Life in Plastic Era
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Satya Prakash Public School
Session 2010-2011
Holiday Homework
CLASS – X
SUBJECT : SCIENCE
ASSIGNMENT – CHAPTER 1 – LIFE PROCESSES
Q1 From the given list identify the food reserves of plants and animals
Glucose, Sucrose, Glycogen , Starch , Proteins , Fats
Q2 Study the following diagram :
[pic]
Name the labeled part A & B and state their function
Q3 Where do plants get each raw material required for photosynthesis ?
Q4 Explain the process of photosynthesis . List four factors which influence this process and describe how each of them affects the rate of photosynthesis .
Q5 Define Nutrition . List two differences between saprophytic and Holozoic nutrition.
Q 6 Draw the diagram for cross section of a leaf and label the following – chloroplast, guard cell, lower epidermis, Upper epidermis.
Q7 What happens to a plant if its leaves are coated with Vaseline?
Q8 Why is it necessary to destarch a plant before performing an experiment to show photosynthesis ?
Q9 Represent photosynthesis by means of a chemical equation . Also describe the three main events which help in carrying out photosynthesis .
Q10 You are given a plant with variegated leaves. Which experiment will you perform to prove one of the requirements in photosynthesis . describe the experiment?
Q11 Draw the diagram of human alimentary canal and label the following :
a) the tube through which food passes into the stomach
b) A structure which stores bile juice
c) A structure which produces insulin hormone as well as digestive enzymes
d) A vestigial organ
e) The largest gland of the body
f) Part where complete digestion takes place
g) Part where water is absorbed
PHYSICS
Exercise for practice – Ch 1
1. What is the force that produces an acceleration of 1 m/s2 in a body of mass 1 kg ? [Ans. 1N]
2. Find the acceleration produced by a force of 5 N acting on a mass of 10 kg [0.5m/s2
3. A car of mass...
Session 2010-2011
Holiday Homework
CLASS – X
SUBJECT : SCIENCE
ASSIGNMENT – CHAPTER 1 – LIFE PROCESSES
Q1 From the given list identify the food reserves of plants and animals
Glucose, Sucrose, Glycogen , Starch , Proteins , Fats
Q2 Study the following diagram :
[pic]
Name the labeled part A & B and state their function
Q3 Where do plants get each raw material required for photosynthesis ?
Q4 Explain the process of photosynthesis . List four factors which influence this process and describe how each of them affects the rate of photosynthesis .
Q5 Define Nutrition . List two differences between saprophytic and Holozoic nutrition.
Q 6 Draw the diagram for cross section of a leaf and label the following – chloroplast, guard cell, lower epidermis, Upper epidermis.
Q7 What happens to a plant if its leaves are coated with Vaseline?
Q8 Why is it necessary to destarch a plant before performing an experiment to show photosynthesis ?
Q9 Represent photosynthesis by means of a chemical equation . Also describe the three main events which help in carrying out photosynthesis .
Q10 You are given a plant with variegated leaves. Which experiment will you perform to prove one of the requirements in photosynthesis . describe the experiment?
Q11 Draw the diagram of human alimentary canal and label the following :
a) the tube through which food passes into the stomach
b) A structure which stores bile juice
c) A structure which produces insulin hormone as well as digestive enzymes
d) A vestigial organ
e) The largest gland of the body
f) Part where complete digestion takes place
g) Part where water is absorbed
PHYSICS
Exercise for practice – Ch 1
1. What is the force that produces an acceleration of 1 m/s2 in a body of mass 1 kg ? [Ans. 1N]
2. Find the acceleration produced by a force of 5 N acting on a mass of 10 kg [0.5m/s2
3. A car of mass...