GUJRANWALA BOARD 2017
(Objective Type)
Biology
Time Allowed: 20 Minutes

Maximum Marks: 17
NOTE: You have four choice 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 circle. Cutting or filling two or more circles will result in zero mark in that question. Attempt as many questions as given in objective type questions papers and leave others blank. No credit will be awarded in case. BUBBLE are not filled. Do not solve questions on this sheet of OBJECTIVE PAPER.

• . The bio element which account 18% of total mass in human body is:

1. Oxygen
2. Carbon  
3. Hydrogen  
4. Nitrogen  

• . Keratin is an example of fibrous protein present in

1. Nails
2. Blood
3. Muscle
4.  Bones

•   The competitive inhibitor of sucenic acid is

1. Fumaric acid
2. Malonic  acid
3. Citric acid
4.  Acetic acid

• The attachment of two sub units of ribosomes is controlled by

1. Ca2+  
2. Mg2+   
3. K+
4. Fe2+

• Hepatitis ‘B’ is also called

1. Delta hepatitis
2. Infectious hepatitis
3. Infusion hepatitis
4. Serum hepatitis

• Bacteria without any flagella are called

1. A-trichous
2. mono-trichous
3. lopho-trichous
4. amphi-trichous

• The edible algae is

1. mushroom
2.  kelps
3.  diatoms
4.  Dino flagellates

• . The visible part of lichen is

1. Bacteria
2.  Roots 
3.  Algae 
4.  Fungi

• . All seed producing plants are called

1. Bryophytes 
2.  Pteridophytes
3.  tracheophytes
4.  Spermatophytes

• Flame cells are excretory cells in

1. Flat worms
2.  Segmented worms
3.  round worms
4.  Insects

• Syrinx is organ of voice in

1. Amphibian
2.  Reptiles  
3.  Birds  
4. Mammals  

• The dark reaction of photosynthesis occurs in

1. cytoplasm
2.  chlorophyll
3. stroma
4.  granum

• The amount of energy present within the chemical bonds of glucose is converted into ATP during anaerobic respiration is

1. 1%
2.  2%
3.  3%
4.  4%

• The intestinal caecae are present in the digestive system of

1. amoeba
2.  hydra
3.  planaria
4.   cockroach

• During photorespiration glycine is converted into serine in organelle

1. peroscisomes
2. mitochondria
3. chloroplast
4.  Golgi bodies

•   Single circuit heart is present in

1. fish
2. amphibian
3.  reptiles
4.  Mammals

• Plasma proteins constitute present by weight of plasma.

1. 1-2
2. 3-6
3.  7-9
4.  10-13

INTER PART 1 GUJRANWALA BOARD 2017
(Subjective Type)
Time 2.40 Hours
Group-I

Maximum Marks: 68
NOTE: - Write same question number and its part number on answer book, as given in the question paper.
2. Attempt any eight parts.

1. Define protective role of water.
2. Differentiate between prosthetic group and coenzymes.
3. How enzyme concentration affect enzyme action?
4.  What is lock and key model of enzyme action?
5. Differentiate between obligate and facultative parasites.
6.  What are rusts and smuts diseases of plants.
7. What are gastropods?
8. What are the harms caused by insects?
9.  What is the importance of sponges?
10.  How does metamorphosis occur in arthropoda?
11. Explain chemiosmosis.
12. Differentiate between aerobic and anaerobic respiration.

3. Write short answers to any EIGHT questions.

1. Why organ system is more complex in animals as compared to plants?
2.  Define hydroponic culture technique and give its application.
3.  Compare composition of primary and secondary cell walls.
4.  Give role and composition of cytoskeleton.
5. Define apicomplexans.
6.  What am kelps?
7. Give characteristics of oomycotes.
8. Highlight evolutionary significance of euglenoids.
9. Give advanced characters of sporphyte of anthoceropsida.
10. What are founds in which group they are found?
11.  Define heart attack and give its causes.
12. Define antigen and antibody.

4. Write short answers to any SIX questions.

1. Write down the names of four common human viral diseases.
2.  Differentiate between microbicidal and microbistatic effects.
3.  What is the location of gastric gland? Write the names of cells that constitute the gastric gland.
4.  Give the role of large intestine of human.
5.  Write the composition of pancreatic juice.
6.  Distinguish between cutaneous and pulmonary respiration.
7.  How air is better medium than water to breath?
8.  Where carbonic anhydrase enzyme is present? Give its role.
9.  What is respiratory distress syndrome?

SECTION-II
NOTE: - Attempt any three questions.
Q5.

1. Explain the biological method for solving a biological problem.
2.  Write down any four differences between arteries and veins.

Q6.

1. Write a note on acyl glycerol.
2.  Explain different processes involved in digestion and absorption in animals.

Q7.

1. Write a note on mitochondria.
2. Explain the chloroplast as the "sites of photosynthesis" in plants.

Q8.

1. Describe the differentiation between monocotyledon and dicotylendon plants.  (Any four differences)
2. Explain the structure of bacteriophage.

Q9.

1. Describe various methods to control the bacteria.
2. Describe the life cycle of disease loose smut of wheat.