DPP - 28092021021BHPAT : Daily Practice Problems - BIOLOGY - 28/09/2021

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Q1. What is the nature of the membranes covering the brain? What is the name of the fluid that fills the space between these membranes? What is its role?
Q2. Describe the three regions of the brain.
Q3. Differentiate between the following pairs of terms:
(i) Sensory nerve and motor nerve
(ii) Cerebrum and cerebellum.
(iii) Sympathetic and parasympathetic nervous system
Q4. Define the following terms:
(i) Receptor
(ii) Synapse
(iii) Hormone
(iv) Neuron
(v) Impulse
(vi) Stimulus
(vii) Effector
Q5. Imagine that you did not score good marks in your science exam. Do you:
(a) tear the mark sheet and not let your parents know about it?
(b) decide that you are not a good student and cannot study science any further?
(c) discuss your mistakes with the teacher and ask for help from the teacher or another student who has done well and is willing to help you? Please choose one of the three options above and provide two reasons for your choice
Q6. What is a balanced diet? Name three items of a diet that provide three different nutrients?
Q7. What are the main steps of photosynthesis? Is sunlight essential for photosynthesis and why?
Q8. A patient complains of lack of appetite, exhaustion and is losing weight. Diagnosethe deficiency. What kind of diet would you suggest for the patient?
Q9. Deficiency of which vitamin causes night blindness. What would you suggest to prevent this deficiency?
Q10. Where does the digestion of starch, proteins and fats take place and what is the role played in digestion by liver and pancreas?
Q11. Which component in your diet will not be digested if the enzyme lipase is not secreted?
Q12. Explain how oxygen leaves the blood from the tissue capillaries and carbon dioxide enters the blood in the tissue capillaries.
Q13. Explain the usefulness of large surface area provided by alveoli for respiration in human beings.
Q14. Why do arteries have a thick or elastic wall?
Q15. What are the four types of blood groups present in humans? Prepare a table with two columns to show the different human blood groups and names of compatible blood groups in the other column.