Structure and Functions of Enzymes

 Structure and Functions of Enzymes

https://youtu.be/8YaAZKbhugg?feature=shared

Support and Movements in Plants

 

 Confirmatory Test for Proteins

Past Paper Biology SISE Bahawalpur 2011

Total marks 17                                                                               Objective Part                                            Time: 20 Minutes

Note: Write answers to the questions on the objective answer sheet provided. Four possible answers A, B, C, D to each question are given which answer is correct, fill the relevant circle with pen ink to each question on the answer sheet provided.

1.  Each question has four options. Only one option is closest in meaning. Fill the right option from given.                             17

Sr.	Question	A	B	C	D
1	The optimum pH of Arginase is	6.70	7.70	8.70	9.70
2	Which of the following do not have cell wall	E-coli	Mycoplasma	Vibrio	Spirochete
3	Cretaceous, Jurassic and Triassic are Period of era	Proterozoic	Paleozoic	Mesozoic	Cenozoic
4	Dextrin, Agar, Pectin and Chitin is	Carbohydrate	Lipid	Protein	Nucleic Acid
5	Foot and mouth disease is caused  by	Algae	Bacteria	Fungi	Virus
6	The species of edible mushroom are about	100	200	300	400
7	Pulses belong to the following family	Rosaceae	Solanaceae	Fabaceae	Poaceae
8	The enzymes for Glyoxylate Cycle are located in the	Golgi bodies	Lysosomes	Glyoxysomes	Peroxisomes
9	Giants of the Protists Kingdom are included in	Green Algae	Red Algae	Brown Algae	Diatoms
10	Chlorophyll “a” found in all Photosynthetic Organisms except Photosynthetic	Algae	Bacteria	Fungi	Plants
11	In animals, Reproductive System develop from	Mesenchyma	Ectoderm	Endoderm	Mesoderm
12	The number of Chloroplast in each of Mesophyll Cell is about	20-200	20-100	10-100	10-200
13	Plasma Cells reproduced from	Eosinophills	Basophils	Monocytes	Lymphocytes
14	Hydathodes are associated with	Transpiration	Evaporation	Guttation	Transport of Food
15	Normal pH of human blood is	4.4	5.4	6.4	7.4
16	How many molecules of Oxygen can bind with a molecule of Myoglobin	One	Two	Three	Four
17	In Cockroach food is temporally stored in	Esophagus	Crop	Stomach	Gizzard

Answers Key by: Dr Saghir Ahmad 

1	A	2	B	3	C	4	a	5	d	6	b	7	c	8	c	9	c
10	B	11	D	12	B	13	d	14	c	15	d	16	a	17	b

 

Total marks 68                                  Subjective Part                                                 Time: 2:40 Hours

1.     Write short answer to any EIGHT of the following questions. (16)

(i)        Draw diagram of Bacteriophage and Label it.

(ii)        Why some Biologists found two Kingdom system of Classification unworkable?

(iii)       Distinguish between Cell Walls of Gram Positive and Gram Negative Bacteria?

(iv)       What are the functions of Flagella, Pili, Slime and Capsule in Bacterial Cell?

(v)        Distinguish between Pulmonary Circulation and Systemic Circulation.

(vi)       Distinguish between Cavum Venosum and Cavum Pulmonale.

(vii)      How mineral ions are transported into root whose concentration is already high in root cells?

(viii)     Distinguish between Symplast and Apoplast Pathway for transport of water.  

 

2.    Write short answer to any EIGHT of the following questions. (16)

(i)        What are Bracket /Shelf Fungi? Give their importance.

(ii)        Give the cause and symptoms of “ERGOTISM”.

(iii)       Calcareous Exoskeleton of Echinoderms may be called Endoskeleton’ Why?

(iv)       Define the term “Metameric Segmentation”.

(v)        What is “Schizocoelous Coelom”?

(vi)       How the secretion of Gastric Juice is regulated?

(vii)      Give the importance of Predator-Prey Interaction in an Eco System.

(viii)     Draw and label the structure of a “VILLUS”.    

 

3. Write short answer to any EIGHT of the following questions. (16)   

(i)         Differentiate between Population and Community.

(ii)        Why is there need to control Environmental Pollution?

(iii)       The active site of enzyme consists of two regions. Give their name and function.

(iv)       Give significant for Alternation of Generations.

(v)        Explain Circinate Vernation.

(vi)       Write vegetative characters of family solanaceae.

(vii)      Why Photosynthesis is called Redox Process? Illustrate your answer with equation.

(viii)     Enlist four stages of Cellular Respiration. Where do these occur?     

 

Question 4. Write short answer to any SIX of the following questions. (12)

(i)         Show Peptide Bend between two Amino Acids.

(ii)        What are Conjugated Molecules? Give one example.

(iii)       Differentiate between Resolution and Magnification of Microscope.

(iv)       What is Tay-Sachs’ disease.

(v)        What is Chlorella? Give its significances.

(vi)       How Ciliates differ from other protozoans.

(vii)     Write two properties of Respiratory Surfaces in animals.

(viii)     What are Parabronchi?

(ix)      Define Inhalation and Exhalation in Frog.     

SECTION-II

Q. 5:    (a)       Describe various properties of water which make it very important molecule for life.

            (b)       Explain Respiration in Birds.  

Q. 6:     (a)       Describe various types of Plastids.   

            (b)       How does sexual reproduction occur in Fungi?

Q. 7:    (a)       Discuss the Lytic Cycle of Bacteriophage.  

            (b)       Write in detail the functions of Lymphatic System.

Q. 8.    (a)       Write general characteristics of phylum Annelida.  .    

            (b)       Write down characteristics of Cyanobacteria.

Q. 9.    (a)       Describe and sketch light independent (Dark) Reactions of Photosynthesis.