Q3.Which of the following is a primary sex organ of female?
Answer : Option CExplaination / Solution:
Ovary is the primary sex organ of female reproductive system in human beings. Egg is released from one of the ovary each month. It also release hormone.
Q4.The number of substrate molecules changed per minute by a molecule of enzyme is called
Answer : Option CExplaination / Solution:
The number of substrate molecules changed per minute by a molecule of enzyme is called turn over number. Higher the turn over number more effective is the enzyme.
Q7.Which of the following blood components play a major role in blood coagulation ?
Answer : Option AExplaination / Solution:
Platelets also called thrombocytes are cell fragments produced from megakaryocytes. Platelets can release a variety of substances most of which are involved in the coagulation or clotting of blood.
Q8.The innate tendency of offspring to resemble their parents is called
Answer : Option DExplaination / Solution:
The innate tendency of offspring to resemble their parents is called heredity. The offspring resembles to parent due to same genetic combination inherited from parents.
Q10.Organism which depend on dead and decaying organic matter is
Answer : Option AExplaination / Solution:
A saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals.
This means that saprophytes are heterotrophs. They are consumers in the food chain.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0