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Test: Respiration, Nervous System, Brain & Eyes - UPSC MCQ


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10 Questions MCQ Test Science & Technology for UPSC CSE - Test: Respiration, Nervous System, Brain & Eyes

Test: Respiration, Nervous System, Brain & Eyes for UPSC 2024 is part of Science & Technology for UPSC CSE preparation. The Test: Respiration, Nervous System, Brain & Eyes questions and answers have been prepared according to the UPSC exam syllabus.The Test: Respiration, Nervous System, Brain & Eyes MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Respiration, Nervous System, Brain & Eyes below.
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Test: Respiration, Nervous System, Brain & Eyes - Question 1

Which of the following is NOT a method of respiration in vertebrates according to the text?

Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 1
The text mentions three methods of respiration in vertebrates: cutaneous (integumentary) respiration, aquatic respiration (as in fishes), and pulmonary (lung) respiration. Digestive respiration is not a method of respiration mentioned in the text.
Test: Respiration, Nervous System, Brain & Eyes - Question 2

Which pigment is responsible for carrying oxygen and carbon dioxide in human blood?

Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 2
In humans, the pigment responsible for carrying oxygen and carbon dioxide in the blood is haemoglobin, as mentioned in the text.
Test: Respiration, Nervous System, Brain & Eyes - Question 3

Which layer of the eyeball is responsible for containing rods and cones?

Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 3
The text states that the retina is the layer of the eyeball that contains two types of nerve cells: rods and cones, which are responsible for vision.
Test: Respiration, Nervous System, Brain & Eyes - Question 4
What is the primary function of the cerebral hemispheres in the brain, as per the text?
Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 4
According to the text, the cerebral hemispheres in the brain are responsible for functions like memory, consciousness, associations, imagination, and willpower, making memory storage a primary function.
Test: Respiration, Nervous System, Brain & Eyes - Question 5
What type of neurons carry impulses from the central nervous system to effector organs?
Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 5
According to the text, efferent (motor) neurons carry impulses from the central nervous system to effector organs.
Test: Respiration, Nervous System, Brain & Eyes - Question 6
What is the term for an immediate and rapid response to a stimulus without awareness, as mentioned in the text?
Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 6
The text defines a simple reflex as an immediate and rapid response to a stimulus without awareness.
Test: Respiration, Nervous System, Brain & Eyes - Question 7
What is the function of the sympathetic nervous system on stimulation, as per the text?
Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 7
According to the text, one of the functions of the sympathetic nervous system on stimulation is the constriction of blood vessels of the skin.
Test: Respiration, Nervous System, Brain & Eyes - Question 8
What type of vision do animals with mostly rods in their retinas have?
Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 8
Animals with mostly rods in their retinas, such as owls, have poor night vision, as mentioned in the text.
Test: Respiration, Nervous System, Brain & Eyes - Question 9
What is the primary function of the cornea in the eye?
Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 9
The text states that the cornea is a transparent membrane that protects the eyeball.
Test: Respiration, Nervous System, Brain & Eyes - Question 10
Which layer of the eyeball forms the anterior aqueous chamber and posterior vitreous chamber?
Detailed Solution for Test: Respiration, Nervous System, Brain & Eyes - Question 10
According to the text, the choroid layer of the eyeball forms the anterior aqueous chamber (filled with aqueous humor) and the posterior vitreous chamber (filled with vitreous humor).
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