BISE Multan · Class 11 · Biology

BISE Multan · Class 11 · Biology · 2026 · First Annual · Group 1 · New course

2026 · 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

These versions contain different content. Choose the source edition you need; they are alternatives, not consecutive exam sections.

Objective · 2461

Source code: 2461 · Printed marks: 17 · Time: 20 Minutes

2026 (1st-A)

INTERMEDIATE PART-I (11th Class)

BIOLOGY (NEW COURSE) PAPER-I GROUP-I

PAPER CODE:2461

OBJECTIVE

Roll No:

Q.No.1

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

1
The space between mantle and visceral mass is called $\underline{}$ .
- (A)
  Mantle cavity
- (B)
  Visceral mass
- (C)
  Radula
- (D)
  Foot
2
Whipworm belongs to which phylum?
- (A)
  Mollusca
- (B)
  Annelida
- (C)
  Nematoda
- (D)
  Arthropoda
3
Which structure is absent in Mycoplasmas ard Sarcoplasmas?
- (A)
  Cell membrane
- (B)
  Cell wall
- (C)
  Ribosome
- (D)
  All of these
4
Which organelle is not bound by any membrane?
- (A)
  Endoplasmic Reticulum
- (B)
  Mitochondria
- (C)
  Vacuole
- (D)
  Ribosome
5
All of the chemical reactions taking place with in a cell collectively called $\underline{}$ .
- (A)
  Metabolism
- (B)
  Anabolism
- (C)
  Catabolism
- (D)
  Redox process
6
Cellulose is a polymer of $\underline{}$ .
- (A)
  Alpha-glucose
- (B)
  Beta-glucose
- (C)
  Alpha-galactose
- (D)
  Alpha-fructose
7
When cofactor is loosely attached with enzyme it is called $\underline{}$ .
- (A)
  Apoenzyme
- (B)
  Holoenzyme
- (C)
  Prosthetic group
- (D)
  Coenzyme
8
The process that occurs during day and night in plants is:
- (A)
  Photosynthesis
- (B)
  Respiration
- (C)
  Vernalization
- (D)
  Photorespiration
9
Light dependents reactions occurs at $\underline{}$ .
- (A)
  Stroma
- (B)
  Cisternae
- (C)
  Thylakoid membranes
- (D)
  Intergrana
10
It refers to the attractive force between water and walls of xylem $\underline{}$ .
- (A)
  Adhesion
- (B)
  Cohesion
- (C)
  Transpiration
- (D)
  Tension
11
Early wood is also called as $\underline{}$ .
- (A)
  Autumn wood
- (B)
  Spring wood
- (C)
  Heart wood
- (D)
  Soft wood
12
Where does chemical digestion of carbohydrates begins?
- (A)
  Stomach
- (B)
  Oesophagus
- (C)
  Small intestine
- (D)
  Mouth
13
The width of Trachea ranges between
- (A)
  1 inch
- (B)
  2 inch
- (C)
  3 inch
- (D)
  4 inch
14
Which of the given chamber of heart has thickest wall?
- (A)
  Left atrium
- (B)
  Right atrium
- (C)
  Left ventricle
- (D)
  Right ventricle
15
It represents the completion of depolarization of ventricles:
- (A)
  P wave
- (B)
  T wave
- (C)
  QT interval
- (D)
  ST segment
16
The concentric layers of lamellae surrounding a central canal is called $\underline{}$ .
- (A)
  Haversian canal
- (B)
  Lacunae
- (C)
  Canaliculi
- (D)
  Periosteum
17
Number of vertebrae in thoracic region are $\underline{}$ .
- (A)
  5
- (B)
  7
- (C)
  12
- (D)
  14
25(N)(Obj)(✶)-2026(1st-A)-17000 (MULTAN)

Objective · 2463

Source code: 2463 · Printed marks: 17 · Time: 20 Minutes

2026 (1st-A)

INTERMEDIATE PART-I (11th Class)

BIOLOGY (NEW COURSE) PAPER-I GROUP-I

OBJECTIVE

Q.No.1

1
Which of the given chamber of heart has thickest wall?
- (A)
  Left atrium
- (B)
  Right atrium
- (C)
  Left ventricle
- (D)
  Right ventricle
2
It represents the completion of depolarization of ventricles:
- (A)
  P wave
- (B)
  T wave
- (C)
  QT interval
- (D)
  ST segment
3
The concentric layers of lamellae surrounding a central canal is called $\underline{}$ .
- (A)
  Haversian canal
- (B)
  Lacunae
- (C)
  Canaliculi
- (D)
  Periosteum
4
Number of vertebrae in thoracic region are $\underline{}$ .
- (A)
  5
- (B)
  7
- (C)
  12
- (D)
  14
5
The space between mantle and visceral mass is called $\underline{}$ .
- (A)
  Mantle cavity
- (B)
  Visceral mass
- (C)
  Radula
- (D)
  Foot
6
Whipworm belongs to which phylum?
- (A)
  Mollusca
- (B)
  Annelida
- (C)
  Nematoda
- (D)
  Arthropoda
7
Which structure is absent in Mycoplasmas and Sarcoplasmas?
- (A)
  Cell membrane
- (B)
  Cell wall
- (C)
  Ribosome
- (D)
  All of these
8
Which organelle is not bound by any membrane?
- (A)
  Endoplasmic Reticulum
- (B)
  Mitochondria
- (C)
  Vacuole
- (D)
  Ribosome
9
All of the chemical reactions taking place with in a cell collectively called $\underline{}$ .
- (A)
  Metabolism
- (B)
  Anabolism
- (C)
  Catabolism
- (D)
  Redox process
10
Cellulose is a polymer of $\underline{}$ .
- (A)
  Alpha-glucose
- (B)
  Beta-glucose
- (C)
  Alpha-galactose
- (D)
  Alpha-fructose
11
When cofactor is loosely attached with enzyme it is called $\underline{}$ .
- (A)
  Apoenzyme
- (B)
  Holoenzyme
- (C)
  Prosthetic group
- (D)
  Coenzyme
12
The process that occurs during day and night in plants is:
- (A)
  Photosynthesis
- (B)
  Respiration
- (C)
  Vernalization
- (D)
  Photorespiration
13
Light dependents reactions occurs at $\underline{}$ .
- (A)
  Stroma
- (B)
  Cisternae
- (C)
  Thylakoid membranes
- (D)
  Intergrana
14
It refers to the attractive force between water and walls of xylem $\underline{}$ .
- (A)
  Adhesion
- (B)
  Cohesion
- (C)
  Transpiration
- (D)
  Tension
15
Early wood is also called as $\underline{}$ .
- (A)
  Autumn wood
- (B)
  Spring wood
- (C)
  Heart wood
- (D)
  Soft wood
16
Where does chemical digestion of carbohydrates begins?
- (A)
  Stomach
- (B)
  Oesophagus
- (C)
  Small intestine
- (D)
  Mouth
17
The width of Trachea ranges between $\underline{}$ .
- (A)
  1 inch
- (B)
  2 inch
- (C)
  3 inch
- (D)
  4 inch
25(N)(Obj)(✶✶)-2026(1st-A)-17000 (MULTAN)

