Answer : Option CExplaination / Solution:
Basphils are responsible for inflammatory reactions during immune response, as well as in the formation of acute and chronic allergic diseases. They can perform phagocytosis (cell eating), produce histamine and serotonins that induce inflammation, and heparin that prevents blood clotting.
Answer : Option DExplaination / Solution:
Red blood cells (RBC) live for 120 days and white blood cells (WBC) live for 90 days. Afterwards they are degraded in spleen.
Q3.Nissl granules in a nerve cell are now identified as
Answer : Option DExplaination / Solution:
The nissl granules in nerve cell are now identified as ribosomes after discovery of electron microscope that provides highly magnified image for detailed study.
Q4.Which one of the following is correct pairing of a body part and muscle fibre that moves it?
Answer : Option CExplaination / Solution:
The iris contains involuntary smooth muscles. It encircles the pupil of the iris and helps to dilate the pupil when there is insufficient light for the normal function of the eye.
Q5.Which of the following leucocytes transforms into macrophages?
Answer : Option AExplaination / Solution:
Monocytes are white blood cells or leucocytes that transform into macrophages to engulf the pathogen entering the body.
Answer : Option CExplaination / Solution:
The innermost layer of intestinal wall is called mucosa. Mucosa contain microvilli to increase the surface area for absorption of digested food to transport into different part of the body.
Answer : Option AExplaination / Solution:
Pancreas is called as heterocrine gland because it acts as both endocrine and exocrine gland to secrete hormone as well as digestive enzymes. Testis and Ovary are also heterocrine glands.
Answer : Option CExplaination / Solution:
Blood plasma is pale yellow in colour due to presence of bilirubin pigment in it. Blood appear red due to presence of hemoglobin in RBC.
Answer : Option CExplaination / Solution:
The muscle forming cells are called myoblasts cells. Myoblast is a type of embryonic progenitor cell that differentiates to give rise to muscle cells.
Answer : Option CExplaination / Solution:
Stratum Malpighi is the basal layer of skin epidermis having basal layer and generative layer that produces new cells by mitosis.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0