Q. No.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 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 |
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 cell organelles is present in the highest number in secretory cells?
| 1. | Mitochondria | 2. | Golgi complex |
| 3. | Endoplasmic reticulum | 4. | Lysosomes |
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 shorter and longer arms of submetacentric chromosome are referred to as:
1. m-arm and n-arm respectively
2. s-arm and l-arm respectively
3. p-arm and q-arm respectively
4. q-arm and p-arm respectively
The concept of "Omnis cellula-e-cellula" regarding cell division was first proposed by:
1. Aristotle
2. Rudolf Virchow
3. Theodor Schwann
4. Schleiden
Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?
| 1. | Peroxisomes | 2. | Golgi bodies |
| 3. | Polysomes | 4. | Endoplasmic reticulum |
Which of the following statements about inclusion bodies is incorrect?
| 1. | These are involved in the ingestion of food particles. |
| 2. | They lie freely in the cytoplasm. |
| 3. | These represent reserve material in cytoplasm. |
| 4. | They are not bound by any membrane. |
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