Q1.Where is ciliated epithelium found in human body?
Answer : Option DExplaination / Solution:
The ciliated epithelium is mainly present in the inner surface of hollow organs like bronchioles and fallopian tubes.
Q2.The five kingdom classification was proposed by
Answer : Option AExplaination / Solution:
Five kingdom classification was proposed by R.H. Whittaker in 1969. The kingdoms identified by him were Monera, Protista,Fungi, Plantae and Animalia.
Q3.Which of the following is not a mixed/composite gland?
Answer : Option AExplaination / Solution:
A gland that contain both exocrine and endocrine portion is called mixed or composite gland. These glands secretes both hormone and enzymes. Pineal gland is an example of endocrine gland.
Answer : Option BExplaination / Solution:
Biotic components include all living organisms present in an ecosystem. Competitors and predators are biotic components of habitat.
Answer : Option AExplaination / Solution:
Each tooth is embedded in a socket of jaw bone called thecodont. Human being forms two sets of teeth during their life temporary milk or deciduous teeth replaced by a set of permanent or adult teeth called diphyodont. An adult human has 32 permanent teeth which are of four different types called heterodont.
Answer : Option AExplaination / Solution:
A number of bacteria, fungi, virus etc. cause disease in human beings. These disease causing microbes are called pathogens.
Answer : Option BExplaination / Solution:
Nissl’s grains are mainly present in cyton and dendrite. These granules are rough endoplasmic reticulum with rosettes of free ribosome, the site for protein synthesis. It is absent in axon.
Q9.Genetic information is carried out by long chain molecule made up of
Answer : Option CExplaination / Solution:
Genetic information is carried out by DNA and RNA. Both DNA and RNA are called genetic material, made up of long chain of nucleotide having- nitrogenous base, sugar and phosphate ions.
Answer : Option AExplaination / Solution:
In ecosystem, flow of energy takes place in only one direction. The flow of energy takes place from producers to final consumers. Energy present in one trophic levels nevers return back to producer.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0