TNPSC Biology - Cell Biology
Exam Duration: 45 Mins Total Questions : 30
Which of the following is correct sequence of the different phase of cell division?
1. Anaphase 2. Telophase
3. Prophase 4. Metaphase
- (a)
3, 1, 4 and 2
- (b)
1, 3, 2 and 4
- (c)
3, 4, 1 and 2
- (d)
1, 2, 3 and 4
Suicidal bag of cell is
- (a)
Lysosome
- (b)
Ribosomes
- (c)
Nucleosomes
- (d)
Golgi bodies
Consider the following statements regarding osmosis in animal cells
1. If the water potential of the solution surrounding the cell is too high, the cell shrinks.
2. If the water potential of the solution surrounding the cell is too low, the cell swells and bursts.
3. It is important to maintain a constant water potential inside the animal body.
4. In animal cells, water potential far exceeds the solute potential.
Which of the statements given above is/are correct?
- (a)
1 and 2
- (b)
Only 3
- (c)
Only 4
- (d)
2 and 3
Consider the following statements.
1. Mitochondria is also called Power House of the Cell.
2. Mitochondria are storehouses of ATP.
3. Energy currency of cell is ATP.
4. Krebs' cycle takes place in mitochondria.
Which of the statements above are false?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1, 2, 3 and 4
- (d)
None of these
Which of the following organelles of a cell is/are involved in photosynthesis?
- (a)
Chloroplast
- (b)
Mitochondrion
- (c)
Endoplasmic reticulum
- (d)
Golgi bodies
How many cells and meiosis are needed to produce 200 cells?
- (a)
100 and 50 respectively
- (b)
25 and 50 respectively
- (c)
50 and 25 respectively
- (d)
50 and 50 respectively
The yellow and orange colour of fruits and flowers are mainly due to
- (a)
Leucoplasts
- (b)
Chloroplast
- (c)
Aleuroplast
- (d)
Chromoplast
Consider the given cell organelles.
1. Mitochondria
2. Plastids
3. Ribosome
Which of the cell organelle(s) given above is/are common in both plant and animal cells?
- (a)
1, 2 and 3
- (b)
1 and 2
- (c)
1 and 3
- (d)
Only 2
Which of the following are called 'suicidal bags' of the cell?
- (a)
Lysosome
- (b)
Ribosome
- (c)
Oxysome
- (d)
Nucleosome
Consider the following statements
1. Desmosomes attaches cytoskeleton of one cell to the cytoskeleton of other cells.
2. Gap junction allow the passage of small molecules and ions requires for rapid communication but do not allow the passage of larger molecules like proteins.
Which of the statement(s) given above is/are correct about cell junctions?
- (a)
Only 1
- (b)
Only 2
- (c)
1 and 2
- (d)
None of these
Match List I with List II and select the correct answer using the codes given below the lists.
List I | List II |
A. Nucles | 1. De Duve |
B. Chromosomes | 2. Benda |
C. Mitochondria | 3. Waldeyer |
D. Lysosome | 4. Robert Brown |
- (a)
A B C D 4 3 2 1 - (b)
A B C D 3 2 1 4 - (c)
A B C D 2 1 4 3 - (d)
A B C D 1 4 3 2
Consider the following statements.
1. Endoplasmic Reticulum (ER) is called as 'skeleton of cell'.
2. ER is divided into three types according to presence or absence of ribosome.
3. Smooth ER is rich in actively protein-secreting cells.
Which of the statement(s) given above is/are correct?
- (a)
Only 1
- (b)
1 and 2
- (c)
2 and 3
- (d)
Only 3
Consider the following statements.
1. Lysosomes have hydrolytic enzymes.
2. Lysosomes are autophagic.
3. Lysosome can dissolve proteins, lipids and carbohydrates.
4. All lysosomes are same structurally and functionally.
Which of the statement(s) given above is/are correct?
- (a)
Only 1
- (b)
1 and 2
- (c)
1, 2 and 3
- (d)
1, 2, 3 and 4
Which one of the following is the principal structural elements of a living cell?
