Sub code 114
HSEB GRADE XI
2069(2013)
SUPPLEMENTARY EXAMINATION
Biology(Botany+Zoology)
Candidates are required to give their answer in their own words as far as practicable. The figures in the margin indicate full marks.
Time 3 hrs. Full marks – 75
Pass marks – 27
Note This question paper contains Botany portion in Group “A” and Zoology portion in Group “B”. So use separate answer sheets for Group “A” and Group “B” . First use answer for Group “A”.
Group “A”
Botany
Attempt all questions.
1. Answer in short : (any seven) 7x1=7
a. What is somatic cell?
b. Define heterosporous.
c. What is Oogamous?
d. Give and name one example of hypogynous flower.
e. What is the function of rhizome?
f. Give two examples of gymnosperm.
g. What is the function of Yeast?
h. Define parasitism.
i. What is molecular biology?
j. Define acid rain.
2. Answer in brief: (any five) 5x3=15
a. Describe the structure of nucleus.
b. Explain Metaphase and Anaphase stage of mitotic cell division.
c. What is Mitochondria? Explain.
d. Describe the structure and function of potonema.
e. Describe the scalariform conjugation.
f. What is binomial nomenclature system with example.
g. Discuss the function of carbohydrate.
3. Describe the family cruciferae in semi technical terms with distinguishing characters, floral diagram and floral formula with two examples of its economic importance. 7.5
Or
Explain life cycle of pteridophyte with emphasis on the alternation of generation.
4. Define ecosystem, describe in detail about the aquatic system. 8.
Group “B”
Zoology
Attempt all questions.
1. Answer in short : (any seven) 7x1=7
a. Define histology.
b. Name any two life processes.
c. Who gave the most widely accepted theory of “Origin of life”?
d. Who proposed the first theory of evolution?
e. Who is the father of taxonomy?
f. What do you understand by the term spawn?
g. What was the Hugo de Vries view regarding origin of species?
h. Name the hunting reserve of Nepal.
i. What do you mean by leadership?
j. Define pesticide.
2. Describe in brief : (any five) 5x3=15
a. The significance of conjugation in Paramecium.
b. Draw a well labeled diagram of T.S. of earthworm through gizzard.
c. Write down the main distinguishing feature of class mammalian.
d. The cutaneous respiration of frog.
e. Write a short note on vestigial organs.
f. The control measure of air pollution.
g. Flight adaptation in birds.
3. Discuss the process of food digestion in frog. 7.5
Or
Explain life cycle of Plasmodium vivax in human host.
4. Describe the various stages in the evolution of human being. 8.
HSEB GRADE XI
2069(2013)
SUPPLEMENTARY EXAMINATION
Biology(Botany+Zoology)
Candidates are required to give their answer in their own words as far as practicable. The figures in the margin indicate full marks.
Time 3 hrs. Full marks – 75
Pass marks – 27
Note This question paper contains Botany portion in Group “A” and Zoology portion in Group “B”. So use separate answer sheets for Group “A” and Group “B” . First use answer for Group “A”.
Group “A”
Botany
Attempt all questions.
1. Answer in short : (any seven) 7x1=7
a. What is somatic cell?
b. Define heterosporous.
c. What is Oogamous?
d. Give and name one example of hypogynous flower.
e. What is the function of rhizome?
f. Give two examples of gymnosperm.
g. What is the function of Yeast?
h. Define parasitism.
i. What is molecular biology?
j. Define acid rain.
2. Answer in brief: (any five) 5x3=15
a. Describe the structure of nucleus.
b. Explain Metaphase and Anaphase stage of mitotic cell division.
c. What is Mitochondria? Explain.
d. Describe the structure and function of potonema.
e. Describe the scalariform conjugation.
f. What is binomial nomenclature system with example.
g. Discuss the function of carbohydrate.
3. Describe the family cruciferae in semi technical terms with distinguishing characters, floral diagram and floral formula with two examples of its economic importance. 7.5
Or
Explain life cycle of pteridophyte with emphasis on the alternation of generation.
4. Define ecosystem, describe in detail about the aquatic system. 8.
Group “B”
Zoology
Attempt all questions.
1. Answer in short : (any seven) 7x1=7
a. Define histology.
b. Name any two life processes.
c. Who gave the most widely accepted theory of “Origin of life”?
d. Who proposed the first theory of evolution?
e. Who is the father of taxonomy?
f. What do you understand by the term spawn?
g. What was the Hugo de Vries view regarding origin of species?
h. Name the hunting reserve of Nepal.
i. What do you mean by leadership?
j. Define pesticide.
2. Describe in brief : (any five) 5x3=15
a. The significance of conjugation in Paramecium.
b. Draw a well labeled diagram of T.S. of earthworm through gizzard.
c. Write down the main distinguishing feature of class mammalian.
d. The cutaneous respiration of frog.
e. Write a short note on vestigial organs.
f. The control measure of air pollution.
g. Flight adaptation in birds.
3. Discuss the process of food digestion in frog. 7.5
Or
Explain life cycle of Plasmodium vivax in human host.
4. Describe the various stages in the evolution of human being. 8.
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