List of top Questions asked in ICSE Class X board

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

Mohit, a 30-year-old man was a software professional leading a sedentary life. He showed signs of high blood sugar during a routine health check-up despite having a normal body weight. 

 (a) The hormonal disorder he is suffering from.

Given below is the diagram of a human sperm. Read the information below the diagram and fill in the blanks:

Karan was standing on a high stool and cleaning the ceiling fan. 
He suddenly loses balance and sustains a head injury. An examination reveals that his pupils have lost the capacity to constrict in bright light. Which structure has been damaged?

Bharat woke up late in the morning and missed the school bus. 
This situation stimulated the nerves of the sympathetic system which resulted in: 

(a) Name the fluid present between the meninges in spinal cord.
Fluid present between the meninges in spinal cord.What is its function?
Select and write the two biodegradable wastes from the given list: Styrofoam, Metallic cans, Decaying fruits, Plastic bottles, Newspapers
What is the role of the following? (a) Leydig cells
Seminiferous tubules
Name the neurotransmitter that allows the transmission of impulses across the synapse.
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.
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.
Differentiate between Mitosis in plant cell and animal cell based on Cytokinesis.
Expand the abbreviations: (a) NADP
(b) ADP
(a) NADP
(a) Explain the term Synapse.
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.
Arrange the following food chains in a proper sequence. (a) Small fish, Algae, Mosquito larvae, Kingfisher
RBCs do not have nuclei. Discuss its advantage.
Mention any two secondary sexual characteristics in a 15-year-old boy.
Explain the term 'Population Density' with reference to human beings.
What is the scientific name of modern man?
(a) Who proposed the theory of Natural Selection?
Name the organism which was used as an example to explain Industrial Melanism.