1. A goitre is also called as?
[A] Bronchocele
[B] Larynx
[C] autoimmune disease
[D] inflammation
Show Answer
Correct Answer: A [Bronchocele]
Notes:
A goitre which is also called a bronchoce is a swelling in the neck. It is commonly developed as a result of iodine deficiency or the inflammation of the thyroid gland.
2. Theory of natural selection was proposed by ?
[A] Mendel
[B] Darwin
[C] Lamarck
[D] Karl Landsteiner
Show Answer
Correct Answer: B [Darwin]
Notes:
Theory of natural selection was proposed by Darwin.The theory is an explanation for adaptation and speciation. He defined natural selection as the “principle by which each slight variation [of a trait], if useful, is preserved”.
3. For respiration in deep sea, divers use mixture of:
[A] Oxygen and helium
[B] Oxygen and hydrogen
[C] Oxygen and carbon dioxide
[D] Oxygen, Helium & nitrogen
Show Answer
Correct Answer: D [Oxygen, Helium & nitrogen]
4. What is the primary role of lipids in the body?
[A] provide energy for muscles and body processes
[B] maintain normal blood volume and normal water content in interstitial fluid
[C] extract waste from blood, balance body fluids, form urine
[D] produce certain proteins for blood plasma
Show Answer
Correct Answer: A [ provide energy for muscles and body processes]
Notes:
The primary role of lipids in the body is to provide energy for muscles and body processes.
5. In human body, where do you find the Cone cells and Rod cells?
[A] Retina of the eye
[B] Gallbladder
[C] Esophagus
[D] Villi in the small intestine
Show Answer
Correct Answer: A [ Retina of the eye]
Notes:
Cone cells and Cone cells are one of three types of photoreceptor cells in the retina of the eye. They are responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light.
6. What does the term “Zoophyte”, in biological context, refer to?
[A] A plant that visually resembles an animal
[B] An animal that visually resembles a plant
[C] A plant that grows on an animal
[D] An animal that grows on a plant
Show Answer
Correct Answer: B [An animal that visually resembles a plant]
Notes:
In biology, Zoophytes are organisms that exhibit characteristics of both animals and plants, although they are animals. They have plant-like appearance and perform photosynthesis, but belong to the animal kingdom. The term is commonly used to describe certain types of marine life, such as sea anemones and corals. These organisms are often static and have similar systems of feeding and growth as certain plant species. Zoophytes display an extraordinary demonstration of nature’s capacity for variation and adaptation.
7. Which of the following cells are closely associated and interacting with guard cells?
[A] Transfusion tissue
[B] Complementary cells
[C] Subsidiary cells
[D] Hypodermal cells
Show Answer
Correct Answer: C [Subsidiary cells]
Notes:
Subsidiary cells are the accessory cells to guard cells in the epidermis of plants. Two or four subsidiary cells are found surrounding the pair of guard cells. Subsidiary cells do not consist of chloroplasts. They provide support for the functioning of guard cells in the epidermis.
8. Triple Antigen IPV immunizes against three diseases. Which of the following is not immunized by ‘Triple Antigen’?
[A] Typhoid
[B] Whooping cough
[C] Tetanus
[D] Diphtheria
Show Answer
Correct Answer: A [Typhoid]
Notes:
DPT is a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough), and tetanus. The vaccine components include diphtheria and tetanus and killed whole cells of the bacterium that causes pertussis. Diptheria is a highly contagious bacterial infection typically affecting the throat and tonsils with the formation of a thick grey membrane over those areas. Tetanus is bacteria which lives in soil and contaminates wounds, where it produces a powerful toxin, the toxin attacks the nervous system causing increasing muscle spasm and rigidity. Whooping Cough is one of the most contagious bacterial infections known. Beginning with a runny nose and sore throat, it progresses to a severe spasmodic cough which persists for around 3 months.
9. Which of the following clearly defines Chlorophyll?
[A] Halogen acid
[B] A green pigment found in the plants
[C] A chloro-organic compound
[D] Element
Show Answer
Correct Answer: B [A green pigment found in the plants]
Notes:
Chlorophyll is a green photosynthetic pigment found in plants, algae, and cyanobacteria. Chlorophyll absorbs mostly in the blue and to a lesser extent red portions of the electromagnetic spectrum, hence its intense green color.
10. Which of the following is the reason behind when one enters a dark room; he is not able to see anything but after some time his vision improves?
[A] The retina of the eye comes forward
[B] The retina of the eye moves backward
[C] The pupil of the eye contracts
[D] The pupil of the eye dilates
Show Answer
Correct Answer: D [The pupil of the eye dilates]
Notes:
Our eyes cannot see everything clearly when we enter a dark room from a bright light. This is due to the reason that in dark room the pupil is large so when we come out in bright light, a large amount of light enters our eyes and we feel glare.
