1. The terms Hypoglycemia and Hyperglycemia are related to which among the following?
[A] Body Fat
[B] Blood Sugar
[C] Metabolism of sugar galactose
[D] Respiration
Show Answer
Correct Answer: B [Blood Sugar]
Notes:
Hypoglycemia: low blood sugar
Hyperglycemia: High blood sugar
2. Beriberi is a result of deficiency of which of the following?
[A] Riboflavin
[B] Thaimine
[C] Pyridoxine
[D] Cobalamine
Show Answer
Correct Answer: B [Thaimine]
Notes:
Vitamine B (Thiamine) deficiency produces beriberi, Wernicke-Korsakoff syndrome, and optic neuropathy.
Beriberi is a neurological and cardiovascular disease. The three major forms of the disorder are dry beriberi, wet beriberi, and infantile beriberi. Dry beriberi is characterized principally by muscular dysfunctions, while Wet beriberi is associated with mental confusion, muscular atrophy, edema. Infantile beriberi occurs in infants breast-fed by thiamin-deficient mothers.
3. In which of the following conditions a person is born with both ovarian and testicular tissues i.e. both female & male organs?
[A] Swyer syndrome
[B] Penile agenesis
[C] Polyorchidism
[D] Hermaphroditism
Show Answer
Correct Answer: D [Hermaphroditism]
Notes:
A hermaphrodite is an organism that has complete or partial reproductive organs and produces gametes normally associated with both male and female sexes. It has both ovarian and testicular tissues.
4. Non-vascular embryophytes are __:
[A] Pteridophytes
[B] Algae
[C] Bryophytes
[D] Gymnosperms
Show Answer
Correct Answer: C [Bryophytes]
Notes:
Bryophytes are an informal group consisting of three divisions of non-vascular land plants: the liverworts, hornworts and mosses. They play a vital role in regulating ecosystems because they provide an important buffer system for other plants.
5. Why does running up stairs make a person feel more tired than walking?
[A] He does more work when running than walking
[B] His power output is greater when running than walking
[C] His gravitational force is greater when running
[D] He has more inertia when running than walking
Show Answer
Correct Answer: B [His power output is greater when running than walking]
Notes:
Running up stairs requires the same work but in less time, increasing power output. Higher power leads to more rapid energy use, causing greater fatigue. Work (energy) is force times distance, but power is work divided by time, which is higher when running.
6. Typhoid fever is caused by which of the following?
[A] Allergy
[B] Fungus
[C] Bacteria
[D] Virus
Show Answer
Correct Answer: C [Bacteria]
Notes:
Typhoid fever is a systemic infection caused by bacteria Salmonella typhi, usually through ingestion of contaminated food or water. The acute illness is characterized by prolonged fever, headache, nausea, loss of appetite, and constipation or sometimes diarrhoea.
7. HIV often changes its shape due to the presence of which of the following enzymes?
[A] Reverse Transcriptase
[B] Enterokinase
[C] Nucleoditase
[D] None of the above
Show Answer
Correct Answer: A [Reverse Transcriptase]
Notes:
A reverse transcriptase is an enzyme used to generate complementary DNA from an RNA template, a process termed reverse transcription. The viral DNA is cut and paste into the host cell DNA. The host cell gets tricked into making lots of proteins for the virus.
8. Snakes, turtle, lizards and crocodiles falls under which category of animals?
[A] Amphibian
[B] Pisces
[C] Reptiles
[D] Aves
Show Answer
Correct Answer: C [Reptiles]
Notes:
Reptiles are tetrapod animals in the class Reptilia, comprising today’s turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives. The study of these traditional reptile orders, historically combined with that of modern amphibians, is called herpetology
9. Auxiliary bud develops into which of the following parts of the plant?
[A] Fruit
[B] Leaf
[C] Roots
[D] Branch
Show Answer
Correct Answer: D [Branch]
Notes:
The axillary bud is a bud that develops in the axil of a leaf of a plant (synonymous with lateral bud). Axillary buds develop from the nodes which then becomes a new stem.
10. Which of the following is the best reason behind the fact that bats can fly in the dark?
[A] Bats have a better vision in the dark
[B] The light startles them
[C] Bats produce high pitched sounds ultrasonic
[D] None of the above
Show Answer
Correct Answer: C [Bats produce high pitched sounds ultrasonic]
Notes:
The sounds that bats make are so high pitched that humans cannot hear them. High pitched sounds like this are called ultrasound. So, bats make high pitched squeaks while they fly. The echoes travel back to the bat and it can then tell how far away the objects are.
Bats use echoes or reflected sounds to determine the surrounding situation and to locate their prey. Often we see the bats fly at night. They fly in the dark so quickly without hitting anything. This process is called echolocation.
