Tagore Public School
Biology Assignment
Class – X (LIFE PROCESSES)
Q1 What will happen if the gallbladder of a person is removed?
OR - Role of liver in human digestive system.
OR - Role of bite juice.
Q2 Why do a herbivores have a longer intestine and a carnivores have a shorter intestine?
OR - A cow has a longs intestine in compare to a tiger why?
Q3 How is the food pushed forward in the alimentary canal?
OR - What is the peristaltic movement?
Q4 How is the lining of stomach protected against the action of HC1?
Q5 How is the enzyme pepsin activated in alimentary canal?
Q6 Name the common phase of respiration in both aerobic as well as anaerobic respiration where this phase
occure in cell?
Q7 During the day, there is norelease of CO2 from the plants. Why?
Q8 How is the oxygen demand is fulfilled in large sized animals where diffusion pressure along cannot take
care of oxygen delivery to all parts of the body?
Q9 Name the main driving force in the movement of water in the xylem during day.
Q10 In which form food is stored in plant and animals?
Q11 Why do plants have low energy needs and slow transport system?
Q12 What happens to glucose which enters the nephron along with the filtrate?
OR What happens to useful substances which enters the nephron along with the waste?
Q13 What is the other name for extra cellular fluid?
OR What is the other name of lymph and why it is called so?
Q14 What happens to the CO2 which collects in human tissue?
Q15 Name the iron containing respiratory pigment which help in transportation of oxygen.
Q16 Name the blood vessel the largest artery of the body
- through which exchange of material takes place. - Which have value.
Q17 Write one feature which is common to each of the following pairs of terms/organs.
(a) Glycogen and starch (b) Chlorophyll and haemoglobin (c) Gills and lungs (d) Arteries and Veins
Q18 How is the action of salivary amylase stop in our stomach?
Q19 Name oneorganism which can live without oxygen.
Q20 What are bio-catalysts?
Q21 Name the muscle through which the exit of food from the stomach is regulated.
OR What is the role of sphincter muscle in human alimentary canal?
Q22 What is the role of Ville in large intestine?
Q23 Name the fluid medium in which blood cells are suspended..
Q24 Differentiate between artificial kidney and natural kidney.
Q25 Virus is consider as living and non living. Why?
OR Virus is the borderline of living and non-living.
Q26 What is the source of energy in living organisms?
Q27 The leaves of a plant first prepare food A by photosynthesis then food A gets converted into food B.
What are A and IV?
Q28 Which gland is endrocrine as well as exocrine in man.
OR The gland which perform duel function.
Q29 Name the excretory unit of kidney.
OR What is the structural and functional unit of kidney.
Q30 "All plants give out oxygen during day and carbon dioxide during night". Do you agree with
this statement? Give reason.
Q31 How do the guard cells regulate opening and closing of stomatal pores?
Q32 Two green plants are kept separately in oxygen free containers, one in the dark and the other
in continue light. Which one will live longer? Give reason.
Q33 Why do fishes die when taken out of water?
Q34 Is 'nutrition' a necessity for an organism? Discuss.
Q35 What are the adaptations of leaf for photosynthesis?
Q36 Why is small intestine in herbivores longer than in carnivores?
Q37 What will happen if mucus is not secreted by the gastric glands?
Q38 What is the advantage of having four chambered heart?
Q39 Why do veins have thin walls as compared to arteries?
Q40 Plants have low energy needs as compared to animals. Explain.
Q41 Why and how does water enter continuously into the root xylem?
Q42 What are the end product of anaerobic respiration in yeast?
Q43 Write anyone important function of transpiration.
Q44 Where are the two kidneys located in human beings?
Q45 What is the function of lymphocyte cells?
Q46 What is transpiration?
Q47 Name the largest artery in our body.
Q48 What is the other term for" extracellular fluid"?
Q49 Name the excretory unit of a kidney.
Q50 When we blow exhaled air into the solution of lime water, it turns milky. What actually
happens in the solution?
Q51 Draw sectional view of the human heart and label on it: Aorta, Right ventricle and
Pulmonary veins.
Q52 What makes red blood corpuscles red?
Q53 What will happen to a plant if its xylem is removed?
Q54 Name the green dot like structure in some cells observed by a student when a leaf peel was
viewed under a microscope. What is this green colour due to?
Q55 What is emulsification? Name the organ where fat is emulsified in the alimentary canal of
human beings.
Q56 name the cavity in which the lungs of man are enclosed. What is its function?
Q57 What are the two vital functions of the human kidney?
Q58 Write two points of difference between respiration in plants and respiration in animals.
Q59 What is lymph? Write its important functions.
Q60 Write one function each of the following components of the transport system in human
beings?
(a) Blood vessels (b) Blood Platelets (c) Lymph (d) Heart
Q61 List two difference between 'Holozoic nutrition' and 'Saprophytic nutrition'. Give two
examples of each of these two types of nutrition.
Q62 Using only flow chart, write the path of O2from trachea to respiring tissue cell.
Q63 What are (i) Stomata and (ii) Lenticels?
Q64 'Respiration is a vital function of the body'. Justify.
Q65 State differences between artery, vein and capillary.
Q66 Which is the major nitrogenous waste product in a human being? How is it removed from
the body?
Q67 (a) Name a vein which carries oxygenated blood.
(b) Name an artery which carries deoxygenated blood.
(c) Why is left ventricle of heart is thicker than the right ventricle.
Q68 Name the factor which affect photosynthesis.
Q69 (a) Draw a diagram depicting Human Alimentary Canal and label on it: Gall Bladder, Liver
and Pancreas.
(b) Sate the roles of Liver and Pancreas.
(c) Name the organ which performed the following functions in human-
(i) Absorption of digested food
(ii) Absorption of water
Q70 Differentiate between an autotroph and a heterotroph.
Q71 How does aerobic respiration differ from anaerobic respiration?
Q72 How do carbohydrates, proteins and fats get digested in human beings?
