CBSE Class 11 Biology Structural Organisation in Animals Assignments

Important Questions for NCERT Class 11 Biology Structural Organisation in Animals

Ques. Characteristic of simple epithelium is that they
(a) are arranged indiscriminately
(b) make a definite layer
(c) continue to divide and help in organ function
(d) none of the above. 

Answer: B

Ques. Ligament is a/an
(a) inelastic white fibrous tissue
(b) modified white fibrous tissue
(c) modified yellow elastic fibrous tissue
(d) none of the above. 

Answer: C

Ques. Tendon is made up of
(a) yellow fibrous connective tissue
(b) modified white fibrous tissue
(c) areolar tissue
(d) adipose tissue. 

Answer: B

Ques. In mammals, histamine is secreted by
(a) lymphocytes    (b) mast cells
(c) fibroblasts        (d) histiocytes. 

Answer: B

Ques. Protein present in cartilage is
(a) cartilagin     (b) ossein
(c) chondrin      (d) none of these. 

Answer: C

Ques. Basement membrane is made up of
(a) no cell product of epithelial cell
(b) epidermal cell only (c) endodermal cell
(d) both (b) and (c). 

Answer: A

Ques. Stratum germinativum is an example of which kind of epithelium?
(a) Columnar    (b) Squamous
(c) Cuboidal      (d) Ciliated 

Answer: A

Ques. An epithelial tissue which has thin flat cells, arranged edge to edge so as to appear like closely packed tiles, is found to be present at
(a) outer surface of ovary
(b) inner lining of Fallopian tube
(c) inner lining of stomach
(d) inner lining of cheeks. 

Answer: D

Ques. Hair present in the skin are
(a) epidermal in origin and made of dead cells
(b) epidermal in origin and made of living cells
(c) dermal in origin and made of living cells
(d) dermal in origin and made of dead cells. 

Answer: A

Ques. The layer of actively dividing cells of skin is termed as
(a) stratum compactum (b) stratum corneum
(c) stratum malpighii/stratum germinativum
(d) stratum lucidum. 

Answer: C

Ques. Formation of cartilage bones involves
(a) deposition of bony matter by osteoblasts and resorption by chondroclasts
(b) deposition of bony matter by osteoclasts
(c) deposition of bony matter by osteoclasts only
(d) deposition of bony matter by osteoblasts only.

Answer: A

Ques. Characteristics of smooth muscle fibres are
(a) spindle-shaped, unbranched, nonstriated, uninucleate and involuntary
(b) spindle-shaped, unbranched, unstriped, multinucleate and involuntary
(c) cylindrical, unbranched, unstriped, multinucleate and involuntary
(d) cylindrical, unbranched, striated, multinucleate and voluntary. 

Answer: A

Ques. Haversian canals occur in
(a) humerus     (b) pubis
(c) scapula       (d) clavicle. 

Answer: A

Ques. Histamine secreting cells are found in
(a) connective tissues     (b) lungs
(c) muscular tissue         (d) nervous tissue. 

Answer: A

Ques. Mineral found in red pigment of vertebrate blood is
(a) magnesium     (b) iron
(c) calcium           (d) copper.

Answer: B