Mark the incorrect statement regarding compound epithelium:

1. Made up of more than one layer of cells.

2. Vital role in secretion and absorption.

3. Provide protection against chemical and mechanical stress.

4. It covers the moist surface of the buccal cavity.

The excess of nutrients which are not used immediately are converted into fats and stored in 

1. Areolar tissue

2. Adipose tissue

3. Dense regular connective tissue

4. Dense irregular connective tissue

Cartilage is present

A. In the tip of nose and middle ear joints

B. Between adjacent bones of vertebral column

C. Between adjacent bones of limbs and hands in adults

1. A, B and C

2. A and B

3. B and C

4. A and C

Which of the following structures or substances is
incorrectly paired with a tissue ?
1. Haversian system—bone
2. platelets—blood
3. fibroblasts—skeletal muscle
4. chondroitin sulfate—cartilage

Which of the following is a true statement about
cardiac muscle cells?

1. They lack an orderly arrangement of actin and
myosin filaments

2. They have less extensive sacroplasmic reticulum
and thus contract more slowly than smooth
muscle cells

3. They are connected by intercalated discs,
through which action potentials spread to all cells
in the heart

4. They have a resting potential more positive than
an action potential threshold

Cell junctions like tight, adhering, and gap junctions are mainly present between the neighbouring cells of:

1. Neural tissue

2. Connective tissue

3. Muscular tissue

4. Epithelial tissue

Which of the following characteristics is not correct for squamous epithelium?

1. Made up of a single thin layer of flattened cells.
2. Cells with irregular boundaries.
3. Free surface contains microvilli.
4. Involved in a function like forming diffusion boundary.

Areolar connective tissue contains
(i) Semi-fluid ground substance containing modified
polysaccharide.
(ii) Fibroblast cells.
(iii) Mast cells.
(iv) Macrophages.

1. (i), (ii), (iii), (iv) 

2. (ii), (iii), (iv) only

3. (i), (ii) only 

4. (i) only

Blood is different from other connective tissue
because
(i) It is mesodermal in origin.
(ii) Blood cells do not form the composition of blood
plasma or matrix.
(iii) It contains different kind of cells performing
different function.
(iv) It lack fibres.

1. (i), (ii), (iii), (iv) 

2. (ii), (iv) only

3. (iv) only 

4. (ii) only

Assertion (A): Hibernation during winter and aestivation during summer is seen in frogs.

Reason (R): Frogs are poikilotherms.

(1) Both A and R are true and R is the correct explanation for A.

(2) Both A and R are true both R is not the correct explanation for A.

(3) A is true and R is false.

(4) A is false and R is true.