DAV PUBLIC SCHOOLS, ODISHA, ZONE II
QUESTION BANK
CLASS XI , Biology(044)
HALF YEARLY EXAMINATION (2015-16)
Diversity In Living organisms
VSA-1
1. What does ICZN stand for?
2. Name the group of monerans which lacks cell wall
3. Name the alga which is used as food supplement by space traveller?
4. Write examples of two species each belong to same genus?
5. Where do you find the following and write their functions :
a. Flame Cells,
b. Comb Plates
6. Mention 2 modifications in reptiles required for terrestrial mode of life?
7. Who proposed Binomial Nomenclature?
8. What is chemotaxonomy?
9. What maintains cell shape inEuglena ?
10 Name a virus that has single stranded RNA as genetic material .
SA-1(2 marks)
11 What is Coelom? What are various categories of animals based on it?Give diagrammatic
sectional view for all the categories.
12. Why do cartilaginous fishes have to swim constantly in water?
13. Identify the phylum for the following animal species
a) Limulus (king crab) b) Hirudinaria (leech)
c) Labeo (Rohu)
d) Loligo (Squid)
14. Why are bryophytes called the amphibians of plant kingdom?
15. What are the cells that make the leaves curl in plants during water stress?
16. What is mesosome in Prokaryotic cell? Mention the function that it performs.
17 Give the scientific terms for the following
a.The fungal component of Lichen
b. Fusion of two nuclei
c.Form of stored food in Rhodophyceae
d. Virus that infect bacteria
18.Answer the following in one word
a. Association of roots of Cycas with algae
b. The body cavity of sponges
c. The female gametophyte in the ovule of Angiosperms
d. Sporophytic stage of mosses
19. Differentiate between endarch and exarch type of xylem.
20 Draw well labeled diagram of an Euglena .
SA-II (3 marks)
21 Complete the table given bellow
Classes
Common
Name
Chlorophyceae
Green Algae
?
Brown Alage
Rhodophyceae
?
Major pigments
Stored food
?
Chlorophyll a,c
and
Fucoxanthin
Chlorophyll a,d
and
Phycoerythrin.
?
?
?
22. Define the followings
a)
Notochord
b)
Homeotherms
c)
Mycorrhizae
23. Write the functions of the followings
a) Nephridia
b) Cnidoblast
c) Malpigian tubules
24. Give an example of the following
a. Round worm
b. Fish possessing sting
c. Free floating form of cnidaria d. A limbless reptile
e. Locomotary organs of octopus f. Stinging organs of jelly fish.
25. a) How are viroids different from viruses ?
b) What is an atrichous bacterial cell?
c) Why are the members of Deuteromycetes called imperfect fungi?
26. Explain all vertebrates are chordates but all chordates are not vertebrates.
27. What are the modifications that are observed in birds that help them fly? (Six points).
28. Define the following terms
a. Algal bloom
b. Red tide
c. Dikaryophase
LA (5Marks)
29. Who introduced five kingdom classifications? What are the basis of this classification?
Name the phylums and three important characteristics of each phylum.
30. Write a short note on reproduction in fungi.
31. What is alternation of generation? Describe briefly the life cycle of an angiospermic plant.
32 To which kingdom protozoans belong.Name different groups of protozoan and two examples
of each.
UNIT -2 Structural organization In Plants & Animals
VSA-(1Marks)
1. What is meant by Mosaic vision?
2. What are Epigynous flowers?
3. What is the function of lenticels in plants?
4. Which part of ginger and onion are edible?
5. In swampy areas like the sunderban in West Bengal, plants bear special types of root called?
6 Mention two sites in human body where cartilage is present .
7 What are ootheca ?
SA I -(2Marks)
8. Differentiate between endarch and exarch type of xylem.
9. What is the function of phloem parenchyma?
10.
Draw well labeled diagram of a maize grain .
11. Where do you find aleurone layer? Write its composition
12 . Write four differences between T.S of dicot stem and monocot stem
13. Annual rings seen in a cut stem give an estimate of the age of the tree”. Justify.
14. Give a brief account of Sap wood and Heart wood found in trees.
15. Where are sclerites present in cockroach?
16. Write two differences between male and female cockroach
SA-(3 Marks)
17. Explain with suitable examples of the different types of phyllotaxy?
18. Give the scientific terms for the following
a. Petals attached to stamen
b. Fused carpels
c. Superior ovary
d. United sepals
e. Flower with radial symmetry
f. Sterile stamen
19. Differentiate between dicot stem and monocot stem.15)
19. a)What is casparian strip ?
b) Explain the terms
i) Endarch ii) Open vascular bundle
20 Define Inflorescence. Explain racemose and cymosein florescence.
(i)
Name the tissue responsible for Secondary growth.
