Biology
(objective)
PAPER (I)
TIME ALLOWED:- 20 MINUTES
PAPER CODE 2461
MAXIMUM MARKS:-17
NOTE:- you have four choices for each objective type question as A,B,C and D. the choice that you think is correct , fill the circle in front of the question number. Use marker or pen to fill the circles. Cutting or filling two or more circles will result in zero mark in that question. attempt as many questions as given in objective type question paper and leave others blank. write the letter A,B,C or Din the column against each question. If there is a contradiction in the bubble and hand written answer, bubble option will be considered correct.

Question#1

• Muscle tissue is specialized for :-
  
  (A) Contraction
  (B) Conduction
  (C) Secretion
  (D) Excretion
  
  
• Most of the monosacharides from a ring structure when in :-
  
  (A) Water
  (B) Solution
  (C) Solvent
  (D) Stomach
  
  
• Reversible inhibitors from weak linkages with the:-
  
  (A) Enzyme
  (B) reactant
  (C) product
  (D) substrate
  
  
• The fluids that surrounds the thylakoid is called:-
  
  (A) Matrix
  (B) Stroma
  (C) Miliess
  (D) Medium
  
  
• Capsid is made up of protein subunits known as :-
  
  (A) Capsidomeres
  (B) Capsomers
  (C) Capomere
  (D) Protomeres
  
  
• The condition in which bacteria single polar flagellum is called
  
  (A) Monotrichous
  (B) Atrichouis
  (C) Cerdotrichous
  (D) Amphtrichous
  
  
• Most ciliates are capable of sexual process known as :-
  
  (A) Oogamy
  (B) mating
  (C) conjugation
  (D) copulation
  
  
• Most of the visible part of lichen consists of
  
  (A) Algae
  (B) Fungi
  (C) Roots
  (D) Bacteria
  
  
• chlorophyll”a” is:-
  
  (A) Yellow green
  (B) Blue green
  (C) Orange green
  (D) Violet blue
  
  
• The middle part of the small intestine of man is called :-
  
  (A) Jejunum
  (B) Duodenum
  (C) lleum
  (D) Colon
  
  
• about 70% C O2 is carried as
  
  (A) CO₂
  (B) Carboxyhaemoglobin
  (C) Bicarbonate ion
  (D) Carbonate ion
  
  
• Clitoriaternatea is used against:-
  
  (A) Dog bite
  (B) Insect bite
  (C) Horse bite
  (D) Snake bite
  
  
• The smallest of all bryophytes are:-
  
  (A) Mosses
  (B) Hornworts
  (C) Liverworts
  (D) Whisle ferns
  
  
• blastocoele persisit throughout the life in
  
  (A) Porefira
  (B) Cnidaria
  (C) Annelid
  (D) Nematode
  
  
• dolphin is:-
  
  (A) Fish
  (B) Bird
  (C) Amphibian
  (D) Mammal
  
  
• the pairs of lateral hearts in earthworm are:-
  
  (A) 4025
  (B) 5026
  (C) 6027
  (D) 7028
  
  
• 90%of total transpiration is:-
  
  (A) Cuticular
  (B) Stomatal
  (C) Lenticular
  (D) Epidermal

BIOLOGY
(SUBJECTIVE)
PAPER (I)
TIME ALLOWED: 2.40 HOURS
MAXIMUM MARKS :68

2. ANSWER BRIEFLY ANY EIGHT PARTS FROM THE FOLLOWING:- 8X2=16

• What is biochemistry? Give its importance
• Differentiate amylase and amylopectin starches.
• What is role of centriole?
• Differentiate between endocytosis and exocytosis.
• Give scientific name of plasmodial slime mold. Give its importance
• Write down importance of chlorella
• Differentiate between absorption and action spectrum.
• Define redox process. Give example.
• Differentiate between photosynthetic and accessory pigments
• What are insectivorous plants?how they get their carbohydrates.
• Give names hormones secreted by digestive system. Also write their functions.
• What is pyrosis ? give its causes.

3. Answer briefly any eight parts from the following:- 8x2=16

• Write fluid mosaic model of cell membrane
• What do you know about leucoplast?
• What you know about herpes simplex?
• What is lysogenic cycle of phage?
• Write physical method to control bacteria.
• Write classification of bacteria on the basis of shapes
• Write gaseous exchange in plants.
• What you know about pleura and alveoli
• Write apoplast symplast pathways.
• What you know aboutthalassaemia?
• What you know about blue babies?
• How thrombus formation take place

4. Answer briefly any six parts from the following:- 6x2= 12

• Give effect of ph on enzyme action.
• Write four postulates of germ theory of disease.
• Differentiate gram –positive from gram-negative bacteria.
• What is photorespiration?
• Define ventilation and respiration.
• What is lenticular transpiration?
• Differentiate apoplast from symplast pathway of water in plants.
• Sefine plasmolysis and pressure potential.
• What is imbibitions?

Section-III

NOTE: ATTEMPT ANY THREE QUESTIONS. 8X3=24
Question#5
(a) Discuss briefly phyletic lineage in biological organization. 4
(b) Discuss the mechanical aspects of breathing in man. 4

Question#6
(a) Describe life cycle of bacteriophage. 4
(b) Write down 8 characters of coelenterate. 4

Question#7
(a) Describe differences between prolcaryotic and eulcaryotic cells. 4
(b) Explain methods of reproduction in fungi. 4

Question#8
Explain different hypothesis to explain opening and closing of stomata. 8

Question#9
Describe digestion in small intestine alongwith absorption of food 8