BISE Gujranwala · Class 11 · Biology

BISE Gujranwala · Class 11 · Biology · 2025 · First Annual · Group 2

2025 · First Annual

Transcribed from the identified examination paper. Check the board, session and course before use. SchoolOrbit is not affiliated with the issuing board.

Objective

Source code: 6462 · Printed marks: 17 · Time: 20 Minutes

OBJECTIVE

You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.

Q1(1)
Community together with its non-living surroundings is termed as
- (A)
  Biome
- (B)
  Ecosystem
- (C)
  Biosphere
- (D)
  Niche
Q1(2)
$α$ -helix is one of the
- (A)
  Primary structure
- (B)
  Secondary structure
- (C)
  Tertiary structure
- (D)
  Quarternary structure
Q1(3)
The inhibitor of Succinic Acid Dehydrogenase will be
- (A)
  Succinic acid
- (B)
  Malonic acid
- (C)
  Fumaric acid
- (D)
  All of these
Q1(4)
These are involved in internal cell motion
- (A)
  Cytoskeleton
- (B)
  Microtubules
- (C)
  Microfilaments
- (D)
  Intermediate filaments
Q1(5)
Point out the class of corn
- (A)
  Plantae
- (B)
  Poales
- (C)
  Angiospermae
- (D)
  Poaceae
Q1(6)
All of these vaccines were developed by Pasteur, except
- (A)
  Rabies
- (B)
  Fowl cholera
- (C)
  Anthrax
- (D)
  Small pox
Q1(7)
Acetabularia belong to phylum
- (A)
  Chrysophyta
- (B)
  Phaeophyta
- (C)
  Rhodophyta
- (D)
  Chlorophyta
Q1(8)
The known species of fungi are approximately
- (A)
  50,000
- (B)
  100,000
- (C)
  150,000
- (D)
  200,000
Q1(9)
Sub-division of horse tails is
- (A)
  Psilopsida
- (B)
  Lycopsida
- (C)
  Sphenopsida
- (D)
  Pteropsida
Q1(10)
Circular muscles are absent in
- (A)
  Nematoda
- (B)
  Arthropoda
- (C)
  Echinodermata
- (D)
  Hemichordata
Q1(11)
Amphioxus is a
- (A)
  Urochordata
- (B)
  Cephalochordate
- (C)
  Higher chordates
- (D)
  Hemichordata
Q1(12)
Molecular formula of Phytol is
- (A)
  $C_{30} H_{39}$
- (B)
  $C_{24} H_{39}$
- (C)
  $C_{21} H_{39}$
- (D)
  $C_{20} H_{39}$
Q1(13)
Total number of phases in Calvin Cycle is
- (A)
  Five
- (B)
  Two
- (C)
  Three
- (D)
  Four
Q1(14)
Percentage of exhaled water vapours is
- (A)
  21%
- (B)
  4%
- (C)
  Saturated
- (D)
  Variable
Q1(15)
Maximum root depth (i.e 50 meters) is present in
- (A)
  Prosopis tree
- (B)
  Mango tree
- (C)
  Palm tree
- (D)
  Both B & C
Q1(16)
It is common among all the blood vessels
- (A)
  Outer layer
- (B)
  Middle layer
- (C)
  Endothelium
- (D)
  Material exchange
Q1(17)
Puccinia is a parasitic fungi that destroys
- (A)
  Corn plants
- (B)
  Wheat plants
- (C)
  Seed plants
- (D)
  Weed plants

Subjective

Source code: 220 · Printed marks: 68 · Time: 2:40 Hours

Note: Section I is compulsory. Attempt any THREE (3) questions from Section II.
2. Write short answers to any EIGHT (8) questions. (2x8 = 16)
3. Write short answers to any EIGHT (8) questions. (2x8 = 16)
4. Write short answers to any SIX (6) questions. (2x6 = 12)

