MODEL PAPER - 4
1
CONTINUOUS & COMPREHENSIVE EVALUATION
SUMMATIVE ASSESSMENT - III
Model Paper - 4
GENERAL SCIENCE - PAPER - II
(BIOLOGICAL SCIENCE)
X CLASS
Max Marks : 40]
[Time : 2 : 45 hrs
General Instructions :
1.
Answer all the questions in separate answer sheet only.
2.
This question paper comprises four sections, I, II, III and IV. There is internal choice in
Section - I only.
3.
All questions are compulsory.
4.
In the time duration of 2 : 45 Hrs, 15 Min. of time is to read and understand question
paper.
b
a
r
e
d
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SECTION - I
Instructions :
.
d
a
(4 × 4 = 16 M)
(i) There is internal choice in section - I
,
B
E
C
D
(ii) Each question carries 4 marks
(iii) Answer each question in 8 - 10 sentences each.
1.
(a) What is the process behind healing of a wound ? Explain with suitable diagrams.
(OR)
(b) There is a pair of bean - shaped organs P in the human body towards the back, just above the
waist. A waste product Q formed by the decomposition of unused proteins in liver in brought
into organ P through blood by an artery R.
(i)
What is the organ P ?
(ii) Name the artery R.
(iii) Name are tiny filters S known as ?
(iv) What is the waste substance Q ?
2.
(a) Explain the difference between the following
(i)
Aerobic respiration and Anaerobic respiration
(ii) Arteries and veins.
(OR)
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GENERAL SCIENCE - PAPER - II
2
(b) Give reasons
(i)
Folding of leaves by "Touch me not" (Mimosa pudic) plant. When they are touched.
(ii) If glucose level falls in blood we feel hungry.
(iii) Systolic pressure is more than diastolic pressure
(iv) Migration of farmers to the Urban (cities) areas.
3.
(a) What procedure do you follow to show that green plants release oxygen when they exposed
to light ?
(OR)
(b) Ramu brought goat's heart from butcher shop. Write the procedure he must follow to observe
its internal structure. Mention his observations.
4.
(a) Red the table and answer the questions.
.
d
a
S.No.
Enzyme
Secreted by
Digestive Juice
Acts on
1.
Ptyalin
(Salivary amylase)
Salivary glands
Saliva
Carbohydrates
2.
Pepsin
Stomach
Gastric juice
Proteins
3.
Bile
(No enzymes)
Liver
Bile juice
Fats
4.
Amylase
Pancreas
Pancreatic juice
Carbohydrates
5.
6
(i)
,
B
E
C
D
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Trypsine
Pancreas
Pancreatic juice
Proteins
Lipase
Intestinal wall
Pancreatic juice
Fats
Name the enzymes which acts on carbohydrates ?
(ii) Which juice contains no enzymes ?
(iii) What are the enzymes that act on proteins ?
(iv) Name the enzymes secreted by pancreas.
(OR)
4.
(b) Complete the given table by the information collected by you regarding respiratory diseases.
S.No.
Name of the disease
Symptoms
Precautions
Eg.:
Bronchitis
Cough and throat
irritation
Avoid pollution and allergic
substances
1
2
3
4
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MODEL PAPER - 4
3
SECTION - II
(6 × 2 = 12 M)
Instructions :
(i) Answer all the questions.
(ii) Each question carries 2 marks
(iii) Answer each question in 5 - 6 sentences each.
5.
Write two slogans to provide awareness on conservation of ground water among people.
6.
Observe the given part of digestive system. What is it ? What is its role in digestion ?
b
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.
d
a
7.
Draw a pyramid of numbering consider yourself as a top level consumer ?
8.
Why mendle has choosen garden pea as material for his experiment.
9.
Now a days, why doctors are not conducting ultra sound scanning test for determining the sex of
the baby ?
10.
What precautions will you take while conducting experimental to prove that heat is liberated
during respiration ?
,
B
E
C
D
SECTION - III
(7 × 1 = 7 M)
Instructions :
(i) Answer all the questions.
(ii) Each question carries 1 marks
(iii) Answer each question in 1 - 2 sentences each.
11.
Give any two examples for 'Evidences of Evolution'.
12.
Observe and genotype ratio
Y
y
Y
YY
Yy
Y
Yy
yy
(i)
Phenotype ratio _________
(ii)
Genotype ratio _________
13.
Suggest any two important habitual actions to your friend while eating food, keeping in view of
the lesson 'co-ordination in life'.
14.
"Fruits are nice gifts of vitamins". How could you appreciate it ?
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GENERAL SCIENCE - PAPER - II
4
15.
Lable the following diagram.
16.
What questions you will ask in an interview with a person using vehicle, on conservation of
petrol ?
17.
Draw a neat labelled diagram of "Synapse".
SECTION - IV
Instructions :
(i) Answer all the questions.
(ii) Each question carries
1
2
b
a
r
e
d
y
H
marks
(10 ×
.
d
a
1
2
= 5 M)
(iii) Each question has four choices. Choose the correct answer for each question and write the
relevant alphabet (A | B | C | D) against the question number in your answer booklet.
18.
The portion which id not change two blue, shows
[
]
[
]
[
]
(A) It does not receive CO2
19.
21.
(C) It does not receive light
(D) It does not contain chlorophyll
Beginning with Kidneys arrange the following in correct order.
(i)
20.
,
B
E
C
D
(B) It does not receive water
Urethra
(ii) Kidney
(iii) Urinary bladder
(iv) Ureter
(A) ii, iv, iii, i
(B) ii, i, iii, iv
(C) ii, iii, iv, i
(D) ii, i, iv, iii
Diabetes is related to this gland
(A) Thyroid
(B) Pancreas
(C) Adrenal
(D) Pituitary
When the finger of Ram is cut, the blood took much time to clot, Imagine the reasons for it.
[
]
(A) Deficiency of vitamine D
(B) Deficiency of vitamine K
(C) Ram body contain lot of blood
(D) Ram body contain less blood
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MODEL PAPER - 4
22.
5
This logo indicates
[
]
[
]
[
]
[
]
[
]
[
]
(A) Recycling
(B) Reuse
(C) Reduce
(D) Recover
23.
24.
25.
The concept of ecological pyramid was first introduced by
(A) Charles Elton
(B) Slobodkin
(C) Lindeman
(D) Steele
Reflex action are controlled by
(B) Spinal cord
(C) Autonomic nervous system
(D) Peripheral nervous system
Food chain always starts with .....
(A) Herbivore
(D) Consumers
Depletion in ground water levels is due to
(A) Less rainfall
(B) Deforestation
,
B
E
C
D
(C) No control on bore wells
27.
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(B) Carnivore
(C) Producers
26.
.
d
a
(A) Brain
(D) All
Heart is an important organ in circulation for proper functioning of heart every one.
(A) Taking nutritious diet
(B) Doing exercise
(C) Developing smoking habit
(D) A and B
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