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

Past Papers of  Biology 10th Class Gujranwala Board 2018 Group I
GUJRANWALA 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. In DNA nucleotide guanine forms pair with
(A) cytosine
(B) thymine
(C) uracil
(D) adenine

2. The fourth whorl of flower is
(A) calyx
(B) androecium
(C) gynoecium
(D) corolla

3. The industrial product from aspergillus is
(A) formic acid
(B) ethanol
(C) glycerol
(D) acrylic acid

4. The alternate forms of a gene are called
(A) loci
(B) alleles
(C) phenotypes
(D) genotypes

5. The example of ectoparasite is
(A) mosquito
(B) tape worm
(C) ascaris
(D) plasmodium

6. Destroy micro organisms found on non-living objects.
(A) disinfectants
(B) antibiotics
(C) antiseptics
(D) sedatives

7. The example of suckers is
(A) potato
(B) garlic
(C) mint
(D) ginger

8. Decreases the level of calcium ions in blood.
(A) calcitonin
(B) parathormone
(C) vasopressin
(D) oxytocin

9. These plants have very deep roots.
(A) hydrophytes
(B) xerophytes
(C) halophytes
(D) mesophytes

10. The bronchi present in air passageway are
(A) 1
(b)2
(c) many
(D) None of these

11. In neuron, nucleus is found in
(A) myelin sheath
(B) axons
(C) cell body
(D) node of ranvier

12. It is found as covering the ends of long bones.
(A) hyaline cartilage
(B) elastic cartilage
(C) fibrous cartilage
(D) inelastic cartilage

Past Papers of Biology 10th Class Gujranwala Board 2018
BIOLOGY (New Scheme) Time Allowed: 1:45 Hour
PAPER-II (SUBJECTIVE TYPE) GROUP -1 Max. Marks: 48

Note: Section I is compulsory. Attempt any TWO (2) questions from Section-II.

SECTION-I

2. Write short answers to any FIVE questions: (5x2 = 10)

i. What is the difference between breathing and respiration.

ii. What is meant by “Lenticels”?

iii. Define glomerular filterate.

iv. What is meant by tissue rejection?

v. Define hydrophytes with an example.

vi. Define stimulus with an example.

vii. Write the types of neuron on the basis of their function, (only names)

viii. What are the activities of autonomic nervous system?

3. Write short answers to any FIVE questions: (5x2 = 10)

i. Write down two differences between tandons and ligaments.

ii. What do you know about osteoprosis?

iii. Define alternation of generation in plants.

iv. What is the difference between cutting and grafting?

v. Define multiple fission. Also give an example.

vi. What is meant by genotype? Write the names of its types.

vii. What is punnett square? What is its use?

viii. What are the advantages of artificial Selection?

4. Write short answers to any FIVE questions: (5x 2 = 10)

i. What is meant by “denitrification”?

ii. Write two effects of acid rain.

iii. Define biotechnology. When was human insulin prepared with the help of bacteria?

iv. Differentiate between alcoholic fermentation and lactic acid fermentation.

v. What is genetic engineering?

vi. Define pharmacology.

vii. What are analgesics? Give example.

viii. What is Marijuana? Write its two bad effects.

SECTION-II 

5. (a) What do you know about xerophytes and halophytes? Explain it. 4

(b) Describe the structure of neuron. Also draw its diagram. 5

6. (a) Write types of joints. Also explain. 4

(b) Write advantages and disadvantages of vegetative propagation in plants. 5

7. (a) Write note on nitrogen cycle. 4

(b) Describe the achievements of genetic engineering. 5