BISE Multan · Class 11 · Biology

BISE Multan · Class 11 · Biology · 2025 · First Annual · Group 1

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: 2461 · 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 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.

Q1(1)
The oldest period of Mesozoic era is:
- (A)
  Jurassic
- (B)
  Triassic
- (C)
  Cretaceous
- (D)
  Durrasic
Q1(2)
The number of carbon atoms in waxes are:
- (A)
  $C_{5} - C_{15}$
- (B)
  $C_{15} - C_{25}$
- (C)
  $C_{25} - C_{35}$
- (D)
  $C_{35} - C_{45}$
Q1(3)
The charge bearing site of an enzyme is called:
- (A)
  Catalytic site
- (B)
  Binding site
- (C)
  Blocking site
- (D)
  Active site
Q1(4)
The liver and muscle cells appear to filled with glycogen with in membrane bounded organelles in disease:
- (A)
  Glycogenesis type I
- (B)
  Glycogenesis type II
- (C)
  Glycogenesis type III
- (D)
  Glycogenesis type IV
Q1(5)
Mumps and measles are caused by:
- (A)
  RNA naked virus
- (B)
  DNA naked virus
- (C)
  RNA enveloped virus
- (D)
  DNA enveloped virus
Q1(6)
These are hollow, non helical, filamentous appendages:
- (A)
  Cilia
- (B)
  Flagella
- (C)
  Legs
- (D)
  Pili
Q1(7)
The group of algae does not form motile cells in its life cycle:
- (A)
  Rhodophyta
- (B)
  Chrysophyta
- (C)
  Phaeophyta
- (D)
  Chlorophyta
Q1(8)
The symptoms of candidosis is:
- (A)
  Convulsion
- (B)
  Psychotic thrush
- (C)
  Vaginal thrush
- (D)
  Renal thrush
Q1(9)
The male gametophyte has two wings in:
- (A)
  Cycas
- (B)
  Taxus
- (C)
  Adiantum
- (D)
  Pinus
Q1(10)
The respiratory pigment of Molluscus is:
- (A)
  Haemocyanin
- (B)
  Haemolymph
- (C)
  Colourless pigment
- (D)
  Haemoglobin
Q1(11)
In birds the teeth are absent but they have a well developed organ for crushing of food:
- (A)
  Crop
- (B)
  Gizzard
- (C)
  Stomach
- (D)
  Caeca
Q1(12)
How much energy is released by removing terminal phosphate of ATP?
- (A)
  4.3 K cal
- (B)
  5.3 K cal
- (C)
  6.3 K cal
- (D)
  7.3 K cal
Q1(13)
The formula of Phytol is:
- (A)
  $C_{20} H_{32}$
- (B)
  $C_{20} H_{37}$
- (C)
  $C_{20} H_{39}$
- (D)
  $C_{20} H_{41}$
Q1(14)
The soil deficient with potassium causes:
- (A)
  Leaf margin yellow
- (B)
  Stunted growth
- (C)
  Whole leaf yellow
- (D)
  Early fruit fall
Q1(15)
The glycolate produced during photorespiration diffuses into:
- (A)
  Glyoxysomes
- (B)
  Peroxisomes
- (C)
  Phytochrome
- (D)
  Cytochrome
Q1(16)
The uptake of minerals by root cells is through:
- (A)
  Active uptake
- (B)
  Passive uptake
- (C)
  Without the uptake
- (D)
  Combination of active and passive uptake
Q1(17)
The average life span of red blood cells is:
- (A)
  4 months
- (B)
  5 months
- (C)
  6 months
- (D)
  7 months

Subjective

Source code: 25 · Printed marks: 68 · Time: 2.40 Hours

Write same question number and its parts number on answer book, as given in the question paper.
Q2: Attempt any eight parts. 8×2=16.
Q3: Attempt any eight parts. 8×2=16.
Q4: Attempt any six parts. 6×2=12.
SECTION-II: Attempt any three questions. 3×8=24.

