BISE Gujranwala · Class 11 · Biology

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

2025 · Second 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: 6464 · 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)
Xylem water tension is strong enough to pull water upto
- (A)
  100 meters
- (B)
  200 meters
- (C)
  300 meters
- (D)
  400 meters
Q1(2)
All are generated during non-cyclic electron flow of photosynthesis, except
- (A)
  ATP
- (B)
  ${N A D P H}_{2}$
- (C)
  $O_{2}$
- (D)
  ${C O}_{2}$
Q1(3)
Movement during this pathway is negligible
- (A)
  Vacuolar
- (B)
  Apoplast
- (C)
  Symplast
- (D)
  Non-vacuolar
Q1(4)
Flame cells are excretory structures in
- (A)
  Round Worms
- (B)
  Segmented Worms
- (C)
  Flat Worms
- (D)
  Pin Worms
Q1(5)
Diaphragm is a sheet of
- (A)
  Cardiac Muscles
- (B)
  Skeletal Muscles
- (C)
  Smooth Muscles
- (D)
  Non-Striated Muscles
Q1(6)
A sponge that consists of group of erect tubes
- (A)
  Sycon
- (B)
  Leucoselenia
- (C)
  Euplectella
- (D)
  Spongilla
Q1(7)
Leguminous plants have nodules on their
- (A)
  Stem
- (B)
  Leaves
- (C)
  Branches
- (D)
  Roots
Q1(8)
Point out the FAMILY of Corn
- (A)
  Zea
- (B)
  Mays
- (C)
  Poaceae
- (D)
  Plantae
Q1(9)
The number of water molecules produced during a Calvin Cycle
- (A)
  1 $H_{2} O$
- (B)
  2 $H_{2} O$
- (C)
  3 $H_{2} O$
- (D)
  4 $H_{2} O$
Q1(10)
Point out secondary lysosome among
- (A)
  Digestive vacuole
- (B)
  Autophagosome
- (C)
  Food vacuole
- (D)
  Both A and B
Q1(11)
$\underline{}$ is not a vascular plant.
- (A)
  Mosses
- (B)
  Whisk ferns
- (C)
  Ferns
- (D)
  Club Mosses
Q1(12)
The product of Succinic acid dehydrogenase will be
- (A)
  Succinic Acid
- (B)
  Malonic Acid
- (C)
  Fumaric Acid
- (D)
  All of these
Q1(13)
Hyphae having cross-walls
- (A)
  Coenocytic
- (B)
  Aseptate
- (C)
  Non-septate
- (D)
  Septate
Q1(14)
The unique Nitrogenous base of RNA that is not present in DNA, is
- (A)
  Adenine
- (B)
  Guanine
- (C)
  Cytosine
- (D)
  Uracil
Q1(15)
It is a malarial parasite
- (A)
  Entamoeba
- (B)
  Amoeba
- (C)
  Plasmodium
- (D)
  Forams
Q1(16)
Which one is a micro molecule?
- (A)
  Protein
- (B)
  Starch
- (C)
  Carbon dioxide
- (D)
  Glycogen
Q1(17)
Epulopiscium fishelsoni grow as large as
- (A)
  200 $μ m$ by 50 $μ m$
- (B)
  300 $μ m$ by 60 $μ m$
- (C)
  500 $μ m$ by 70 $μ m$
- (D)
  600 $μ m$ by 80 $μ m$

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)
Differentiate saturated fatty acids from unsaturated fatty acids.
(2 marks)
Q2(ii)
How Co-factor and activator are differentiated?
(2 marks)
Q2(iii)
Who and when induced fit model was proposed? What is its main theme?
(2 marks)
Q2(iv)
Define the term inhibitors with suitable examples.
(2 marks)
Q2(v)
What do you know about nuclear mitosis?
(2 marks)
Q2(vi)
What is the difference between obligate parasite and facultative parasite?
(2 marks)
Q2(vii)
How grade radiata is different from bilateria?
(2 marks)
Q2(viii)
How Ostia can be differentiated from Osculum?
(2 marks)
Q2(ix)
How polyps and medusae are different? What are their functions?
(2 marks)
Q2(x)
Write down shortly about archaeopteryx.
(2 marks)
Q2(xi)
How compensations point be defined?
(2 marks)
Q2(xii)
How can you differentiate alcoholic fermentation from lactic acid fermentation?
(2 marks)
3
Write short answers to any EIGHT (8) questions.
Q3(i)
Differentiate between deductive and inductive reasoning.
(2 marks)
Q3(ii)
How Radiotherapy differs from Chemotherapy?
(2 marks)
Q3(iii)
What is storage disease? Give example.
(2 marks)
Q3(iv)
Differentiate between Microtubules and Microfilaments.
(2 marks)
Q3(v)
What is chlorella? What is its use?
(2 marks)
Q3(vi)
Why green algae are considered as ancestors of plants?
(2 marks)
Q3(vii)
What are Kelps? Give their importance.
(2 marks)
Q3(viii)
Why Choanoflagellates are of special interest?
(2 marks)
Q3(ix)
Differentiate between Microphylls and Megaphylls leaves.
(2 marks)
Q3(x)
Why Sphenopsida are called Arthrophytes?
(2 marks)
Q3(xi)
Define Active Immunity. Give its types.
(2 marks)
Q3(xii)
Give different causes of Formation of Thrombus.
(2 marks)
4
Write short answers to any SIX (6) questions.
Q4(i)
How is HIV transmitted in humans?
(2 marks)
Q4(ii)
What do you know about plasmid?
(2 marks)
Q4(iii)
Describe the process involved in holozoic nutrition.
(2 marks)
Q4(iv)
What happens, when Daphnia comes in contact with Hydra?
(2 marks)
Q4(v)
Contrast the Diarrhoea with Constipation.
(2 marks)
Q4(vi)
Prove that Oxygen can be obtained more easily from air than from water for respiration.
(2 marks)
Q4(vii)
Describe different states of ${C O}_{2}$ transported in blood.
(2 marks)
Q4(viii)
Prove that enlarged alveoli have inadequate surface area for ventilation.
(2 marks)
Q4(ix)
Tabulate the changes in the composition of the breathed air.
(2 marks)

SECTION-II

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

Q5(a)
Describe the preventive measures to control the fatal diseases.
(4 marks)
Q5(b)
Summarize the types of transpiration after defining it.
(4 marks)
Q6(a)
Describe the unique properties of Carbon due to which it occupies the central position in the skeleton of life.
(4 marks)
Q6(b)
How do fungi reproduce asexually?
(4 marks)
Q7(a)
How do parasitic bacteria get their food? Compare Photosynthetic Bacteria with Chemosynthetic Bacteria?
(4 marks)
Q7(b)
Write down steps in the evolution of seed habit. Explain evolution of heterospory.
(4 marks)
Q8(a)
Describe some viral diseases, which are common in Pakistan.
(4 marks)
Q8(b)
Sketch and describe Glycolysis.
(4 marks)
Q9(a)
Explain the structure, types and functions of Endoplasmic Reticulum.
(4 marks)
Q9(b)
Describe the role of stomach in digestion.
(4 marks)

Original source references (2)

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

Objective · 6464 · Printed marks: 17 · Time: 20 Minutes
Subjective · 220 · Printed marks: 68 · Time: 2:40 Hours