GS Biology Questions and Answers

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Q231
Epithelial tissue with thin flat cells appearing like packed tiles occur on
  • A Inner lining of stomach
  • B Inner lining of fallopian tube
  • C Inner lining of cheek
  • D Outer surface of ovary
Answer: Option C
Explanation: Inner cheek lining has flat epithelial cells to withstand abrasion.
Q232
The actively dividing layer of columnar cells in the epidermis of man is called
  • A Stratum granulosum
  • B Stratum lucidum
  • C Stratum malpighi
  • D Stratum corneum
Answer: Option C
Explanation: Stratum malpighi contains dividing cells responsible for epidermal renewal.
Q233
Horns of most mammals are composed of
  • A Bones
  • B Cartilage
  • C Keratin
  • D Chitin
Answer: Option C
Explanation: Horn sheaths are primarily made of keratin protein.
Q234
Mammary glands are modified
  • A Sebaceous gland
  • B Sweat gland
  • C Oil gland
  • D Lymph gland
Answer: Option B
Explanation: Mammary glands evolved as modified sweat glands producing milk.
Q235
Which of the following tissue has matrix, which is the source of its structural and functional performances?
  • A Connective tissue
  • B Muscular tissue
  • C Nervous tissue
  • D Epithelial tissue
Answer: Option A
Explanation: Connective tissue matrix provides support and strength to the body.
Q236
Ground substances and fibers in the connective tissue are secretory products of
  • A Mast cells
  • B Reticular cells
  • C Plasma cells
  • D Fibroblasts
Answer: Option D
Explanation: Fibroblasts secrete collagen and other matrix components.
Q237
The camel’s hump is composed of a tissue that provides water when oxidized
  • A Skeletal
  • B Areolar
  • C Muscular
  • D Adipose
Answer: Option D
Explanation: Adipose tissue stores fat which metabolizes to water in camels.
Q238
The white fibrous tissue occurs in
  • A Ligaments
  • B Cartilage
  • C Tendons
  • D Bone
Answer: Option C
Explanation: Tendons connect muscle to bone and have dense collagen fibers.
Q239
Ligaments are made up of
  • A White fibers and some yellow elastic fibers
  • B White fibers only
  • C Yellow fibers only
  • D Yellow fibers and muscle fibers
Answer: Option A
Explanation: Ligaments contain white collagen and some elastic fibers for flexibility.
Q240
The major constituent of vertebrate bone is
  • A Calcium phosphate
  • B Potassium hydroxide
  • C Sodium chloride
  • D Calcium carbonate
Answer: Option A
Explanation: Calcium phosphate provides hardness and strength to bones.
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