CBSE Class XI : Biology
Exam Paper (Bihar)
- All Question are compulsory.
- There is no negative marking for any wrong answer.
- Questions are in two sections.
SECTION-I [Objective Questions]
1. Protista consists of
(a) Heterotrophic organism (b) Photoautotroph’s (c)
Chemoautotroph’s (d) All of the above
2. Contractile vacuole does not occur in
(a) Slime moulds (b) sporozoa (c) Sarcodina (c) Zooflagellata
3. Lateral roots developed from
(a) Epidermis (b) Cortex (c) Endodermis (d) Pericles.
4. Bull Frog of India is
(a) Rana Tigerina (b) Rana Esculent (c) Rana sylvatica (d) All
5. Ligaments connect
(a) Muscle to Muscle (b) Muscle to skin (c) Bone to Bone (d)
Muscle to bone
6. Ribosome’s are synthesized in
(a) Nucleopasm (b) Nucleolus (b) Golgi apparatus (d)
7. Lactose is
(a) Fructose + Fructose (b) Glucose +| Glucose
(c) Glucose + Fructose (d) Glucose + Galaxies
8. Ph. of gastric juice is
(a) 15 “ 30 (b) 5.0 – 6.8 (c) 7.0 – 9.0 (d) 6.0 – 8.0
9. Bile are
(a) Steroids (b) Carbohydrate (c) Protein (d) Vitamins
10. Number of Milk – teeth in an infant is
(a) 12 (b) 20 (c) 32 (d) 46
Instructions : Q. No. 11 to 15 In the following questions there are
two statements. Statement- I follows Statements-II. You have to go through these
statements and mark your answer from the given questions.
(a) If both the statement are true & statement II is the correct explanation
of Statement – I.
(b)If both the statement are true & statement- II is not correct explanation of
statement – I.
(c) If statement – I is true and statement – II is false.
(d) If statement – I is false & statement – II is true.
11. Statement I “The process of reproduction does not
suffer if one ovary is removed.
Statement II “The other ovary enlarge to take over the function of
12. Statement I “Entomophilies plants produce less
pollen when compared to anemone-phallus plants.
Statement II “The wastage of pollen is reduced to minimum
Entomophilies plantsbec abuse of the directional pollination.
13. Statement I “ Dichogamy refers to maturation of
male & female sex – organ at different teems.
Statement II “This is a safeguard against cross-Pollination.
14. Statement I “In mutualism both the individuals
Statement II “Both individual are benefitted by the association but
their relationship are not obligatory.
15. Statement I “Phloem is the main conducting
Statement II “Phloem does the function of conduction of water.
Instructions : Question No. 16 to 18 In the following question there
may be more than one correct answer. You have to mark all the correct options.
16. Mosses have
(a) Radial symmetry (b) Scales absents (c) Sex organ developed
capitally (d) None of these.
Answers: (a, b, c)
17. Pneumonia is caused by
(a) Trichophuyton (b) Epidermophyton
(c) Streptococcus pneumonia (d) Hemphill’s influence.
Answers: (a, c)
18. Tuberous roots are used for vegetative propagation
ion in following plants.
(a) Asparagus (b) Dahlia (c) Pea (d) Ground nut
Answers: (a, c)
Instructions : Question No. 19 to 22 In the following questions there
are two columns the columns – I contains 4 questions, you have to watch the
||(a) Camplylo trophy
||(b) Columnar all
||(c) Sieve cells
|22- Elongated Nucleus
Answers: 19. (d) 20. (a) 21. (c) 22. (b)
Instructions : Question No. 23 to 25 In the following questions
followed by a paragraph, you have to go through the paragraphs & them answer the
given questions from given choices. Balance diet, personal hygiene & regular exercise are very important in
maintaining good health. Yoga has been practiced since time immemorial to
achieve physical & mental health. Awareness about disease & their effect on
different body functions. Vaccination against infection disease,proper disposal
of waste, control of vector & maintenance of hygienic food & water resources are
necessary for achieving good health.
23. Personal hygiene stands for
(a) Balance diet (b) taking exercise
(c) To keep one self neat and clean. (d) To maintain good health.
24. Control of vector can be achieved by
(b) take regular exercise
(c) By proper disposal of
(d) Waste & taking contaminated food daises.
(d) To make aware about disease.
25. Balance diet in one which contains :
(a) high protein
(b) enriched with mineral
(c) Contains all the nutrients in proportion.
(d) Can be digested easily.
SECTION-II [Non-Objective Questions]
Short Answer questions:
Instruction : Q. No. 1 to 11 are Short Answer Type Questions. Every
question is of 2 marks each.
- Enemata 5 features of Kingdome Monera ?
- Describe five feature of Kingdome Fungi ?
- Define radia symmetry.
- Define viripary ?
- Who is father of Microbiology ?
- What is Micrococcus ?
- Define algae ?
- What are diatoms
- What are buds ? Enumerate their types;.
- Write a note on blood platelets
- Distinguish between Tender & ligaments ?
Instructions : Question No. 12 to 15 are long water type carrying 05
- List the important function of blood plasma ?
- Sketch the reproductive system of Cockroach and level in properly.
- List ten important function of cell membrane.
Describe ultra structure & function of Nucleus.
- How many total ATP Molecule are generated from one Mole glucose in
glycol tic Pathway.
Describe Krebs Cycle ?