SECTION-I

2
Write short answers to any EIGHT (8) questions.
Q2(i)
How can you differentiate between Nucleoside and Nucleotide?
(2 marks)
Q2(ii)
When and by whom the Lock and Key Model was proposed? What is its main point?
(2 marks)
Q2(iii)
What is the effect of pH on enzyme activity?
(2 marks)
Q2(iv)
How enzyme substrate complex is formed? What is the result of this?
(2 marks)
Q2(v)
How are fungi adapted on land? Write any two characters.
(2 marks)
Q2(vi)
What is fragmentation and budding?
(2 marks)
Q2(vii)
How can you differentiate spiral and radial cleavages?
(2 marks)
Q2(viii)
What do you know about coral reefs?
(2 marks)
Q2(ix)
How aquatic animals adapted to live in water? Describe any two
(2 marks)
Q2(x)
Write down any four characters of Class Aves.
(2 marks)
Q2(xi)
What is oxidative phosphorylation? Write down its mechanism.
(2 marks)
Q2(xii)
What are the chemicals formed during light dependent and light independent reactions?
(2 marks)
3
Write short answers to any EIGHT (8) questions.
Q3(i)
What is hydroponic culture technique? Write down its significance.
(2 marks)
Q3(ii)
Define biological control with examples.
(2 marks)
Q3(iii)
Differentiate between chromoplast and leucoplast.
(2 marks)
Q3(iv)
What is nucleolus?
(2 marks)
Q3(v)
Write down functions of two kinds of nuclei present in Ciliates.
(2 marks)
Q3(vi)
What is Giant Amoeba? Write down its importance.
(2 marks)
Q3(vii)
Write down evolutionary significance of Euglenoids.
(2 marks)
Q3(viii)
What is pellicle? Write down its function.
(2 marks)
Q3(ix)
What is overtopping and planation?
(2 marks)
Q3(x)
Write down advanced characters of sporophyte of anthoceropsida.
(2 marks)
Q3(xi)
What is artificial pace maker?
(2 marks)
Q3(xii)
Differentiate between antigens and antibodies?
(2 marks)
4
Write short answers to any SIX (6) questions.
Q4(i)
Biologically classify the corn.
(2 marks)
Q4(ii)
Find out the relationship between “Super Blue Green Algae” and “Complete Whole Food”.
(2 marks)
Q4(iii)
Determine the special methods of nutrition in plants.
(2 marks)
Q4(iv)
Write down the name of main parts of digestive system in the direction of passage of food in man (at least four names).
(2 marks)
Q4(v)
Describe the events which occur during swallowing.
(2 marks)
Q4(vi)
Differentiate Calvin-Benson Cycle with photorespiration.
(2 marks)
Q4(vii)
Write down the properties of respiratory surface in animal.
(2 marks)
Q4(viii)
What do you know about lungs capacity?
(2 marks)
Q4(ix)
Why the air cylinders are important for scuba diver descends in the sea?
(2 marks)

SECTION-II

Section I is compulsory. Attempt any THREE (3) questions from Section II.

Q5(a)
Discuss the molecular, organelles and cell levels of biological organization.
(4 marks)
Q5(b)
Discuss stomatal transpiration with the help of diagram.
(4 marks)
Q6(a)
Compare Fibrous Proteins with Globular Proteins.
(4 marks)
Q6(b)
Describe economic gains due to fungi.
(4 marks)
Q7(a)
Write physical and chemical methods to control bacteria.
(4 marks)
Q7(b)
What is alternation of generation? Write down its significance.
(4 marks)
Q8(a)
Write down a comprehensive note on Acquired Immune Deficiency Syndrome.
(4 marks)
Q8(b)
Oxygen evolved during photosynthesis comes from water; explain.
(4 marks)
Q9(a)
Write down the structure and function of Endoplasmic reticulum.
(4 marks)
Q9(b)
Explain role of Pancreas in digestion.
(4 marks)

Original source references (2)

The original files and numbering are retained. Equivalent files do not repeat the questions above.

Objective · 6462 · Printed marks: 17 · Time: 20 Minutes
Subjective · 220 · Printed marks: 68 · Time: 2:40 Hours