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(1) Negative feedback mechanism is the process in which product of a reaction is opposite to that of initiating stimulus. Which of the following is its example

Action potential

Blood pressure regulation

Coagulation of blood

Labor

LH surge

(2) The example of useful positive feedback mechanism in the body includes

Child birth

Regulation of body temperature

Regulation of blood pressure

Regulation of oxygen levels in the blood

Regulation levels in blood

(3) Excessive formation of a substance secretion by the initial stimulus in the body is controlled to maintain homeostasis by

+ve feedback mechanism

Negative feedback mechanism

Osmosis

Hemodynamics

Diffusion

(4) The approximate extracellular fluid volume in a normal individual is

5% of body mass

10% of body mass

20% of body mass

40% of body mass

60% of body mass

(5) Positive feedback mechanism

Regulates level of a substance in the body fluids

Is useful in maintaining hormonal levels in the blood

Can lead to a vicious cycle

Decreases the cause or the initiating stimulus

Is used in pressure regulation

(6) In order to accomplish homeostasis positive feedback mechanism

Response should be opposite to the initial stimulus

Response should strengthen the initial stimulus

Response and stimulus both can interchange

Stimulus is opposite to the response at end

Response is neutralized by the stimulus

(7) A person standing outside in a cold weather starts to shiver. Shivering on exposure to cold is the result of

Positive feedback mechanism

Negative feedback mechanism

Feed forward control mechanism

Activation of warmth receptor

Deactivation of Temperature regulation center

(8) To get rid of metabolic waste products like urea and uric acid, is important for maintaining internal environment relatively constant. Which of the following organ system in human body plays major role to accomplish above mentioned homeostatic function

Gastrointestinal tract

Integumentary system

Musculoskeletal system

Respiratory system

Urinary system

(9) Human body is equipped with different types of control systems, which are specialized to detect the change in stimulus and bring about compensatory response. When a person is exposed to extremely cold weather, shivering is a response elicited by which of the following above mentioned systems

Adaptive response

Anticipatory response

Feed forward response

Negative response

Positive feed back

(10) The term "milieu interieur" refers to which body fluid

Intracellular fluid

Interstitial fluid

CSF

Extracellular fluid

Cytoplasm

(11) The volume of intracellular fluid is

3 liters

11 liters

15 liters

28 liters

42 liters

(12) Normal range of blood pH is:

7-7.7

7.1-7.6

7.3-7.5

7.2-7.4

7.5-7.9

(13) Intracellular fluid is deficient in

Sodium

Potassium

Magnesium

Phosphate

Proteins

(14) The gain of the system controlling body temperature is above

-2

-20

-25

-30

-45

(15) Milieu interieur is the term which was introduced in 19th century by one of the following

William Harvey

Robert Boyle

Claude Bernard

Hans Seyle

Schleiden

(16) Homeostasis is

The maintenance of nearly constant external environment

The maintenance of nearly constant ionic gradient

The maintenance of nearly constant internal environment

The process of arrest of bleeding

The process of formation of platelet