Home › Quizzes › Cell Biology: Organelles and Cell Division

Cell Biology: Organelles and Cell Division

Test covering cell organelles (peroxisomes, chloroplasts, mitochondria, glyoxysomes), cell division phases, and cell structure components

15 Questions Published
Play Quiz Practise this topic out loud

Questions

Question 1 Multiple Choice (Single Answer)

In case of mitosis in 'Gnetum', which of the following is the correct explanation for the term ‘karyochoresis’?

  1. During cell division, the karyotheca disappears completely.
  2. During cell division, the karyotheca and the nucleolus disappear completely.
  3. During cell division, the karyotheca does not disappear.
  4. During cell division, the mitotic spindle is not formed.
Question 2 Multiple Choice (Single Answer)

Which of the following processes takes place during the G2 phase of cell division?

  1. Synthesis of RNA, proteins, nucleotides and amino acids
  2. Synthesis of factors required for initiation and completion of mitosis and checks for any abberrations resulting from DNA synthesis
  3. Synthesis of RNA and proteins leading to the growth of cell to normal size
  4. Synthesis of DNA leading to chromosomal replication
Question 3 Multiple Choice (Single Answer)

Which of the following is not a correct statement with reference to peroxisomes?

  1. They are also known as uricosomes.
  2. They help in the storage and transport of lipids in plants.
  3. They carry out photorespiration.
  4. They were first discovered in the liver cells and kidney cells.
Question 4 Multiple Choice (Single Answer)

Under high concentration of oxygen, which of the following physiological functions are performed by the chloroplasts of C-3 plants?

  1. Oxygenic photosynthesis
  2. Synthesise starch
  3. Photorespiration
  4. Anoxygenic photosynthesis
Question 5 Multiple Choice (Single Answer)

Which of the following components joins the adjacent doublets of the axoneme of the eukaryotic flagellum?

  1. Protofilament
  2. Sheath
  3. Dynein arm
  4. Nexin
Question 6 Multiple Choice (Single Answer)

Match the name of the scientist in column I to his contribution to cytology in column II.

  1. 1-(b), 2-(e), 3-(a), 4-(c)
  2. 1-(a), 2-(b), 3-(c), 4-(d)
  3. 1-(e), 2-(c), 3-(d), 4-(b)
  4. 1-(d), 2-(a), 3-(b), 4-(c)
Question 7 Multiple Choice (Single Answer)

Which of the following is the most suitable statement to justify 'the mesosomes of bacteria are equivalent to the mitochondria of eukaryotes'?

  1. These are double membraned organelles.
  2. These occur freely in the bacterial cytoplasm.
  3. These help in respiration in bacteria.
  4. These are self replicating organelles & can multiply, even when the cell is not dividing.
Question 8 Multiple Choice (Single Answer)

Name the cell organelle which is surrounded by a single unit membrane and contains two major enzymes namely isocitrate lyase and maltase synthetase.

  1. Glyoxysomes
  2. Lomasomes
  3. Spherosomes
  4. Peroxisomes
Question 9 Multiple Choice (Single Answer)

What concentration of magnesium ions is required for joining of ribosomes to form dimers?

  1. Mg++ ion concentration is 0.001 M
  2. Mg++ ion concentration is 0.01 M
  3. Mg++ ion concentration is less than 0.0001 M
  4. Mg++ ion concentration is more than 0.02 M
Question 10 Multiple Choice (Single Answer)

The general formula CnH2n-2x O2 represents

  1. carbohydrates
  2. saturated fatty acids
  3. unsaturated fatty acids
  4. monosaccharides
Question 11 Multiple Choice (Single Answer)

Miescher (1869) discovered the first nucleic acid and named it

  1. nucleotide
  2. nucleoid
  3. nucleic acid
  4. nuclein
Question 12 Multiple Choice (Single Answer)

Cell components can be physically separated from each other by

  1. perfusion
  2. centrifugation
  3. homogenation
  4. chromatography
Question 13 Multiple Choice (Single Answer)

Match the cell organelles in Column I with that of their enzymes in Column II.

  1. A – ii, B – iii, C – iv, D - i
  2. A – iii, B – iv, C – ii, D – i
  3. A – iv, B – iii, C – ii, D – i
  4. A – iv, B – ii, C – iii, D – i
Question 14 Multiple Choice (Single Answer)

Circular DNA is found in
A. E. coli and Mitochondria
B. Yeast only  
C. E.coli only
D. All the bacteria
E. Chloroplast

  1. A and E
  2. A, D and E
  3. D only
  4. B and E
Question 15 Multiple Choice (Single Answer)

Assertion (A) - Striated muscles show many nuclei in their muscle tissue.
Reason (R)- If karyokinesis is not followed by cytokinesis the cell becomes multinucleate or coenocytic or syncytial.

  1. Both Assertion and Reasoning are true and R is the correct explanation of A.
  2. Both Assertion and Reasoning are true and R is not the correct explanation of A.
  3. A is true and R is false.
  4. Both A and R is false.
← Back to Quizzes