Tag: structure and functions of living organisms -ii

Questions Related to structure and functions of living organisms -ii

The graph of electrical activity of heart versus time produced by non-invasive medical procedure is called 

biology structure and functions of living organisms -ii role of receptors in the mouth types of teeth circulatory system and organs

  1. Electro - cardiograph

  2. Electro - encephalograph

  3. Electro - cardiogram

  4. Electro - cardiography

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Correct Option: A
Explanation:

The graph of electrical activity of heart versus time produced by non-invasive medical procedure is called electrocardiograph. The process of recording the electrical activity of heart over a period of time is called as electrocardiography (ECG). The graph of electrical activity of brain versus time is called as electroencephalograph. The machine used to record the electrical activity of heart is called as electrocardiogram.

Thus, the correct answer is 'Electro - cardiograph.'

Match column I with column II and select the correct option from the codes given.

Column I Column II
A. Testis (i) Pigmentation
B. Ovaries (ii) Atrophies in adult
C. Thymus (iii) Estrogen
D. Melanin (iv) Testosterone
biology structure and functions of living organisms -ii role of receptors in the mouth types of teeth circulatory system and organs

  1. A-(iii), B-(iv), C-(i), D-(ii)

  2. A-(ii), B-(iii), C-(iv), D-(i)

  3. A-(iv), B-(iii), C-(ii), D-(i)

  4. A-(i), B-(iv), C-(ii), D-(iii)

Show answer
Correct Option: C
Explanation:
Testosterone is released from testis.
Estrogen is released by ovaries.
In the case of the thymus, the atrophy in an adult is observed.
Melanin is the reason for pigmentation.
So, the correct option is 'A-(iv), B-(iii), C-(ii), D-(I)'

Which of the following is true for Neurilemma?

evs structure and functions of living organisms -ii other systems in the body excretory system in human human excretory organs

  1. Discontinuous at nodes of Ranvier

  2. Continuous at nodes of Ranvier and made by schwann cells

  3. Discontinuous at nodes of Ranvier and made by schwann cells

  4. Continuous at nodes of Ranvier and made by oligodendrocytes

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Correct Option: B