- (a)
Oxygen
- (b)
Hydrogen
- (c)
Carbon
- (d)
Nitrogen
Which of the following contain enzymes for cellular respiration?
- (a)
Dictyosomes
- (b)
Endoplasmic reticulum
- (c)
Lysosomes
- (d)
Mitochondria
Which one of the following contains powerful oxidative enzyme and helps in removing toxic substances from cells?
- (a)
Plastids
- (b)
Lysosomes
- (c)
Dictyosomes
- (d)
Peroxisomes
In a living cell, what is the site of ribosome formation?
- (a)
Golgi bodies
- (b)
Endoplasmic reticulum
- (c)
Plasma membrane
- (d)
Nucleolus
Statement I Two ATP molecules are produced during anaerobic respiration.
Statement II Glucose is converted into pyruvic acid through a series of reactions with a net gain of 2 ATP molecules.
- (a)
Both the statements are individually true and the Statements II is the correct explanation of the Statement I
- (b)
Both the statements are individually true, but the Statements II is not correct explanation of the statement I
- (c)
The Statement I is true, but the Statements II is false
- (d)
The Statement I is false, but the Statements II is true
The term 'Meiosis; was coined by
- (a)
Fleming
- (b)
Blackman
- (c)
Liebig
- (d)
Farmer Moore
Dynein is the unique protein of
- (a)
Ribosomes
- (b)
Flagella
- (c)
Lysosome
- (d)
Centrioles
Which organelles in the cell, other than nucleus contain DNA?
- (a)
Centriole
- (b)
Golgi apparatus
- (c)
Lysosomes
- (d)
Mitochondria
Consider the following statements
1. The plasma membrane of the animal cell is highly elastic. It is mainly due to the presence of lipids.
2. The chemical nature of carrier molecules facilitating transport across the plasma membrane is proteinaceous.
- (a)
Only 1
- (b)
Only 2
- (c)
1 and 2
- (d)
None of these
Consider the following statements.
1. Hofmeister discovered thread-like structures inside the nucleus of Tradescantia.
2. These thread-like structures studied by Flemming in nuclei of salamander cells.
3. Waldeyer named them Chromosomes.
Which of the statement(s) given above is/are correct about chromosomes?
- (a)
Only 1
- (b)
Only 2
- (c)
1 and 3
- (d)
1, 2 and 3
Mitochondria and chloroplasts are concerned with the transfer of cellular energy. Is this statement correct?
- (a)
Yes, it is correct
- (b)
No, mitochondria are but not chloroplast
- (c)
No, neither of them
- (d)
No, chloroplast are but not mitochondria
Main function of Golgi bodies is
- (a)
Respiration
- (b)
Cell division
- (c)
Percentage produce digestive enzyme
- (d)
Secretion
Study the following statements
1. Control room of the cell is Nucleus.
2. Nucleus was discovered by Robert Brown.
3. Nuclear envelope is absent in bacteria.
Which of the statement(s) given above is/are correct about nucleus?
- (a)
Only 1
- (b)
Only 2
- (c)
1 and 2
- (d)
1, 2 and 3
Which of the following stage is associated with the formation of chiasmata during meiotic cell division?
- (a)
Leptotene
- (b)
Zygotene
- (c)
Pachytene
- (d)
Diplotene
Consider the following cell organelles of the organisms
1. Mitochondria
2. Chloroplasts.
3. Endoplasmic Reticulum
- (a)
1, 2 and 3
- (b)
1 and 2
- (c)
2 and 3
- (d)
Only 3
Which chemical characteristic is not common in all living organisms?
- (a)
Type of protein present in body
- (b)
Similar triplet code for amino acid
- (c)
Energy is stored in high phosphate bonds
- (d)
Ribosomes are site of protein synthesis
Study the following statements.
1. Nucleolus takes part in synthesis of ribosomal RNA.
2. Leucoplast represent colourless plastids.
3. Mitochondria is absent in bacteria.
Which of the statements given above are true?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1, 2 and 3
- (d)
None of the above