Source: http://www.moraetamils.com/PastPaperv2/PastPaper/2015/15BioE/
Timestamp: 2019-04-18 22:33:59+00:00

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Tamil students, University of Moratuwa, Faculty of Engineering. Tamil students,Tamil student, University of Moratuwa, Faculty of Engineering. Tamil students, Tamil student, University of Moratuwa, Faculty of Engineering.
1. Which one of the following elements groups contain only the trace elements required by man?
2. Which one of the following can be hydrolyzed in human body?
In G after mitosis, which of the following would one daughter cell contain?
4. Which one of the following metabolic pathways most likely evolved first?
5. Which one of the following feature is not common to C and C photosynthesis?
3. Cyclic photophosphorylation 4. Non cyclic photophosphorylation .
10 minute period of vigorous activity?(X- Time in min. Y-concentration lactic acid in arbitrary units).
7. Which of the following statement regarding enzymes is incorrect?
5. The active site of enzyme may be blocked by inhibitors.
8. Which of the following is not a function of bone?
9. Which of the following features is unique to the organism group indicated against it?
10. In a given phylum, which taxon contains the greatest number of species?
11. Which of the following characters is unique for Domain Achaea?
12. Which of the following animal classes does not include animals those posses tentacles?
13. Which of the following vitamin function relationship is incorrect?
16. Which of the following is incorrect regarding phloem transport?
hepatic vein than in other blood vessels?
18. Which of the following is incorrect regarding stomata?
19. A part of the brain used in the transfer of information from one cerebral hemisphere to the other is the?
20. Which one of the following functions regarding autonomic nervous system is incorrect?
21. Which one of the following statements regarding human receptors is incorrect?
have a tumor. Which of the following structure could be affected?
25. Which animal would produce a nitrogenous waste product with the lowest solubility in water?
26. Prominent features of some human bones are listed (A-D) below.
Which of the following is correct order of bones with above characters?
Which one of following is in the proper sequence?
28. Which one of the plant growth substances helps to overcome water stress in plants?
29. Which of the following plants does not show natural vegetative reproduction?
30. Which of the following is not a common character to both Selaginella and Cycas?
31. Which of the following is not true of a codon?
which of the following must true?
be the genotypes of the plants?
Which of the following represents the correct relative positions of these four genes on the chromosome?
indicate the direction of energy flow.
36. If man is the member of this ecosystem which of the following most likely represents him?
1. A 2. B 3. C 4. D. 5. E.
37. Which of the following is the herbivore in this ecosystem?
38. Which of the following is incorrect regarding ecosystems?
4. Trees of the montane forests have columnar trunks with smooth barks.
39. Which one of the following micro organism is used for production transgenic plants?
40. Which of the following antibiotic inhibits the fungal growth by causing damage in their cell membrane?
Which of the following secretary organ Hormone Target organ combination/s is / are correct?
membrane. Which structure / structures at the following is / are most likely to be present in this tissue?
43. Which of the following disease/s is /are causes by bacteria?
44. Which of the following is /are common for Brittle star, Sea cucumber and Sea Lilly?
45. Which of the following statements is / are incorrect regarding the human placenta?
46. Which of the following organelles and their relative function/s is / are incorrect?
47. Which of the following statements regarding human eye is / are correct?
during the regulation of the body temperature in human?
* This question paper consists of 10 questions in 17 pages.
* This question paper comprises part A and Part B. The time allotted for both parts is three hours.
* Answer all four questions on this paper itself.
answers and extensive are not expected.
* You are permitted to remove only part B of the question paper from examination hall.
1. A. i. Indicate three general characters of carbohydrates.
ii. Indicate an example carbohydrate for the following functions.
c. Formation of exoskeleton of arthropods.
d. Only cell wall component of red algae.
iii.a. In which type of lipid found in plasma membrane of Eukaryotes?
b. What are the component are obtained from the hydrolization of the above lipid?
c. What in the steroid generally found in the human blood?
iv. a. In which cellular organelle the synthesis of lipids takes place?
b. Give two functions of the above mentioned organelle other than the synthesis of lipid.
