Class 11 Biology Cell The Unit of Life MCQs with Answers

Class 11 Biology Cell: The Unit of Life MCQs with Answers provide Sainik School aspirants a targeted resource for mastering fundamental concepts. Tailored to the class 11 biology syllabus, these multiple-choice questions focus on the core topic of cell biology. With clear and concise answers, students can efficiently self-assess, identifying strengths and areas for improvement. A solid understanding of cell biology is pivotal for success, and these MCQs ensure thorough comprehension of essential concepts.

As students prepare for Sainik School entrance exams, engaging with these MCQs not only enhances exam readiness but also sharpens analytical and problem-solving skills. The content aligns with the broader goals of Sainik School education, emphasizing a holistic understanding of biology principles. This resource serves as a strategic tool, helping students build a strong foundation for future academic endeavors and meet the specific requirements of Sainik School examinations.

Q1. The nucleolus is the site of formation of:

1. Ribosomes.
2. Spindle fibres.
3. Chromosomes.
4. Peroxisomes.

Q2. Which of the following feature is not associated with centrosome?

1. Lipid bilayer covering.
2. Two centriole.
3. Two cylindrical structures.
4. Pericentriolar material.

Q3. Which of the following does not have cell wall?

1. Mycoplasma
2. Bacteria
3. PPLO
4. Blue green algae

Q4.Membranous bag with hydrolytic enzymes which is used for controlling intracellular digestion of macromolecules
is:

1. Endoplasmic reticulum.
2. Nucleosome.
3. Lysosome.
4. Phagosome.

Q5. Polyribosomes are aggregates of:

1. Ribosomes and rRNA.
2. Only rRNA.
3. Peroxisomes.
4. Several ribosomes held together by string of mRNA.

Q6. Mitochondrial cristae are sites of:

1. Breakdown of macromolecules.
2. Protein synthesis.
3. Phosphorylation of flavoproteins.
4. Oxidation-reduction reactions.

Q7. The function of rough endoplasmic reticulum is:

1. Fat synthesis.
2. Lipid synthesis.
3. Protein synthesis.
4. Steroid synthesis.

Q8. Which one of these is not a eukaryote?

1. Euglena.
2. Anabena.
3. Spirogyra.
4. Agaricus.

Q9. Lysosomes are reservoirs of:

1. RNA and protein.
2. Fats.
3. Secretory glycoproteins.
4. Hydrolytic enzymes.

Q11. Gas vacuole is present in:

1. Green photosynthetic bacteria.
2. Purple photosynthetic bacteria.
3. Blue green algae.
4. All of the above.

Q12. Organelles can be separated from cell homogenate through.

1. Chromatography.
2. X-rays diffraction.
3. Differential centrifugation.
4. Auto-radiography.

Q13. Inner membrane convolutions of a mitochondrion are known as:

1. Lamellae.
2. Thylakoids.
3. Grana.
4. Cristae.

Q14. Cell wall.

1. Contains minerals like calcium carbonate in certain algae.
2. Helps in cell to cell interaction.
3. Helps in cell to cell interaction.
4. All are correct.

Q113. Organelle/organoid involved in genetic engineering is:

1. Plasmid.
2. Mitochondrion.
3. Golgi apparatus.
4. Lomasome.