List of practice Questions

Study the diagram given below and match the structure with its functions:

Given below is the picture of an eagle.

Copy the diagram given below.  
(a) Name the structure. 
(b) Label Gray matter and White matter.


 

Given below is the diagram of a turgid plant cell. 

A mixed ether (P), when heated with excess of hot concentrated hydrogen iodide produces two different alkyl iodides which when treated with aq. NaOH give compounds (Q) and (R) give yellow precipitate with NaOI. Identify the mixed ether (P):
What is its function?
Select and write the two biodegradable wastes from the given list: Styrofoam, Metallic cans, Decaying fruits, Plastic bottles, Newspapers
Seminiferous tubules
(a) Name the fluid present between the meninges in spinal cord.
Expand the abbreviations: (a) NADP
(b) ADP
(a) NADP
(a) Explain the term Synapse.
Name the neurotransmitter that allows the transmission of impulses across the synapse.
What is the role of the following? (a) Leydig cells
Differentiate between Mitosis in plant cell and animal cell based on Cytokinesis.
Sara placed a healthy potted plant in a dark room for 48 hours to perform an experiment on photosynthesis. She plucked one of the leaves and tested it for starch. The leaf did not turn blue-black on adding Iodine solution. (a) Name the structure.
(b) Label Gray matter and White matter.
Write the overall chemical equation for photosynthesis.
Mention any two secondary sexual characteristics in a 15-year-old boy.
Explain the term 'Population Density' with reference to human beings.
A 17-year-old girl was having irregular menstrual cycle. Her mother took her to their family physician. She was diagnosed with Adrenal Virilism. Study the picture given below and answer the following questions. (a) Hypersecretion of which hormone results in Adrenal Virilism in human females?
(b) Mention one symptom of this disorder.
RBCs do not have nuclei. Discuss its advantage.
Arrange the following food chains in a proper sequence. (a) Small fish, Algae, Mosquito larvae, Kingfisher
A 28-year-old pregnant lady goes to a gynecologist for a check-up. Her doctor explains that there is normal growth of the foetus and the placenta is functioning well.
How are the Cytons and Axons of neurons arranged in the following? (a) Cerebrum
(b) Spinal Cord
(a) Who proposed the theory of Natural Selection?
Name the organism which was used as an example to explain Industrial Melanism.