Which of the following statements wrongly represents the nature of smooth muscle?
1. | Communication among the cells is performed by intercalated discs. |
2. | These muscles are present in the wall of blood vessels. |
3. | These muscles have no striations. |
4. | They are involuntary muscles. |
Following are the statements about prostomium of earthworm.
(a) | It serves as a covering for mouth. |
(b) | It helps to open cracks in the soil into which it can crawl. |
(c) | It is one of the sensory structures. |
(d) | It is the first body segment. |
Choose the correct answer from the options given below:
1. (a), (b), (c) and (d) are correct
2. (b) and (c) are correct
3. (a), (b) and (c) are correct
4. (a), (b) and (d) are correct
Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules.
1. Adhering junctions and Tight junctions, respectively.
2. Adhering junctions and Gap junctions, respectively.
3. Gap junctions and Adhering junctions, respectively.
4. Tight junctions and Gap junctions, respectively.
Identify the structure in a male cockroach where the sperms are stored?
1. A
2. B
3. C
4. D
Neuroglial cells are associated with:
1. Heart
2. Kidney
3. Brain
4. Eyes
The four sketches (A, B, C, and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its correct location and function?
Tissue | Location | Function | ||
1. | (C) | Collagen fibres | Cartilage | Attach skeletal muscles to bones |
2. | (D) | Smooth muscle tissue | Heart | Heart contraction |
3. | (A) | Columnar epithelium | Nephron | Secretion and absorption |
4. | (B) | Glandular epithelium | Intestine | Secretion |
Given below is the diagrammatic sketch of a certain type of connective tissue. Identify the parts labeled A, B, C, and D and select the right option for them:
Part-A | Part-B | Part-C | Part-D | |
1. | Mast cell | Macrophage | Fibroblast | Collagen fibres |
2. | Macrophage | Collagen fibres | Fibroblast | Mast cell |
3. | Mast cell | Collagen fibres | Fibroblast | Macrophage |
4. | Macrophage | Fibroblast | Collagen fibres | Mast cell |
Select the incorrectly matched pair from the following:
1. Chondrocytes - Smooth muscle cells
2. Neurons - Nerve cells
3. Fibroblast - Areolar tissue
4. Osteocytes - Bone cells
Match the following.
Column I |
Column II |
A. Phallomere B. Gonopore C. Spermatophore D. Ovarioles |
1. Chain of developing ova 2. Bundles of sperm 3. Opening of the ejaculatory duct 4. The external genitalia |
Codes
Options: | A | B | C | D |
1. | 3 | 4 | 2 | 1 |
2. | 4 | 3 | 2 | 1 |
3. | 4 | 2 | 3 | 1 |
4. | 2 | 4 | 3 | 1 |
Which one of the following statements is true for cockroach?
1. The number of ovarioles in each ovary are ten
2. The larval stage is called caterpillar
3. Anal styles are absent in females
4. They are ureotelic