Zoology - Online Test
Q1. The endometrium in female is the lining of
Answer : Option C
Explaination / Solution:
The innermost lining of uterus is called endometrium. It is spongy layer that breakdown during menstrual cycle along with mucus through vagina.
Q2. Polysaccharide does not metabolised in human body and used for kidney function is
Answer : Option B
Explaination / Solution:
Inulin is a starchy substance found in a wide variety of fruits, vegetables and other herbs. This polysaccharide is not metabolized in human body and used for kidney function.
Q3. Correct order for increasing number of corpuscles in our blood is :
Answer : Option C
Explaination / Solution:
WBCs are relatively lesser in number which averages 6000-8000 mm–3 of blood. A healthy adult man has, on an average, 5 millions to 5.5 millions of RBCs mm–3 of blood.. Blood normally contains 1,500,00-3,500,00 platelets mm–3.
Q4. Yeast is used in the production of
Answer : Option C
Explaination / Solution:
Yeast is used in the production of bread and beer. Beer production involves production of ethyl alcohol. Bread is produced by fermentation process.
Q5. An amendment in Air (Prevention and control of Pollution) Act1981 included a new pollutant named :
Answer : Option C
Explaination / Solution:
The Air (Prevention and Control of Pollution) Act, 1981 an Act of the Parliament of India to control and prevent air pollution in india. It was amended in 1987.
There are some definations of the act.
Definitions. – In this Act, unless the context otherwise requires,
- “air pollutant” means any solid, liquid or gaseous substance (including noise)] present in the atmosphere in such concentration as may be or tend to be injurious to human beings or other living creatures or plants or property or environment;
- “air pollution” means the presence in the atmosphere of any air pollutant;
- “approved appliance” means any equipment or gadget used for the burning of any combustible material or for generating or consuming any fume, gas or particulate matter and approved by the State Board for the purposes of this Act;
Q6. How many chromosomes are present in each cell of onion root tip?
Answer : Option A
Explaination / Solution:
Onion root tip cells have 16 chromosomes in each cell, same as the number of chromosomes in somatic cells.
Q7. Phage is a
Answer : Option A
Explaination / Solution:
Phage is a virus that infects bacteria. Such viruses transfer their genetic materials into host bacteria and using the bacterial machinery increase in number and multiply rapidly to kill host cells.
Q8. The physiological unit of a kidney is :
Answer : Option C
Explaination / Solution:
Nephrons are the physical unit or functional unit of kidney. Millions of nephrons are present in each kidney but physiological unit of kidney is urinigerous tubule.
Q9. Who performed the famous experiment to prove origin of life?
Answer : Option A
Explaination / Solution:
The famous experiment to prove the origin of life from inorganic substance was performed by Urey and Miller in 1953 by creating similar condition in laboratory as earth would be at the time of origin of life.
Q10. The scientific name of organisms should be written as
Answer : Option C
Explaination / Solution:
Mangiferaindica. Here, Mangifera is a generic name while indica is a specific name.hence, the correct option is Genus species.
