Which one of the following statements is correct regarding blood pressure?
1.
100/55 mmHg is considered an ideal blood pressure
2.
105/50 mmHg makes one very active
3.
190/110 mmHg may harm vital organs like the brain and kidney
4.
130/90 mmHg is considered high and requires treatment
| 1. | 100/55 mmHg is considered an ideal blood pressure |
| 2. | 105/50 mmHg makes one very active |
| 3. | 190/110 mmHg may harm vital organs like the brain and kidney |
| 4. | 130/90 mmHg is considered high and requires treatment |
Given ahead is an incomplete table about certain hormones, their source glands and one major effect of each on the body in humans. Identify the correct option for the three blanks A, B and C.
| Gland | Secretion | Effect on Body |
| A | Oestrogen | Maintenance of secondary sexual characters |
| Alpha cells of islets of Langerhans | B | Raises blood sugar level |
| Anterior pituitary | C | Oversecretion leads to gigantism |
| Options: | A | B | C |
| 1. | Placenta | Insulin | Vasopressin |
| 2. | Ovary | Insulin | Calcium |
| 3. | Placenta | Glucagon | Calcitonin |
| 4. | Ovary | Glucagon | Growth hormone |
| 1. | the typhlosole greatly increases the effective absorption area of the digested food in the intestine |
| 2. | the S-shaped setae embedded in the integument are the defensive weapons used against the enemies |
| 3. | it has a long dorsal tubular heart |
| 4. | fertilization of eggs occurs inside the body |
1. Propane
2. Mustard gas
3. Marsh gas
4. Laughing gas
Two friends are eating together at a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of:
| 1. | diaphragm | 2. | neck |
| 3. | tongue | 4. | epiglottis |
The figure given below shows a small part of the human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function?
| 1. | A – Alveolar cavity – main site of exchange of respiratory gases |
| 2. | D – Capillary wall – exchange of O2 and CO2 takes place here |
| 3. | B – Red blood cell – transport of CO2 mainly. |
| 4. | C – Arterial capillary – passes oxygen to tissues |
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from:
1. epididymis to vas deferens
2. ovary to uterus
3. vagina to uterus
4. testis to epididymis
1. Rhizobium
2. Frankia
3. Anabaena
4. Glomus
1. mangroves
2. tropical rainforests
3. alpine forests
4. temperate forests
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