STRUCTURAL ORGANISATION IN ANIMALS
1. Match Column A with those
in columns B and C. (Score 3).
|
A |
B |
C |
|
Type of simple Epithelium |
Location |
Function |
|
Squamous |
......... (a) ......... |
Diffusion |
|
.......(b) ........ |
Ducts of glands and tubular parts of nephrons |
...... (c) ...... |
|
Columnar |
......... (d) ......... |
Secretion and Absorption |
|
....... (e) ........ |
Inner surface of bronchioles and fallopian tubes |
....... (f) ....... |
Answer:
(a) Walls of blood vessels and lung alveoli.
(b) Cuboidal (cubical)
epithelium.
(c) Secretion and
absorption.
(d) Lining of stomach and
intestine.
(e) Ciliated epithelium.
(f) Movement of particles.
2. Rewrite the given
sentences if there is any mistake in the underlined part. (Score 2)
- Cells of adipose tissue are called osteocytes.
- Tendons attach muscle to bone.
- Intercalated discs are seen in skeletal muscle.
- Skeletal muscles are striated.
Answer:
- Cells of adipose tissue are called adipocytes.
- Intercalated discs are seen in cardiac muscle.
3. a) Identify the tissues based on the features given below: (Score 2)
i) Intercalated disc.
ii) Involuntary in action
(b) Mention the function of intercalated
disc.
Answer:
(a) Cardiac muscle
(b)
It allows cells to
contract as a unit, i.e., when a cell
receives signal to contract, other cells also contract.
4. Identify the function of
the following structures of cockroaches. (Score 2)
(a) Compound eye
(b) Hepatic caecae
(c) Gizzard
(d) Malpighian tubules
Answer:
(a) Compound eye: Mosaic vision.
(b) Hepatic caecae: Secrete
digestive juice.
(c) Gizzard: Helps to grind
the food.
(d) Malpighian tubules:
Excretion
5. The mounting of mouthparts of a cockroach is given below. If there is any error, correct it. (Score 2)
Answer:
(a) Labrum
(b)
Maxilla
(c) Hypopharynx
(d) Labium
(e) Mandible
6. Identify the following
tissues: (Score 2)
a) Tissue that stores fat.
b) Tissue that connects bones together.
c) Tissue that connects bones to muscles.
d) Tissue that conducts impulses.
Answer:
(a) Adipose tissue
(b) Ligaments
(c) Tendon
(d) Neural tissue
7. Observe the diagram
showing the alimentary canal of cockroach. Name parts labeled A, B, C & D. (Score 2)
Answer:
(a)
Crop
(b) Hepatic caecae
(c) Malpighian tubules
(d) Colon
8. Identify figures A
and B. Write any one characteristic features of each A and B. (Score 3)
Answer:
A= Smooth muscle, B= Skeletal muscle.
Smooth muscle: Non-striated, involuntary
Skeletal muscle: Striated, voluntary.
9. Fill in the missing words A & B in the following chart: (Score 1)
Answer:
(A) Goblet cell
(B) Exocrine gland
10. Name any two secretions of exocrine glands. (Score 1)
Answer:
Liver: Bile juice
Salivary glands: Saliva
11. Select the odd one out in the following series. (Score 1)
a.
Areolar tissue, Blood, Neuron, Tendon
b.
Hypopharynx, Malpighian tubules, Maxillae, Labrum
Answer:
(a) Neuron
(b) Malpighian tubules
12. Observe the diagrams given below. (Score 2)
b. Write one function of each.
Answer:
(a) A= Simple squamous epithelium
B= Simple cuboidal epithelium.
(b) A= Diffusion. B= Secretion and
absorption.