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Divisional Public School & College Faisalabad: Class: X

1) The document contains a biology exam paper for 10th grade students with multiple choice and subjective questions testing their knowledge of key biology concepts. 2) The multiple choice section has 12 questions testing topics like photosynthesis, bone structure, DNA, genetics and disease. 3) The subjective section has 3 long answer questions requiring descriptions of kidney structure, the autonomic nervous system, joint types, ecosystem components and achievements in genetic engineering. Students are required to answer 5 short questions from each of 3 sets.

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Mubashra Raza
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108 views2 pages

Divisional Public School & College Faisalabad: Class: X

1) The document contains a biology exam paper for 10th grade students with multiple choice and subjective questions testing their knowledge of key biology concepts. 2) The multiple choice section has 12 questions testing topics like photosynthesis, bone structure, DNA, genetics and disease. 3) The subjective section has 3 long answer questions requiring descriptions of kidney structure, the autonomic nervous system, joint types, ecosystem components and achievements in genetic engineering. Students are required to answer 5 short questions from each of 3 sets.

Uploaded by

Mubashra Raza
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Divisional Public School & College Faisalabad 26-04-21 ( )

Examination : Pre-Board, April, 2021 Paper : BIOLOGY (Objective)

Class: X
Time : 15 minutes (Paper Code 2227) Marks : 12

Name ………………………….……….........……. Roll No. ……………….....................Class / Sec. ……………


Note: You have four choices for each objective type question as A, B, C and D. The choice which you think is
correct; fill that circle in front of that question number. Use marker or pen to fill the circles. Cutting or filling
two or more circles will result in zero mark in that question.
Questions (A) (B) (C) (D)
Most of the gaseous exchange in the General
i Stomata Cuticle Lenticle
leaf occur through: surface

The waste material which is None of


ii Mucilage Latex Gums
secreted by rubber plant? these

Largest endocrine gland is Thyroid Adrenal


iii Parathyroid All of these
gland gland

Which disease is caused by Sickle cell


iv Anemia Goitre Tetnay
deficiency of iodine? anemia

v The mature bone cells are called Chondocyte Lacuna Osteocyte Matrix

Rhizopus reproduces asexually by Binary Spore


vi Budding Endospore
fission formation

vii Ovule develop into Pollen sac Endosperm Seed Fruit

Watson and crick proposed of DNA


viii 1943 1953 1963 1973
model in:

The alternate form of gene are None of


ix DNA Allele Nucleus
called: these

Which hormone is effective against


x Thymosin Insulin Glucegon All of these
brain and lung cance?

xi Ascaris is an example of Ectoparesite Endoparasite Protozoan All of these

xii What are pain killers? Antiseptics Antibiotics Sedatives Analgesics


Divisional Public School & College Faisalabad 26-04-21 ( )
Examination : Pre-Board, April, 2021 Paper : BIOLOGY (Subjective)

Class: X
Time : 1 hour 45 min. (Paper Code 2227) Marks : 48

Name ………………………….……….........……. Roll No. ………………....................Class / Sec. ……………

(PART-I)
Q.2. Give short answers. (any five) (5 × 2 = 10)
i. Define cellular respiration.
ii. Define bronchitis. Write its causes.
iii. Write major symptoms of Asthma.
iv. Define guttation.
v. How plants remove extra carbon dioxide?
vi. Define nerve. Write its two types.
vii. Write two main functions of spinal cord.
viii. Define reflex action.
Q.3. Give short answers. (any five) (5 × 2 = 10)
i. Differentiate endoskeleton and exoskeleton.
ii. Write role of tendon.
iii. Define parthenogenesis.
iv. Define pollination. Name its two types.
v. Differentiate dominant and vecessive allele.
vi. Differentiate homozygous and heterozygous genotype.
vii. Define law of independent assortment.
viii. Define alternation of generation.
Q.4. Give short answers. (any five) (5 × 2 = 10)
i. Differentiate biotic and abiotic component.
ii. Define food chain.
iii. Define commensalism. Give one example.
iv. What do you know about lactic acid fermentation?
v. What do you know about urokinase?
vi. Differentiate pharmaceutical and addictive drugs.
vii. What is antibiotics? Give two examples.
viii. Differentiate bacteriocidal and bacteriostatic antibiotics.
(PART-II)
Note: Attempt any 2 questions. (9 × 2 = 18)
Q.5. (a) Write structure of kidney in detail. (5)
(b) Write a note on autonomic nervous system. (4)
Q.6. (a) Define joint. Write its types. (5)
(b) Write a note on budding. (4)
Q.7. (a) Write components of ecosystem. (5)
(b) Write four achievements of genetic engineering. (4)

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