materials within the cell.
10. How does an animal cell produce proteins?
An animal cell produces proteins through the processes of transcription and translation. The steps include:
- Transcription: DNA in the nucleus is copied into mRNA.
- mRNA moves to ribosomes in the cytoplasm.
- Translation: Ribosomes assemble amino acids into a protein.
- The Golgi apparatus modifies and packages the protein.