(ii) Name the tissue that constitutes periderm.
(iii) What do you mean by open and closed vascular bundle?
21. Name different types of muscular tissues .Write three important features of each
muscular tissues.
22. Differentiate between the following
a) Bone & cartilage b) Tendon & Liagment c White collagen & Yellow collagen
23 .What is loose connective tissue? Briefly explain two examples of it.
24 What are pneumatophores ? How do they help the plants ?
25 What is pericarp ? Name three different regions of a fleshy fruit .
LA-(5Marks)
26. Define aestivation. Describe its various types in sepals and petals.
27. Describe the three different types of placentation found in flowering plants and
draw the diagram of each type of placentation.
28. Describe the semi-technical description of family-Fabaceae with floral formula and diagram
29. Explain digestive system of cockroach with the help of diagram.
30 State the location andfunction of different types of meristem .
CELL STRUCTURE AND FUNCTION
VSA- (1Marks)
1. Name the polysaccharides which constitute the exoskeleton of Arthropods..
2. Name the bond by which monosaccharides are linked to form polysaccharides.
3. Mention the position of centromere in an acrocentric chromosome.
4. What does ‘Omnis cellula- e cellula’ mean?
5. Name the most abundant protein in animal world.
SA-(2Marks)
6. Name the Organelle and write the function of following –
a. Suicidal bag of cell
b. Power house of cell.
7. State the four steps of catalytic cycle of an Enzyme action.
8. Name the stage of the cell cycle in which the following events occur.
(a) Chromosomes are moved to spindle equator.
(b) Centromere splits and chromatids separate.
(c) Pairing between homologous chromosomes takes place.
(d) Crossing over between homologous chromosomes takes place.
9. Write the name of the cell organelles against the parts
a. Axoneme
b. Cisternae
c. Cristae
d. Tonoplast
10. State the difference between
a. Zygotene and Pachytene
b. Rough ER and Smooth ER
11. A cell has 32 numbers of chromosomes. It under goes mitotic division. What will be the
chromosome numbers during metaphase? What would be the DNA content during anaphase?
12. What is meant by crossing over in cell division? Name the enzyme involved in the
process of crossing over .
13. a. Define cytokinesis.
b. How is cytokinesis different in plant cell than that of animal cell?
14. Describe the influence of temperature on enzyme action. Support the answer with graphical
presentation.
SA-II(3 Mar5ks)
15. Draw diagram showing (9+2) arrangement of centriole.
16. Name two Semiautonomous organelles & give reason.
17. Write a brief account on competitive inhibition. Explain with suitable examples.
18. Name the two main constituents of the plasma membrane and show how are they arranged
with the help of a diagram.
19. Distinguish between –
a. 70S and 80S ribosomes
b. Food vacuole and contractile vacuole
c. Glycoprotein and Lipoprotein
20. What are the different types of plastids? Write function of each type.
.
21. Explain the different phases of interphase of cell cycle.
22. Distinguish between –
a. Co-factor and Co-enzyme
b. Name the group of enzyme that catalyze inter conversion of optical, geometrical or
positional isomers.
23. Differentiate primary metabolites and secondary metabolites. Give an example of each.
24. What are leucoplasts? Whatdo the following leucoplasts store?
(a) Amyloblasts. (b) Elaioplasts. (c) Aleuroplasts.
25. What is a cetromere? Classify the chromosome on the basis of position of centromere with
the help of diagrams.
LA-(5Marks).
26. a)Write the salient feature of double helical model of DNA.
b) Who proposed this model?
27. a) Describe the different structures of protein, give one example from each.
b) Write the type of bond that link aminoacids to form protein.
28. (i) Write the characteristics of Metaphase of Mitosis. Draw a labeled diagram.
(ii) Write four significance of Mitosis.
29. (i) Distinguish anaphase of Mitosis from Anaphase – I of Meiosis.
(ii) What is crossing over? When does it take place?
(iii) What is the significance of meiosis
30. What are the various stages of meiotic prophase-I. Enumerate the chromosomes events during
each stage?
31. What are macromolecules? Give examples. Illustrate the glycoside bond and peptide bond
32. Explain primary cell wall, secondary cell wall and middle lamella.
33. Explain each of the following terms
(a) Synoptonemal complex.
(b) Chiasmata
(c) Quescent stage of cell cycle.
(d) Acrocentric chromosome.
(e) Mesosome.
34. a) Write the structural formula of
a) Adenine b) Uracil c) Adenosine
b) Differentiate between Nucleoside and Nucleotide.
35. a. Why is meiosis called reductional cell division?
b. Name the stage of cell division where the following events occur.
(i) Chromosomes move to spindle equator
(ii) Centromere splits and chromatids separate
(iii) Crossing over between homologous chromosome
(iv) Terminalisation of chiasmata