Match column I with column II.
Column I | Column II | ||
(a) | Golgi apparatus | (i) | Synthesis of protein |
(b) | Lysosomes | (ii) | Trap waste and excretory products |
(c) | Vacuoles | (iii) | Formation of glycoproteins and glycolipids |
(d) | Ribosomes | (iv) | Digesting biomolecules |
Choose the right match from the options given below:
Options: | (a) | (b) | (c) | (d) |
1. | (iii) | (iv) | (ii) | (i) |
2. | (iv) | (iii) | (i) | (ii) |
3. | (iii) | (ii) | (iv) | (i) |
4. | (i) | (ii) | (iv) | (iii) |
Which of the following nucleic acids is present in an organism having 70 S ribosomes only?
1. | Single-stranded DNA with a protein coat |
2. | Double-stranded circular naked DNA |
3. | Double-stranded DNA enclosed in nuclear membrane |
4. | Double-stranded circular DNA with histone proteins |
Non-membranous nucleoplasmic structures in the nucleus, are the sites for active synthesis of:
1. | protein | 2. | mRNA |
3. | rRNA | 4. | tRNA |
Which of the following statements is not correct?
1. | Lysosomes are formed by the process of packaging in the endoplasmic reticulum. |
2. | Lysosomes have numerous hydrolytic enzymes |
3. | The hydrolytic enzyme of lysosomes are active under acidic pH |
4. | Lysosomes are membrane bound structure. |
Which of the following pair of organelles does not contain DNA?
1. | Nuclear envelope and Mitochondria |
2. | Mitochondria and Lysosomes |
3. | Chloroplast and Vacuoles |
4. | Lysosomes and vacuoles |
The concept of "Omnis cellula-e-cellula" regarding cell division was first proposed by:
1. Aristotle
2. Rudolf Virchow
3. Theodor Schwann
4. Schleiden
Select the wrong statement from the following:
1. | Both chloroplast and mitochondria contain an inner and an outer membrane. |
2. | Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane. |
3. | Both chloroplasts and mitochondria contain DNA. |
4. | The chloroplasts are generally much larger than mitochondria. |
Which one of the following is not a constituent of the cell membrane?
1. Cholesterol
2. Glycolipids
3. Proline
4. Phospholipids
1. | is membrane-bound and contains storage proteins and lipids |
2. | is membrane-bound and contains water and excretory substances |
3. | lacks membrane and contains air |
4. | lacks membrane and contains water and excretory substances |
1. | several ribosomes attached to a single mRNA |
2. | many ribosomes attached to a strand of endoplasmic reticulum |
3. | a ribosome with several subunits |
4. | ribosomes attached in a linear arrangement |