Subjective

Source code: 25(N) · Printed marks: 68 · Time: 2.40 Hours

NOTE: Write same question number and its parts number on answer book, as given in the question paper.
2. Write answers of any eight parts.
3. Write answers of any eight parts.
4. Write answers of any six parts.
NOTE: Write answers of any three questions.

SECTION-I

Q2(i)
Enlist any four animals of Phylum Arthropoda.
(2 marks)
Q2(ii)
Write various shapes with examples in echinodermata.
(2 marks)
Q2(iii)
Differentiate between euchromatin and heterochromatin.
(2 marks)
Q2(iv)
Compare functions of SER and RER.
(2 marks)
Q2(v)
Which types of similarities are present in mitochondria and chloroplast?
(2 marks)
Q2(vi)
Correlate the Abscisic Acid and $K^{+}$ in guard cells.
(2 marks)
Q2(vii)
What is Symplast Pathway?
(2 marks)
Q2(viii)
What is Vascular Cambium?
(2 marks)
Q2(ix)
What are Succulent Plants?
(2 marks)
Q2(x)
Why Cyanosis happens in blue babies?
(2 marks)
Q2(xi)
Write role of Hepatic Portal Vien.
(2 marks)
Q2(xii)
How Atrial Natriuretic Hormone lowers Blood Pressure?
(2 marks)
Q3(i)
What are Mesosomes?
(2 marks)
Q3(ii)
Write role and use of Pili.
(2 marks)
Q3(iii)
How competitive inhibitors can be used as antibiotics?
(2 marks)
Q3(iv)
Write Induced Fit Model.
(2 marks)
Q3(v)
Differentiate between Binding site and Catalytic site.
(2 marks)
Q3(vi)
What is Bolus?
(2 marks)
Q3(vii)
Write importance of lips as a part of mouth(oral cavity).
(2 marks)
Q3(viii)
Write importance of Villi.
(2 marks)
Q3(ix)
Enlist paired cranial bones.
(2 marks)
Q3(x)
What is Saddle joint? Give example.
(2 marks)
Q3(xi)
Highlight Troponin as a part of Skeletal Muscles.
(2 marks)
Q3(xii)
What is power stroke in Muscle function/mechanism?
(2 marks)
Q4(i)
What are stereoisomers? Give one example.
(2 marks)
Q4(ii)
What are Prostaglandins?
(2 marks)
Q4(iii)
Why the linkage between two nucleotides is called Phosphodiester linkage?
(2 marks)
Q4(iv)
Give the role of reaction center of photosystem.
(2 marks)
Q4(v)
Define the term Chemiosmosis.
(2 marks)
Q4(vi)
What is the role of coenzyme A in cellular respiration?
(2 marks)
Q4(vii)
Differentiate between visceral pleura and parietal pleura.
(2 marks)
Q4(viii)
What is the role of Respiratory Pigments?
(2 marks)
Q4(ix)
What is meant by COPD?
(2 marks)

SECTION-II

Q5(a)
Write down the four unique characteristics of chordates.
(4 marks)
Q5(b)
Explain control of Heart Excitation and Contraction.
(4 marks)
Q6(a)
Categorize and explain different types of stem cells.
(4 marks)
Q6(b)
Explain the absorption of food from the small intestine.
(4 marks)
Q7(a)
Write a brief description of Krebs cycle.
(4 marks)
Q7(b)
Describe causes, symptoms and treatment of sinusitis.
(4 marks)
Q8(a)
Explain the structure of HIV and its role in causing AIDS.
(4 marks)
Q8(b)
Describe the mechanism of muscle contraction and the role of calcium ions.
(4 marks)
Q9(a)
Justify the significance of sequence of amino acids in proteins with example of sickle cell anaemia.
(4 marks)
Q9(b)
Explain secondary growth in plants.
(4 marks)

Original source references (5)

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

Objective · 2461 · Printed marks: 17 · Time: 20 Minutes
Objective · 2463 · Printed marks: 17 · Time: 20 Minutes
Objective · 2465 · Printed marks: 17 · Time: 20 Minutes : same questions, source numbering preserved separately
Objective · 2467 · Printed marks: 17 · Time: 20 Minutes : same questions, source numbering preserved separately
Subjective · 25(N) · Printed marks: 68 · Time: 2.40 Hours