Past Papers of Biology 10th Class Lahore Board 2018 Group I

Past Papers of  Biology 10th Class Lahore Board 2018
LAHORE BOARD 2018 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. The disease in which destruction the wall of alveoli is:
(A) Asthma
(B) Pneumonia
(C) Emphysema
(D) Bronchitis

2. Encyclopedia “Al-Tasrif’ is written by:
(A) Al-Farabi
(B) Abu-ul-Qasim
(C) Ali Ibn-e- Isa
(D) Al-Haitham

3. The smallest bone in human body is:
(A) Stapes
(B) Incus
(C) Milieus
(D) Vertebra

4. The length of spinal cord is:
(A) 20cm
(B) 40cm
(C) 60cm
(D) 70cm

5. Number of bones in appendicular skeleton is:
(A) 126
(B) 116
(C) 136
(D) 146

6. Female reproductive part of flower is:
(A) Gynoecium
(B) Androecium
(C) Sepals
(D) Petals

7. Example of vegetative propagation by leaves is:
(A) Mint
(B) Potato
(C) Garlic
(D) Petals

8. Charles Darwin proposed the mechanism of organic leaves is:
(A) 1838
(B) 1882
(C) 1930
(D) 1900

9. Making a normal pigmentation is example of:
(A) Phenotype
(B) Genotype
(C) Traits
(D) Chromosome

10. Non-renewable resource of:
(A) Fossil fuels
(B) Wind
(C) Water
(D) Soil

11. Diazepam is a drug of:
(A) Vaccines
(B) Sedatives
(C) Antibiotics
(D) Analgesics

12. The enzyme which use to dissolve blood clots is:
(A) Amylase
(B) Pepsin
(C) Tripsin
(D) Urokinase

Past Papers of Biology 10th Class Lahore Board 2018
BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 48

(PART-I)

2. Write short answers to any Five (5) questions: (10)

(i) Explain stomata.

(ii) What is alveolus?.

(iii) Explain thermoregulation.

(iv) Define osmosis.

(v) Explain renal pelvis.

(vi) Explain reflex arc.

(vii) What is myopia? .

(viii) Explain oval window.

3. Write short answers to any FIVE (5) questions: (10)

(i) Differentiate between compact and spongy bone.

(ii) What is meant by antagonism?

(iii) Write two advantages of vegetative propagation.

(iv) Write the functions of hilum and micro Pyle in seed.

(v) Differentiate between epigeal and hypogeal germination.

(vi) Define traits also give an example.

(vii) Differentiate between homozygous and heterozygous genotype.

(viii) What are breeds and cultivars?

4. Write short answers to any FIVE (5) questions: (10)

(i) Define community.

(ii) What is a food web?

(iii) Define alcoholic fermentation.

(iv) What is recombinant DNA?

(v) What is beta endorphin and what is its use?

(vi) . What are pharmaceutical drugs?

(vii) What is beroin, what is its effect on CNS?

(viii) For what purpose vaccines are used?

(PART-II)

Note: Attempt any TWO questions:

5. (a) Describe in detail osmotic adjustments in plants. 5

(b Write a note on nerve cell or neuron. 4

6. (a) What is skeleton? Explain the components of human skeleton. 5

(b) What is seed germination? Explain conditions for seed germination. 4

7. (a) Describe in detail the biotic components of ecosystem. 5

(b) What are the objectives of genetic engineering? 4