1. In male cockroach, sperms are stored in which part of the reproductive system?
1) Testes
2) Vas deferens
3) Seminal vesicle
4) Mushroom gland
2. Smooth muscles are:
1) Involuntary, cylindrical, striated
2) Voluntary, spindle-shaped, uninucleate
3) Involuntary, fusiform, nonstriated
4) Voluntary, multinucleate, cylindrical
3. Which type of tissue correctly matches with its location? Tissue Location
1) Smooth muscle Wall of intestine
2) Areolar tissue Tendons
3) Transitional Tip nose epithelium
4) Cuboidal Lining of epithelium stomach
4. Erythropoiesis starts in:
1) Spleen
2) Red bone marrow
3) Kidney
4) Liver
5. Which one of the following is correct?
1) Lymph = Plasma+RBC+WBC
2) Blood = Plasma + RBC + WBC + Platelets
3) Plasma = Blood − Lymphocytes
4) Serum = Blood + Fibrinogen
6. The terga, sterna and pleura of cockroach body are joined by:
1) Arthrodial membrane
2) Cartilage
3) Cementing glue
4) Muscular tissue
7. The function of the gap junction is to:
1) stop substance from leaking across a tissue
2) performing cementing to keep neighbouring cells together
3) Facilitate communication between adjoining cells by connecting the cytoplasm for rapid
transfer of ions, small molecules and some large molecules
4) separate two cells from each, other
8. The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in
the form of:
1) Calcium carbonate
2) Ammonia
3) Potassium urate
4) Urea
9. Choose the correctly matched pair:
1) Inner lining of salivary ducts – Ciliated epithelium
2) Moist surface of buccal cavity – Glandular epithelium
3) Tubular parts of nephrons – Cuboidal epithelium
4) Inner surface of bronchioles – Squamous epithelium
10. Choose the wrong statement with reference to smooth muscles
1) myofibrils show alternate dark and light bands
2) they are spindle shaped uninucleate cells
3) their contractions are under the control of autonomous nervous system
4) they exhibit prolonged contractions
11. Whorton’s jelly present in umbilical cord is an example for:
1) adipose tissue
2) mucus connective tissue
3) areolar tissue
4) elastic connective tissue
12. Assertion (A): In cardiac muscle, impulses are transmitted rapidly.
Reason (R): Gap junctions allow quick passage of ions from one cell to the other.
1) Both A and R are true and R explains A
2) Both A and R are true but R does not explains A
3) A is true but R is false
4) A is false but R is true
13. The glial cells which help in providing blood-brain barrier are:
1) Astrocytes
2) Microglia
3) Ependymal cells
4) Oligodendrocytes
Ans: ❖ Cephalization is the process where the concentration of nerve and sensory cells at the anterior
end of animals (in the head).
❖ It appears in bilateral symmetrical animals.
❖ As the result of cephalization, these animals can sense the new environment into which they enter
and respond more efficiently and quickly.
2. Mention the animals that exhibited a “tube-within-a-tube” organization for the first time?
Name their body cavity.
Ans: Nematodes, Rotifers of the phylum Aschelminthes are the first animals to exhibit a “tube-within
-a-tube” organization. Body cavity is pseudocoelom in these animals.
3. What are retroperitoneal organs?
Ans: The organs like kidneys of vertebrates are covered by the parietal peritoneum only on their ventral side. This peritoneum is considered as retroperitoneum and the organs lined by it are known
as “retroperitoneal organs”.
4. Why is the true coelom considered as a secondary body cavity?
Ans: In eucoelomates, the blastocoel or primary body cavity is replaced by true coelom derived from
the mesoderm. So true coelom is considered as secondary body cavity.
5. Radial symmetry is an advantage to the sessile or slow moving organisms. Justify this statement.
Ans: Animals showing radial symmetry live in water and they can respond equally to stimuli that arrive from all directions. Thus, radial symmetry is an advantage to sessile or slow moving animals.
6. Distinguish between exocrine and endocrine glands with examples.
Ans. Exocrine glands are provided with ducts. Secrete mucus, saliva, earwax, oil, milk, digestive
enzymes and other cell products. Endocrine glands are ductless and their products are hormones
which are not sent out via ducts, but are carried to the target organs by blood. Ex: pituitary gland.
7. Distinguish between holocrine and apocrine glands.
Ans: Apocrine glands in which the apical part of the gland cell in pinched off along with the secretory
product.
Ex: Mammary glands. Holocrine glands, in which the entire cell disintegrates to discharge the contents.
Ex: Sebaceous glands.
8. Distinguish between a tendon and a ligament.
Ans: Tendons are the collagen fibrous tissue of dense regular connective tissue which attach the skeletal muscles to bones. Ligaments are also the collagen fibers tissue of dense regular connective
tissue which attach bones.
9. What is the strongest cartilage? In which regions of the human body, do you find it?
Ans: The fibrous cartilage is the strongest of all types of cartilages. It occurs in the intervertebral discs and pubic symphysis of the pelvis
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