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Cell: Unit of Life (Class - XI)

Cell: Unit of Life (Class - XI)

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following statements is not true about cell theory?

  1. The bodies of all living beings are made up of cells and their products.
  2. Cells are the structural units in the body of a living organism.
  3. Every cell is made up of a small mass of protoplasm having nucleus.
  4. All organelles of cell can survive individually.
Question 2 Multiple Choice (Single Answer)

Which of the following pairs of scientist and discovery is incorrectly matched?

  1. Meischer - Nucleotides
  2. Holler et al - Structure of tRNA
  3. Nageli and Cramer - Cell membrane
  4. Robert Brown - Nucleus
Question 3 Multiple Choice (Single Answer)

The role of the nucleus in regulating the phenotype of plant was discovered in

  1. maize
  2. Neurospora
  3. Acetabularia
  4. pea
Question 4 Multiple Choice (Single Answer)

The in-foldings of the inner mitochondrial membrane are called

  1. cristae
  2. oxysomes
  3. grana
  4. cisterns
Question 5 Multiple Choice (Single Answer)

Which of the following cell organelles is/are semi-autonomous?

  1. Mitochondria
  2. Ribosomes
  3. Endoplasmic reticulum
  4. Golgi bodies
Question 6 Multiple Choice (Single Answer)

Which of the following cell organelles is/are associated with photorespiration?

  1. Peroxisome
  2. Glyoxysome
  3. Mesosome
  4. All of the above
Question 7 Multiple Choice (Single Answer)

Fluid mosaic model was proposed by

  1. J. David Robertson
  2. Danielli and Davson
  3. Singer and Nicolson
  4. Nageli and Cramer
Question 8 Multiple Choice (Single Answer)

Grana are a part of

  1. mitochondria
  2. chloroplasts
  3. aleurone grains
  4. starch grains
Question 9 Multiple Choice (Single Answer)

Extra nuclear DNA is present in

  1. ribosome
  2. chloroplast
  3. golgi body
  4. ER
Question 10 Multiple Choice (Single Answer)

The shape of the chromosome is determined by

  1. centromere
  2. telomere
  3. centrosphere
  4. chromomere
Question 11 Multiple Choice (Single Answer)

Most abundant elements in a living cell are

  1. C, O, H and N
  2. C, O, S and P
  3. C, O, N and S
  4. C, O, H and P
Question 12 Multiple Choice (Single Answer)

Compound which acts as a reservoir of phosphate-bond energy in the cell is

  1. phosphagen
  2. plastogen
  3. carcinogen
  4. plastocin
Question 13 Multiple Choice (Single Answer)

Which of the following cell structures is/are associated with oxidative phosphorylation?

  1. Grana
  2. Oxisomes
  3. Ribosomes
  4. Endoplasmic reticulum
Question 14 Multiple Choice (Single Answer)

Which of the following organelles are aassociated with digestive enzymes?

  1. Ribosomes
  2. Lysosomes
  3. Peroxisomes
  4. Chromosomes
Question 15 Multiple Choice (Single Answer)

The 'fluid mosaic' model of cell membrane states that

  1. a lipid bilayer has proteins embedded in itself and none on the surface
  2. a lipid bilayer has some embedded proteins and some proteins on the surface
  3. a lipid bilayer is coated by a layer of proteins on each face
  4. a lipid bilayer is coated by a layer of proteins on the outer face only
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