Past Papers of Biology 10th Class Lahore Board 2019 Group-II

Past Papers of  Biology 10th Class Lahore Board 2019
LAHORE BOARD 2019 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II 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 World No Tabaco Day is observed every year on :
(A)31st
(B)31stMay
(C) 31st July
(D) 31st August

2.The maintenance of internal body temperature is called:
(A) Homeostasis
(B) Osmoregulation
(C) Thermoregulation
(D) Excretion

3.The largest part of forebrain is called:
(A) Cerebrum
(B) Thalamus
(C) Hypothalamus
(D) Cerebellum

4.The inner layer of eye is sensory and is called as:
(A) Sclera
(B) Cornea
(C) Choroid
(D) Retina

5. Which bone is part of appendicular skeleton:
(A) Pectoral Girdle
(B) Vertebral Column
(C) Skull
(D) Sternum

6. The latest method of vegetative propagation is:
(A) Budding
(B) Cuttings
(C) Cloning
(D) Bulbs

7. A cluster of specialized cells which surrounds and nourishes, each egg cell is called:
(A) Fallopian tubes
(B) Follicle
(C) Uterus
(D) Cervix

8. The specific combination of genes in an individual is known as:
(A) Phenotype
(B) Karyotype
(C) Allele
(D) Genotype

9. The specific sequence if DNA nucleotides is copied in the form of messenger RNA nucleotides is known as:
(A) Transaction
(B) Translation
(C) Transduction
(D) Translocation

10. The base of food chain is always formed by:
(A) Animal
(B) Ecosystem
(C) Plant (producer)
(D) Food web

11. E-*Coli bacterium was created for synthesizing human growth hormone in:
(A) 1955
(B) 1967
(C) 1970
(D) 1977

12. Which of the following drug is obtained from plants:
(A) Aspirin
(B) Morphine
(C) Insulin
(D) Cephalosporin

Past Papers of Biology 10th Class Lahore Board 2019
BIOLOGY (New Scheme) Time Allowed: 1:45 hour
PAPER - II (Essay Type) GROUP-II Max. Marks: 48

Part-I

2. Write short answers to any FIVE questions: (5x2 = 10)
i. What is the difference between breathing and cellular respiration?
ii. What is pneumonia? Write its symptoms.
iii. What is meant by lung cancer? Write its two causes.
iv. . What is called guttation?
v. What is meant by lithotripsy?
vi. What are two important functions of spinal cord?
vii. Differentiate between myopia and hypermetropia.
viii. What is paralysis? Write down its causes.

3. Write short answers to any FIVE questions: (5x2 = 10)
i. Differentiate between movement and locomotion
ii. What is skeleton? Write one merit.
iii. Explain parthenogenesis with example.
iv. Write down procedure of tissue culture.
v. Differentiate between two methods of pollination.
vi. Differentiate between translation and transcription.
vii. What is difference between homozygous and heterozygous.
viii. Write tow important processes for organic evolution.

4. Write short answers to any FIVE questions: (5x2 = 10)
i. Define ecosystem.
ii. What is deforestation? Give its two effects.
iii. What are pollutants? Give two examples.
iv. How cheese is formed?
v. How human growth hormone was obtained before genetic engineering?
vi. How terramycin developed?
vii. How sedatives work?

Part-II

Note: Attempt any TWO questions.
5. (a) Describe the two types of dialysis in detail.
(b) what is meant by neuron? Describe its types.
6. (a) Define joint and explain the types of joints with the help of examples.
(b) State any five methods of natural vegetative propagation.
7. (a) Explain producers and consumers with examples.
(b) Describe the basis steps in genetic engineering.