BAHAWALPUR Board 2012 Biology (New Marks Scheme) Inter Part I Paper Objective Type Time: 20 Minute Max. Marks:17 Note: Four possible choices A, B, C, and D to each question are given. Which choice is correct; fill that circle in front of that question number. Use marker or pen to fill the circle, cutting two or more will result in zero in that question.
Question#1
A number of spices identify so far:(a) 4.5 Million (b) 3.5 Million (c) 2.5 Million (d) 1.5 Million
Cyclosis and amoeboid movements are because of:(a) Microtubules (b) Microfilaments (c) Intermediate Filaments (d) Macrotubles
The catalytic activity of enzyme is restricted to a small portion of enzyme known as:(a) Active Site (b) Catalytic Site (c) Binding Site (d) Reacting Site
The amount of heat absorbed by a liquid when into gas is called:(a) Heat capacity (b) Heat of vaporization (c) Specific Heat (d) Absorbed Heat
Family includes related:(a) Individuals (b) Species (c) Genera (d) Orders
Ustilago species is most common:(a) Rust Fungi (b) Yeast (c) Mold (d) Smut Fungi
Most ciliates are capable of sexual process called:(a) OOgamy (b) Mating (c) Conjugation (d) Plasmogamy
Some bacteria are microphilic like: (a) Compylobacter (b) Pseudomonas (c) E.Coli (d) spirochacic
The biological name of sweat pea is:(a) Lathyrus Adoratus (b) Arachis Hypogea (c) Solanum Nigrum (d) Lycoperisicum excluentum
Syrinx is oxygen of voice in:(a) Birds (b) Reptiles (c) Mammals (d) Amphibians
In Annelids the organ for excretion are:(a) Flame Cells (b) Protonephrida (c) Nephridia (d) Nephrums
First complete seeds appeared approximately 365 million year during late:(a) Silurian Time (b) Cambrain time (c) Ordovician Time (d) Devonian Time
A serum containing antibodies is called:(a) Antigen (b) Antibiotic (c) Lymph (d) Antiserum
Deficency of phosphorus cause stunted growth of:(a) Shout (b) Root (c) Leaf (d) Flower
Respiratory pigment present in muscles is called:(a) Heamoglobin (b) Hacmocyanim (c) Myoglubin (d) Gloubin
Paper Subjective Type Time: 2:40 Hours Max. Marks:68 Note: Section I is compulsory. Attempt ant three (3) questions from Section II and any three (3) parts Section-I from Section III.
2. Write eight short answers:
What are Glycosidic Bonds?
Differentiate between Amylose and Amylopectin.
Define Pinnocytosis.
What is murcin?
What are Kelps?
Write two differences between fungus like protists and true fungi.
What is Absorption Spectrum?
Define stomata.
Define non-cyclic Phosphorylation.
What do you know about Radula?
Define pyrosis.
What are zymogen cells?
3. Write eight short answers:
What is gene therapy?
What is biological control.
Differentiate between retrovirus and bacteriophage.
How has small pox been eliminated from the world?
What is Aspergillosis?
What are Mycorrhizae?
Why Bryophytes are called amphibians of the plants?
What are Gymnosperms?
What is Cicinate Vernation?
What is the importance of Archacopteryx?
How coral Reefs are formed?
What are the functions of Placcenta?
4. Write Six short answers:
Define Apoenzyme.
What are giant amoeba?
Define thallus.
What is the functions of swinbladder?
Define mammals.
Define placenta.
Why do plaants appear green?
Define bioenergetics.
What are thylakoids?
PART-II
Question#5 (a) What is Clonning? Describe process of cloning. Also write down its Importance. 4 (b) Write a note on Inhabitors. 4
Question#6 (a) What are the effect of pH and temperature on the efficiency of an Enzyme Action. 4 (b) Write a note on Zooflagellates. 4
Question#7 (a) Differentiate between Prokaryotes and Eukaryotes. 4 (b) Write a note on Sphenopsida. 4
Question#8 Define Transpiration. What are different factors affecting the rate of Transpiration 8