B i. What is cell cycle?
iii. a. What is the name of the recently accepted model for plasma membrane?
b. What is the reason for the above name?
v. Name a co-enzyme that is involved in the cellular respiration and indicate its function.
C. i. What is binomial nomenclature?
ii. Write the phylum for the given characters.
b. Heterosporous, motile gametes, seeds.
e. Zoospores, motile gametes, saprophytic nutrition.
iii. What is artificial dichotomous key?
Classify the above fishes (A-F) using the dichotomous key provided be low.
v. The above organisms can be included in two classes. Name such classes.
2.A.i. a. What is resting potential?
b. What are the three factors responsible for the resting potential in a nerve cell?
ii. a. What is action potential?
Briefly describe the events that take place in the phases  and  in he above diagram.
iii. Indicate the part of the human brain for the following functions.
b. Controls the reflex movement of eye muscles.
d. Control the mental emotions.
iv. What is reflex arc?
v. What are the components of simple reflex arc?
vi. What is the contribution of circulatory system in co-ordination?
B i.a. What is pulse pressure?
b. Indicate four human that retaliate the human blood pressure.
ii. What is hyper tension in human?
iv. In which bone the bone A proximally articulates? and indicant te the specific part of the articulation.
C. The following diagram shows the cross section of human testis.
i. Name the cells A,B and C.
ii. Indicate three functions of cell A.
iii. Name one hormone influences in the given cell type.
iv. a. What is meant by hyper activation?
b. What is the significance of the above in the fertilization?
b. Which ion is involved with the Capacitation?
vi. The following diagram shows the different stages found in the life cycle of Cycas.
a. Name 1 - 4 in the above stages.
b. What is the resumbalance part of stamen of flowering plants in the above diagram.
c. Which parts can not be seen in flowering plants in the above diagram?
The above diagram shows a eco system found in Sri Lanka.
i.a. Identify the above ecosystem?
b. Give two special features regarding the plants in the lateral view.
ii. In which climatic zone the above eco system found in Sri Lanka?
iii. What are the reasons for the above ecosystem is considered as bio diversity hot spot of the world?
v. Indicate three biomes in temperate zone.
vi. Name the biomes that show the following characters.
B. i. What is the extinction of species?
ii. What is the significance of extinction that naturally occurs?
iv. a. What is IUCN Rad Data Book?
b. Give four IUCN Groups from the highest threatens to a correct sequential order and give one example.
v. Indicate the major features of the following convention of bio diversity.
C. i. a. Which hypothesis is accepted to the origin of live on earth?
ii. a. What is Hardy - Weingberg equilibrium?
deduction of some inferences. Name such important observations of him.
vi. a. Which is the simple technology that is used to separate DNA fragments in laboratory?
b. What are DNA probes?
4. A.i. What is meant by sterilization in microbiology?
ii. Briefly describe the sterilization method for the followings.
iii. Indicate three physical changes take place in spoiled foods by micro organisms.
iv.a. What is intoxication of food?
b. What is the causative microbe that responsible for canned foods?
v. Indicate the bacterial species that involves in the following in diestrual products.
vi. Indicate the bacterial species regarding the following chemical changes is the nitrogen cycle.
B. i. a. What is stomata?
b. What is the major function of stomata?
seen under the high power of a light microscope.
iv.a. Name an apparatus to measure the transpiration.
b. Give three important parameters taken before to setup of the above mentioned meter.
v. What are the four adaptations that have plants to reduce transpiration?
C. i. What is plant growth substances?
ii. Which plant growth substance is conducted through phloem tissue in plants?
iii. Indicate the major plant growth substance for the following processes.
permanent tissues that produced by them.
v. a. What is wood?
b. How functionally defter heart wood from sap wood?
5. a. Describes the fine structure of mitochondria.
oxidization and generate energy in an eukaryotic cell.
6. a. Briefly describe the gross structure of human lungs.
b. Explain the role of nervous control in normal ventilation of human lungs.
7. a. Describe the gross structure of human eye.
b. Indicate the functions of each part of the human eye.
8. Write an essay in natural resources and their judicious use.
9. Briefly describe the role of micro organisms in the following processes.

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