I. Gap junctions cement adjacent cells together.
II. Areolar tissue contains fibroblasts, macrophages and
mast cells.
III. Tight junctions facilitate the cells to communicate with
each other.
IV. Adhering junctions help to stop substances from
leaking across tissues.
V. Cells of connective tissue except blood secrete fibres of
structural proteins called elastin.
(a) I, II and III only are wrong
(b) I, III and IV only are wrong
(c) III and V only are wrong
(d) I, II and V only are wrong
(e) II, IV and V only are wrong .HUDOD307 - Given below is the diagrammatic sketch of a certain type of
connective tissue. Identify the parts labelled A, B, C and D,
and select the right option about them.
A B
CD
A B C D
(a) Macrophage Fibroblast Collagen fibres Mast cells
(b) Mast cell Macrophage Fibroblast Collagen fibres
(c) Macrophage Collagen fibres Fibroblast Mast cell
(d) Mast cell Collagen fibres Fibroblast Macrophage
$,3070DLQV
- The cells lining the blood vessels belong to the category of
(a) smooth muscle tissue
(b) squamous epithelium
(c) columnar epithelium
(d) connective tissue. $,3070DLQV - Mast cells of connective tissue contain
(a) vasopressin and relaxin
(b) heparin and histamine
(c) heparin and calcitonin
(d) serotonin and melanin. %+8
Assertion & Reason
The following questions consist of two statements each : assertion
(A) and reason (R). To answer these questions, mark the correct
alternative as directed below :
(a) If both A and R are true and R is the correct explanation of A.
(b) If both A and R are true but R is not the correct explanation of A.
(c) If A is true but R is false. (d) If both A and R are false.
- Assertion : Urinary bladder can considerably expand to
accommodate urine.
Reason : Urinary bladder is lined by stretchable squamous
epithelium.
2. Assertion : Simple cuboidal epithelium of ovaries and
seminiferous tubules is known as germinal epithelium.
Reason : Germinal epithelium produces gametes.
3. Assertion : Bones possess longitudinal canals called
lacunae.
Reason : Lacunae carry blood vessels and nerves to the
bones.
4. Assertion : Epithelial tissues protect the underlying tissues.
Reason : Materials are exchanged at the surfaces across the
epithelial tissues.
5. Assertion : Cartilage cells receive their nutrition by
diffusion from the perichondrium.
Reason : The perichondrium contains blood vessels.
Short Answer Type Questions
- Fill in the blanks.
(i) The increase in number of acidophils during allergy is
called .
(ii) cartilage is present in the supra scapula of
pectoral girdle of frog.
(iii) Urothelium is another term for ___ epithelium. - Write a short note on haemopoiesis.
- What is lymph? Discuss its composition.
- Define the followings:
(a) Diapedesis
(b) Endoneurium
(c) Desmosomes
ANSWERKEY
New MCQs- (c) 2. (b) 3. (c) 4. (b) 5. (a)
- (b) 7. (d) 8. (b) 9. (b) 10. (c)
Exam Section- (d) 2. (c) 3. (d) 4. (b) 5. (b)
- (c) 7. (b) 8. (a) 9. (b) 10. (b)
Assertion & Reason- (c) 2. (a) 3. (d) 4. (b) 5. (a)
Short Answer Type Questions- (i) eosinophilia, (ii) Calcified, (iii) transitional
- The process of formation of blood is called haemopoiesis.
In mammals, this process takes place in yolk sac, liver, bone
marrow, lymph nodes, spleen and thymus. In adults, most