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 size of Pleuro Pneumonia Like Organism (PPLO) is:
1. 0.02 m
2. 1-2 m
3. 10-20 m
4. 0.1 m
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. |