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Lahore Board (Inter Part - 2)2009
Subject: Biology (Obj. Type) Paper-I
Total Marks: 17 Group-1 Time Allowed: 20 Min .
Note: Use this paper to write the answers to the objective
questions. No mark will he awarded for cutting, over-writing
or using.a pencil. This paper must be tagged with the answer-
book. 17
Some- possible answers to each statement are given below.
Tick ,(/)' mark the correct answer:
1-The end product of haemoglobin break down and metabolites
of various harmones is:
(Uric acid.. Bilirubin. Creatinine: All of these)
2- The collenchma cells have protoplast and usually lack:
(Secondary wall, Primary wall, Cell membrane. Vacuole)
3- Spontaneous movements due to internal causes are:
(Paratonic. Tactic. Taxis, Autonomic)
4- Abscisic acid promotes closing of stomata under conditions
of:
(Water stress. Light stress. Temperature stress. Wind stress)
5- The largest part of the brain is: (Cerebellum, Cerebrum.
Medulla. Thalamus)
6- During delivery in humans, the
average loss of blood is about: (150 cm’. 250 cm3, 350 cm',
450 cm')
7- Clear cytoplasm produces: (Gut. Neural tube. Muscle cells.
Iarval epidermis)
8- Successive amino acids bearing t RNA will bind
(A site..B site; E site, P site).
9- Human cells contain 45 different kinds of:
(DNA, m RNA. t RNA. r RNA)
10- The most critical phase of mitosis is:
(Prophase; Metaphasc, Anapnl ' Telophase)
11- A gene with multiple phenotyr effect is called:
(Multiple allele, Pleiotro' allele, Polygenic allele.
Bombay allele)
12- ABO blood group was discovered by:
(Bernstein. Corrr Morgan. I.andsteincr)
13- Cystic fibrous pigments lack a gene that codes for
transmembrane carrier of: (Calcium ions. Sodium ion.
Chloride ion. Potassium ion)
14- Archaebacterja can tolerate temperature up to:
(100°C, 130°C. 150°C. 120°C)
15- The symbiotic relationship in which both partners get
benefit is:
(Commensalism , Mutualism, Commensalism and
Mutualism, None of these)
16-The rate of primary production is about 70-1500 g/in‘ annually in: (Temperate grassland.
Desert, Tundra. Tropical grassland) 17- The largest consumers
of electrical energy are: (Homes. Offices, Agriculture. Industries)
Lahore Board (Inter Part - I) 2013
Subject: Biology ( Sub.type) Paper-I
Total Marks: 68 Group-II Time Allowed:2:40Hrs. SECTION-I
Note: All questions are attempted on the answer hook.
SECTION -1
Q1. Write any TWENTY-TWO (22) short answers of the following questions: 44 i)
i) What techniques are used to remove the kidney stones?
ii) Differentiate between ureter and urethra.
iii) Differentiate between ectotherm and endotherm.
iv) What is sciatica and its causes?
v) How digitigradc differ from unguligarde?
vi) What is difference between tendon and ligament?
vii) What.are galls and calluses?
viii) What are axons and dendrites?
ix) What is epilepsy?
x) What is ovoviviparous condition?
xi) What are test-tube babies?
xii) What is semi-conservative replication model of DNA?
xiii) What is sex influenced trail?
xiv) What is organizer and inducer substance?
xv) Describe briefly about sickle cell anaemia.
xvi) What is test cross? Why did Mendel devise this cross?
xvii) What are okazaki fragments?
xviii) Differentiate between necrosis and apoptosis.
xix) How does light influence the growth of plants?
xx) What is metastasis?
(xxi) What is the difference between inhibitory effect and
compensatory effect ?
xxii) How does prophase I of mciosis differ from the prophase
of mitosis?
(xxiii) What are restriction enzymes?
xxiv) What do you mean by endosymbiont hypothesis?
xxv) What are vestigial organs? Give two examples.
xxvi) Differentiate between hydros and xerasere.
xxvii) What is the difference een predator and prey?
xxviii) Define pollution.
xxix) What is algal bk
xxx) Differentiate aween alpine and boreal forests.
xxxi) What is a mycorrhiza? xxxii) Define transgenic organisms. xxxiii) What is a climate?
SECTION-II
Note: Attempt any THREE questions. 2. Discuss the nature of exceretory products- in animals to
variou habitats, specifically in association of water
availability. 8 .
3.(a) Discuss the important factors which ‘involve in changing
the resting membrane potential to active membrane
potential. 4
(b) What are the main functions of placenta during
pregnancy? 4
4- Write an essay on the process of mitosis. 8
5- Write note on multiple alleles. 8 6- Give an account of desert
ecosystem. 8
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