set 2 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 6 EXERCISES
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The following question based on physiology of plants, humans and animals topic of general science mcq
(a) $2/2, 1/1, 3/2, 3/3$
(b) $3/3, 1/1, 3/2, 1/1$
(c) $2/2, 1/1, 2/2, 3/3$
(d) $3/3, 1/1, 3/3, 3/3$
The correct answers to the above question in:
Answer: (c)
The adult dental formula of human is Incisor $2/2$, Canine $1/1$, Premolar $2/2$, Molar $3/3$.
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Read more biology Based General Science Questions and Answers
Question : 1
If a cell swells, after being placed in solution, the solution is
a) hypotonic
b) hypertonic
c) neutral
d) isotonic
Answer »Answer: (a)
If a cell swells, after being placed in solution, the solution is called Hypotonic.
Question : 2
Antibodies are
a) immunoglobulins
b) carbohydrates
c) globular proteins
d) extrinsic proteins
Answer »Answer: (a)
Antibodies are immunoglobulins (Igs) which are produced in response to antigenic stimulation.
Question : 3
Stomata open and close due to
a) genetic clock
b) pressure of gases inside the leaves
c) circadian rhythm
d) turgor pressure of guard cells
Answer »Answer: (d)
Turgor pressure is the pressure that develops in a cell due to the osmotic diffusion of water inside it and is responsible for pushing the membrane against the cell wall.
Stomata open under conditions of increased turgor pressure of guard cells and stomata get closed under conditions of decreased turgor pressure of guard cells.
When turgid, they swell and bend outward. As a result, the stomatal aperture opens. When they are flaccid, the tension from the wall is released and the stomatal aperture closes.
Question : 4
Which part of the alimentary canal does not secrete any enzyme?
a) Oesophagus
b) Mouth
c) Stomach
d) Duodenum
Answer »Answer: (a)
Question : 5
Which tissue does lack blood supply and heals slowly ?
a) muscle
b) nervous
c) cartilage
d) bone
Answer »Answer: (c)
Question : 6
Thoracic cage is made up of
a) ribs, diaphragm & sternum
b) ribs, vertebral column & diaphragm
c) vertebral column, diaphragm & sternum
d) ribs, vertebral column & sternum
Answer »Answer: (d)
Rib cage consists of vertebral column (dorsal), sternum (ventral) and ribs (lateral).
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