31. What is the process of regulating body fluids and their composition?
[A] Secretion
[B] Reabsorption
[C] Glomerular Filteration
[D] Osmoregulation
Show Answer
Correct Answer: D [Osmoregulation]
Notes:
Osmoregulation is the process of regulating body fluids and their composition.
32. Which of the following is used to absorb fluids and salts remaining after the completion of intestinal digestion and absorption and to mix its contents with a lubricating substance, mucus?
[A] Cecum
[B] Colon
[C] Rectum
[D] None of these
Show Answer
Correct Answer: A [Cecum]
Notes:
The cecum is used to absorb fluids and salts remaining after the completion of intestinal digestion and absorption and to mix its contents with a lubricating substance, mucus.
33. The greater omentum connects the stomach to which structures?
[A] Spleen, transverse colon
[B] Spleen, ascending colon
[C] Spleen, descending colon
[D] Spleen, small bowel
Show Answer
Correct Answer: A [Spleen, transverse colon]
Notes:
The greater omentum connects the stomach to Spleen and transverse colon.
34. Which gland stimulates the adrenal gland to secrete cortisol?
[A] Pituitary gland
[B] Thyroid gland
[C] Parathyroid glands
[D] Adrenal glands
Show Answer
Correct Answer: A [Pituitary gland]
Notes:
The pituitary gland stimulates the adrenal gland to secrete cortisol. Cortisol is a steroid hormone.
35. Lassa and Ebola are emergent viruses in W. Africa. What is their origin?
[A] Humans
[B] Primates
[C] Fruit bats
[D] Pigs
Show Answer
Correct Answer: C [Fruit bats]
Notes:
Lassa and Ebola are emergent viruses in W. Africa originated by Fruit bats. Ebola hemorrhagic fever is caused by Ebola virus infection.
36. Which of the following is a Congenital Disease?
[A] Kwashiorkor
[B] Sickle-cell anemia
[C] Goitre
[D] Rheumatoid Arthritis
Show Answer
Correct Answer: B [Sickle-cell anemia]
Notes:
Sickle cell anemia is one of a group of hereditary disorders known as sickle cell diseases. It causes red blood cells to become misshapen and break down.
37. Biotechnology has been defined by which of the following?
[A] The European Federation of Biotechnology (EFB)
[B] National Center for Biotechnology Information (NCBI)
[C] National Institutes of Health (NIH)
[D] National Centre for Cell Science (NCCS)
Show Answer
Correct Answer: A [The European Federation of Biotechnology (EFB)]
Notes:
Biotechnology has been defined by The European Federation of Biotechnology (EFB).
38. Which of the following organism can transfer ‘T-DNA’ within plants?
[A] Agrobacterium tumifaciens
[B] E.coli
[C] Aspergillus niger
[D] S. typhi
Show Answer
Correct Answer: A [Agrobacterium tumifaciens]
Notes:
Agrobacterium tumefacient organism can transfer ‘T-DNA’ within the plant. It infects dicot plants.
39. The molecule which dissolves in water is called __
[A] hydrophilic molecule
[B] hydrophobic molecule
[C] soluble molecule
[D] insoluble molecule
Show Answer
Correct Answer: A [hydrophilic molecule]
Notes:
A molecule whose interaction with water and other polar substances is more thermodynamically favorable than their interaction with oil or other hydrophobic solvents is called a hydrophilic molecule.
40. Crossing-over occurs during ____:
[A] Diplotene
[B] Pachytene
[C] Leptotene
[D] Zygotene
Show Answer
Correct Answer: B [Pachytene]
Notes:
Chromosomal crossover (or crossing over) is the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes. It is one of the final phases of genetic recombination, which occurs during prophase I of meiosis (pachytene) during a process called synapsis.
