Which one of the following structural formulae of two organic compounds are correctly identified along with its related function?
1. A- Triglyceride – a major source of energy
2. B- Uracil – a component of DNA
3. A- Lecithin – a component of cell membrane
4. B- Adenine – a nucleotide that makes up nucleic acids
A certain patient, X, is suspected to be suffering from acquired immune deficiency syndrome. Which diagnostic technique will you recommend for its detection?
1. | MRI | 2. | Ultra Sound |
3. | WIDAL | 4. | ELISA |
Which one of the following statements is correct for secondary succession?
1. | It occurs on a deforested site |
2. | It follows primary succession |
3. | It is similar to primary succession except that it has a relatively slow pace |
4. | All of the above |
1. egg
2. synergid
3. zygote
4. suspensor
Which one of the following pairs of gases are the cause of 'Greenhouse effect'?
1.
2.
3.
4.
1. | UNEP - United Nations Environmental Policy |
2. | EPA - Environmental Pollution Agency |
3. | IUCN -International Union for Conservation of Nature and Natural Resources |
4. | IPCC -International Panel for Climate Change |
1. | It shows the energy content of different trophic-level organisms |
2. | It is inverted in shape |
3. | It is upright in shape |
4. | Its base is broad |
Match the source gland with its respective hormone as well as the function.
Source gland |
Hormone | Function | |
(a) | Posterior pituitary |
Vasopressin | Stimulates reabsorption of water in the distal tubules in the nephron |
(b) | Corpus luteum |
Prolactin | Supports pregnancy |
(c) | Thyroid | Thyroxine | Regulates blood calcium level |
(d) | Anterior pituitary |
Oxytocin | Contraction of uterus muscles during childbirth |
1. (a)
2. (b)
3. (c)
4. (d)