EASY
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Which of the following statements is wrong about lymph?

I. Lymph is colorful as it has hemoglobin but no RBC.
II. The fluid present in the lymphatic system is called lymph.
III. It contains specialized lymphocytes which are responsible for the immunity of the body.
IV. Fats are absorbed through lymph in the lacteals present in the lymph nodes.

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Important Questions on Body Fluids and Circulation

MEDIUM
A person has 400 million alveoli per lung with an average radius of 0.1 mm for each alveolus. Considering the alveoli are spherical in shape, the total respiratory surface of that person is closest to
MEDIUM
Epithelial cells in animals are held by specialized junctions, one of them being "Gap junction". Function of a "Gap junction" is to
HARD
Given below are the four schematics that describe the dependence of the rate of an enzymatic reaction on temperature. Which of the following combination is true for thermophilic and psychrophilic organisms?

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HARD
Which type of tissue is correctly paired with its location?
EASY
The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in:
EASY
Which of the following statements is true about glandular epithelium in the salivary gland?
MEDIUM

The graph below depicts the velocity of an enzyme-catalyzed reaction vs. substrate concentration. Identify the alphabets with the correct descriptions.

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I. A= Enzyme activity

II. B= Substrate concentration at maximum velocity

III. A= Substrate concentration at which half of the maximum velocity

IV. B= Half of the maximum velocity

EASY
Which of the following is not a function of the skeletal system?
MEDIUM
Select the option which is not correct with respect to enzyme action:
MEDIUM
Which one of the following statements is TRUE?
EASY
Select the incorrectly matched pair from following:
EASY
Part of epidermis that keeps out unwanted particles is called:
EASY

Statement I : Tendons attach one bone with another bone.
Statement II : Epiglottis is formed by elastic cartilage.

The correct option among the following is

EASY
Assertion (A) : Skeletal muscle fibre is in syncytial state
Reason (R):  It is formed by fusion of cells
EASY
Study the following statements and identify the incorrect one
MEDIUM
Which of the following describes the given graph

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HARD
It is much easier for a small animal to run uphill than for a large animal, because: