The cells lining the blood vessels belong to the category of:
1. Connective tissue
2. Smooth muscle tissue
3. Squamous epithelium
4. Columnar epithelium
The 24-hours (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone:
1. melatonin
2. calcitonin
3. prolactin
4. adrenaline
Three of the following pairs of the human skeletal parts are correctly matched with their respective inclusive skeletal category and one pair is not matched. Identify the non-matching pair.
|
Pairs of skeletal parts |
Category |
|
|
1. |
Malleus and stapes |
Ear ossicles |
|
2. |
Sternum and Ribs |
Axial skeleton |
|
3. |
Clavicle and Glenoid cavity |
Pelvic girdle |
|
4. |
Humerus and ulna |
Appendicular skeleton |
Which one of the following structure in Pheretima is correctly matched with its function?
1. Typhlosole - storage of extra nutrients
2. Clitellum - secretes cocoon
3. Gizzard - absorbs digested food
4. Setae - defence against predators
Ureters act as urinogenital ducts in:
| 1. | frog's males |
| 2. | human males |
| 3. | human females |
| 4. | frogs, both males and females |
One of the constituents of the pancreatic juice, while poured into the duodenum in humans is:
1. Enterokinase
2. Trypsinogen
3. Chymotrypsin
4. Trypsin
Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?
| 1. | The lungs can be made fully empty by forcefully breathing out all air from them |
| 2. | One can breathe out air totally without oxygen |
| 3. | One can breathe out air through Eustachian tubes by closing both the nose and the mouth. |
| 4. | One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all. |
What happens during fertilisation in humans after many sperms reach close to the ovum?
| 1. | Only two sperms nearest the ovum penetrate zona pellucida |
| 2. | Secretions of acrosome help one sperm enter the cytoplasm of the ovum through zona pellucida |
| 3. | All sperms except the one nearest to the ovum lose their tails |
| 4. | Cells of corona radiata trap all the sperms except one |
The technique called gamete intrafallopian transfer (GIFT) is recommended for those females:
| 1. | who cannot provide a suitable environment for fertilisation |
| 2. | who cannot produce an ovum |
| 3. | who cannot retain the foetus inside uterus |
| 4. | whose cervical canal is too narrow to allow passage for the sperms |
Consider the following four statements (A-D) related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which ones are false (F).
Statements:
| (A) | On dry land, it would die due to lack of O2 if its mouth is forcibly kept closed for a few days |
| (B) | It has a four-chambered heart |
| (C) | On dry land, it turns uricotelic from ureotelic |
| (D) | Its life history is carried out in pond water |
| (A) | (B) | (C) | (D) | |
| 1. | F | T | T | F |
| 2. | T | F | F | T |
| 3. | T | T | F | F |
| 4. | F | F | T | T |
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