Q. No.Which of the following is an incorrect statement?
1.
The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm.
2.
Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm.
3.
Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles.
4.
Microbodies are present both in plant and animal cells.
The organelles that are included in the endomembrane system are:
| 1. | Golgi complex, Mitochondria, Ribosomes, and Lysosomes |
| 2. | Golgi complex, Endoplasmic reticulum, Mitochondria, and Lysosomes |
| 3. | The endoplasmic reticulum, Mitochondria, Ribosomes, and Lysosomes |
| 4. | The endoplasmic reticulum, Golgi complex, Lysosomes, and Vacuoles |
Match List - I with List - II
| List -I | List - II | ||
| a. | Cristae | i. | Primary constriction in chromosome |
| b. | Thylakoids | ii. | Disc-shaped sacs in Golgi apparatus |
| c. | Centromere | iii. | Infoldings in mitochondria |
| d. | Cisternae | iv. | Flattened membranous sacs in stroma of plastids |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (i) | (iv) | (iii) | (ii) |
When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as :
1. Sub-metacentric
2. Acrocentric
3. Metacentric
4. Telocentric
Match the following columns and select the correct option:
| Column-I | Column-II | ||
| (a) | Smooth endoplasmic reticulum |
(i) | Protein synthesis |
| (b) | Rough endoplasmic reticulum |
(ii) | Lipid synthesis |
| (c) | Golgi complex | (iii) | Glycosylation |
| (d) | Centriole | (iv) | Spindle formation |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (ii) | (i) | (iii) | (iv) |
| 2. | (iii) | (i) | (ii) | (iv) |
| 3. | (iv) | (ii) | (i) | (iii) |
| 4. | (i) | (ii) | (iii) | (iv) |
The biosynthesis of ribosomal RNA occurs in:
1. Ribosomes
2. Golgi apparatus
3. Microbodies
4. Nucleolus
Inclusion bodies of blue-green, purple, and green photosynthetic bacteria are:
1. Contractile vacuoles
2. Gas vacuoles
3. Centrioles
4. Microtubules
Match List - I with List - II.
| List - I | List - II | ||
| (a) | Metacentric chromosome | (i) | Centromere situated close to the end forming one extremely short and one very long arms |
| (b) | Acrocentric chromosome | (ii) | Centromere at the terminal end |
| (c) | Sub-metacentric | (iii) | Centromere in the middle forming two equal arms of chromosomes |
| (d) | Telocentric chromosome | (iv) | Centromere slightly away from the middle forming one shorter arm and one longer arm |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (iii) | (i) | (iv) | (ii) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (ii) | (iii) | (iv) | (i) |
| Statement I: | Mycoplasma can pass through less than 1 micron filter size. |
| Statement II: | Mycoplasma are bacteria with cell walls. |
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
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