1. Which among the following in Human Heart is / are responsible for contractions that send the blood through the circulation?
[A] Left Atrium
[B] Both Atria
[C] Right Ventricle
[D] Both Ventricles
Show Answer
Correct Answer: D [Both Ventricles]
Notes:
Each half of the heart has two chambers: an atrium, and a lower chamber called the ventricle. The function of the ventricles is to pump blood into systemic and pulmonary circulations.
2. Gout which is usually followed / accompanied by arthritis are characterized by high levels of uric acid in the blood and uric acid crystals become lodged in the joints. It is a ________?
[A] Viral Infection
[B] Metabolic Disorder
[C] Muscle Disorder
[D] Bacterial infection
Show Answer
Correct Answer: B [Metabolic Disorder]
Notes:
Gout is a metabolic disorder which is usually followed / accompanied by arthritis are characterized by high levels of uric acid in the blood and uric acid crystals become lodged in the joints.
3. Which of the following vertebrae are found in Neck ?
[A] Cervical
[B] Thoracic
[C] Lumbar
[D] None
Show Answer
Correct Answer: A [Cervical]
Notes:
Cervical vertebrae are found in neck. The cervical vertebrae of the spine is consisted of seven bony rings that reside in the neck between the base of the skull and the thoracic vertebrae in the trunk.
4. How many vertebrae does a human being have ?
[A] 33
[B] 36
[C] 29
[D] 19
Show Answer
Correct Answer: A [33]
Notes:
The vertebral column usually consists of 33 vertebrae: 24 presacral vertebrae (7 cervical, 12 thoracic, and 5 lumbar) followed by the sacrum (5 fused sacral vertebrae) and the coccyx (4 frequently fused coccygeal vertebrae).
5. Which among the following contributes to the replenishment of soil?
[A] Bacteria
[B] Fungi
[C] Algae
[D] Earthworm
Show Answer
Correct Answer: D [Earthworm]
Notes:
Earthworm contributes to the replenishment of soil. As the earthworm moves through the soil, it creates burrows. This allows air and water to move more readily through the soil. The worms also feed on the decaying organic matter, which helps to improve soil fertility.
6. A treatment with which among the following plant hormones would prevent water loss from the plant leaves, by reducing transpiration, in times of low water availability?
[A] Ethylene
[B] Abscisic Acid
[C] Gibberelic Acid
[D] Auxin
Show Answer
Correct Answer: B [Abscisic Acid]
Notes:
A treatment with abscisic acid would prevent water loss from the plant leaves, by reducing transpiration, in times of low water availability.
7. Brachytherapy is commonly used as an effective treatment for cervical, prostate, breast, and skin cancer in many parts of the world. Why Brachytherapy is an offshoot of which among the following forms of Cancer Treatment?
[A] Radiotherapy
[B] Chemotherapy
[C] Surgery
[D] None of them,
Show Answer
Correct Answer: A [Radiotherapy]
Notes:
Brachytherapy is commonly used as an effective treatment for cervical, prostate, breast, and skin cancer in many parts of the world. Brachytherapy is an offshoot of Radiotherapy.
8. Which among the following nitrogenous wastes requires the least water for its excretion?
[A] Ammonia
[B] Urea
[C] Nitrites
[D] Uric Acid
Show Answer
Correct Answer: D [ Uric Acid]
Notes:
Uric acid is not soluble in water and is excreted as a dry crystal by the animal’s digestive system. Ammonia is the most toxic nitrogenous waste and must be excreted in large volumes of water.
9. Root hair in plants are produced from which of the following?
[A] cortex
[B] pericycle
[C] epidermis
[D] endodermis
Show Answer
Correct Answer: C [epidermis]
Notes:
Cells of the epidermis produce root hairs near the root apex. These cells are generally thin-walled, in contrast to the cells of the cortex, lying below the surface, which ultimately may become very thick-walled. The root hairs have fundamental importance in absorption of water and nutrients.
10. Who among the following proposed the Five Kingdom Classification?
[A] R.H. Whittaker
[B] Linnaeus
[C] Carl Woese
[D] Smith Fox
Show Answer
Correct Answer: A [R.H. Whittaker]
Notes:
R.H. Whittaker proposed an elaborated five kingdom classification. He was the first to propose the five-kingdom of organisms taxonomic classification of the world’s biota into the Animalia, Plantae, Fungi, Protista, and Monera in 1969. He also proposed the Whittaker Biome Classification, which categorized biome-types upon two abiotic factors: temperature and precipitation.