SECTION-I

2.
Attempt any eight parts.
Q2(i)
What is heat of vaporization? Give its significance.
(2 marks)
Q2(ii)
Differentiate between Apoenzyme and Holoenzyme.
(2 marks)
Q2(iii)
Compare Lock and Key model and Induce Fit model of Enzyme action.
(2 marks)
Q2(iv)
Differentiate between Prosthetic group and Coenzyme.
(2 marks)
Q2(v)
Enlist some plant diseases due to Fungi.
(2 marks)
Q2(vi)
Differentiate between Conidia and Spores.
(2 marks)
Q2(vii)
What is Enterobius Vermicularis? Give its medical importance.
(2 marks)
Q2(viii)
How earthworm moves? Give its mechanism.
(2 marks)
Q2(ix)
Define Metamorphosis. Give its different stages.
(2 marks)
Q2(x)
Give some harmful effects of insects.
(2 marks)
Q2(xi)
What are accessory pigments?
(2 marks)
Q2(xii)
Compare absorption spectrum with action spectrum of light.
(2 marks)
3.
Attempt any eight parts.
Q3(i)
Define bioelements. Give two examples.
(2 marks)
Q3(ii)
How can identical farm animals (Cattles) be produced?
(2 marks)
Q3(iii)
What is cytoplasm? What is its most important function?
(2 marks)
Q3(iv)
Define vacuole and why is it very important for plant cells.
(2 marks)
Q3(v)
How are protists different from all other kingdoms?
(2 marks)
Q3(vi)
What do you know about Trypanosoma?
(2 marks)
Q3(vii)
How do algae differ from plants?
(2 marks)
Q3(viii)
What is the evolutionary significance of Euglenoids?
(2 marks)
Q3(ix)
How did the ovule evolve over time?
(2 marks)
Q3(x)
Differentiate between rhizoids and rhizome.
(2 marks)
Q3(xi)
What is systemic circulation?
(2 marks)
Q3(xii)
How is adhesion between water molecule and xylem wall helpful in the ascent of sap?
(2 marks)
4.
Attempt any six parts.
Q4(i)
Why viruses are obligate intracellular parasite?
(2 marks)
Q4(ii)
What is ecological importance of bacteria?
(2 marks)
Q4(iii)
Write down main functions of human liver.
(2 marks)
Q4(iv)
Differentiate between peristalsis and antiperistalsis.
(2 marks)
Q4(v)
Write a brief note on parasitic nutrition.
(2 marks)
Q4(vi)
How does breathing differ from respiration?
(2 marks)
Q4(vii)
Give a brief account of asthma.
(2 marks)
Q4(viii)
Differentiate between inspiration and expiration in man.
(2 marks)
Q4(ix)
What are causes of lung cancer?
(2 marks)

SECTION-II

Attempt any three questions.

Q5(a)
What do you know about biological method to solve a biological problem?
(4 marks)
Q5(b)
Define immunity and give its types.
(4 marks)
Q6(a)
Write a detailed note on ribonucleic acid.
(4 marks)
Q6(b)
Outline the classification of fungi. Also give characteristics and examples of each phylum.
(4 marks)
Q7(a)
How you can explain growth and reproduction in bacteria?
(4 marks)
Q7(b)
What are the unique features of Prothallus of Adiantum?
(4 marks)
Q8(a)
Discuss contribution of Carlous Linnaeus in Taxonomy with special reference to Binomial nomenclature. Give its rule.
(4 marks)
Q8(b)
How ATP is extracted from NADH and $F A D H_{2}$ during electron transport chain in aerobic respiration?
(4 marks)
Q9(a)
Write a note on structure and functions of chloroplast.
(4 marks)
Q9(b)
Describe the parasitic and symbiotic methods of plant nutrition.
(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 : same questions, source numbering preserved separately
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 · Printed marks: 68 · Time: 2.40 Hours