BISE Multan · Class 11 · Biology

BISE Multan · Class 11 · Biology · 2026 · First Annual · Group 2 · Old 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

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

2026 (1st-A)

INTERMEDIATE PART-I (11th Class)

BIOLOGY (OLD COURSE) PAPER-I GROUP-II

6462

OBJECTIVE

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
Tentative explanation of observation is called:
- (A)
  Hypothesis
- (B)
  Deduction
- (C)
  Theory
- (D)
  Law
2
Which give blue colour with iodine solution?
- (A)
  Glycogen
- (B)
  Starch
- (C)
  Pectin
- (D)
  Cellulose
3
Enzymes important in photosynthesis present in $\underline{}$ .
- (A)
  Mitochondria
- (B)
  Ribosomes
- (C)
  Chloroplast
- (D)
  Cytoplasm
4
The resolution power of compound microscope is $\underline{}$ .
- (A)
  $2 - 4$ angstrom
- (B)
  $2.0 n m$
- (C)
  $2 - 4 μ m$
- (D)
  $2.0 μ m$
5
Which one is Eukaryotic multicellular reducer?
- (A)
  Fungi
- (B)
  Plantae
- (C)
  Animalia
- (D)
  Protista
6
Which structure give greater pathogenicity to bacteria and protect them against phagocytosis?
- (A)
  Capsule
- (B)
  Slime
- (C)
  Flagella
- (D)
  Pili
7
Trichonymphas belong to which one group?
- (A)
  Amoebas
- (B)
  Zooflagellates
- (C)
  Actinopodes
- (D)
  Foraminiferans
8
Nuclear mitosis is characteristics of which kingdom?
- (A)
  Prokaryotae
- (B)
  Protista
- (C)
  Fungi
- (D)
  Plantae
9
Ginkgo is $\underline{}$ .
- (A)
  Fern
- (B)
  Bryophytes
- (C)
  Angiosperm
- (D)
  Gymnosperm
10
Which phylum belong to grade radiata?
- (A)
  Cnidaria
- (B)
  Porifera
- (C)
  Platyhelminthes
- (D)
  Mollusca
11
Malapighian tubules are $\underline{}$ structure present in Arthropoda.
- (A)
  Respiratory
- (B)
  Excretory
- (C)
  Nervous
- (D)
  Locomotry
12
Chemiosmosis take place in $\underline{}$ part of chloroplast.
- (A)
  Matrix
- (B)
  Stroma
- (C)
  Thylakoid membrane
- (D)
  All of these
13
Which is most electronegative in respiratory chain?
- (A)
  Cytochrome b
- (B)
  Cytochrome c
- (C)
  Cytochrome a
- (D)
  $O_{2}$
14
$\underline{}$ deficiency in soil results in stunted growth and strong chlorosis.
- (A)
  Nitrogen
- (B)
  Phosphorous
- (C)
  Potassium
- (D)
  Magnesium
15
In $\underline{}$ organelle the glycolate is converted into glycine through series of reactions
- (A)
  Mitochondria
- (B)
  Peroxisomes
- (C)
  Glyoxisomes
- (D)
  Mesosomes
16
Single circuit heart found in which group of animals?
- (A)
  Mammals
- (B)
  Birds
- (C)
  Fishes
- (D)
  Amphibians
17
The average life span of red blood cells is about $\underline{}$ months.
- (A)
  Three
- (B)
  Four
- (C)
  Five
- (D)
  Seven
26(O)(Obj)(✶)-2026(1st-A)-1000 (MULTAN)

Subjective

Source code: 26(O) · 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)
Define Glycosidic bond and peptide bond.
(2 marks)
Q2(ii)
Define activator. Give one example.
(2 marks)
Q2(iii)
Enlist four characteristics of enzymes.
(2 marks)
Q2(iv)
Differentiate between reversible and irreversible enzyme inhibition.
(2 marks)
Q2(v)
What do you mean by nuclear mitosis in fungi?
(2 marks)
Q2(vi)
What is Ergotism? Write its symptoms.
(2 marks)
Q2(vii)
Give only two points regarding the importance of Mollusca.
(2 marks)
Q2(viii)
Write two general characteristics of mammals.
(2 marks)
Q2(ix)
What is regeneration? Give its importance.
(2 marks)
Q2(x)
Differentiate between Diploblastic and Triploblastic organisms.
(2 marks)
Q2(xi)
What are Carotenoids?
(2 marks)
Q2(xii)
Define Photophosphorylation.
(2 marks)
Q3(i)
What is Marine Biology?
(2 marks)
Q3(ii)
Discuss the technique which is used to test whether a certain nutrient is essential for plant or not.
(2 marks)
Q3(iii)
How are the digestive vacuoles formed?
(2 marks)
Q3(iv)
Give the role of smooth endoplasmic reticulum in the cellular activities. (any two)
(2 marks)
Q3(v)
Define cilia. Give its importance to sessile ciliates.
(2 marks)
Q3(vi)
Why are algae not classified in plant kingdom?
(2 marks)
Q3(vii)
Give the two reasons for creating the kingdom Protista.
(2 marks)
Q3(viii)
Define algae. Give the importance of marine algae.
(2 marks)
Q3(ix)
What is double fertilization?
(2 marks)
Q3(x)
What are arthrophytes and why they are called so?
(2 marks)
Q3(xi)
What happened if there were no transport system in a multicellular animals?
(2 marks)
Q3(xii)
Give the two functions of Basophil in human body.
(2 marks)
Q4(i)
Write down the classification of corn.
(2 marks)
Q4(ii)
How misuse of antibiotics effect human health? Give two examples.
(2 marks)
Q4(iii)
In which inactive form trypsin is secreted? How it is activated?
(2 marks)
Q4(iv)
What are the main causes of Pyrosis?
(2 marks)
Q4(v)
Write down the role of bile in digestion in man.
(2 marks)
Q4(vi)
How is skin kept moist in earthworm?
(2 marks)
Q4(vii)
Write down the composition of inhaled and exhaled air.
(2 marks)
Q4(viii)
How do scuba divers breath during diving?
(2 marks)
Q4(ix)
How many types of gaseous exchange occur in Frog?
(2 marks)

SECTION-II

Q5(a)
Discuss individual and population levels of biological organization.
(4 marks)
Q5(b)
What is cardiac cycle? Write its phases.
(4 marks)
Q6(a)
What are polysaccharides? Discuss its different types.
(4 marks)
Q6(b)
What are Economic gains due to fungi?
(4 marks)
Q7(a)
Write a note on cell envelope of a bacteria.
(4 marks)
Q7(b)
Draw and explain the life cycle of Pinus.
(4 marks)
Q8(a)
Explain infection cycle of HIV.
(4 marks)
Q8(b)
Draw Calvin cycle only. (No explanation required.)
(4 marks)
Q9(a)
What is plasma membrane? Give its structure and functions.
(4 marks)
Q9(b)
How can you illustrate the oral cavity and the process of digestion in oral cavity of man?
(4 marks)

Original source references (5)

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

Objective · 6462 · Printed marks: 17 · Time: 20 Minutes
Objective · 6464 · Printed marks: 17 · Time: 20 Minutes : same questions, source numbering preserved separately
Objective · 6466 · Printed marks: 17 · Time: 20 Minutes : same questions, source numbering preserved separately
Objective · 6468 · Printed marks: 17 · Time: 20 Minutes : same questions, source numbering preserved separately
Subjective · 26(O) · Printed marks: 68 · Time: 2.40 Hours