REGITROY

Only available on StudyMode
  • Download(s) : 26
  • Published : October 18, 2013
Open Document
Text Preview
Sample Paper- 2013
Sub: Biology
Class-XI

Time: 3Hrs.M.M.70
General Instructions:-
a. All Questions are compulsory.
b. The question paper consists of 30 questions divided into four sections A, B, C and D. The section A contains 1-8 questions of 1 mark each, the section B consists of 9-18 question of 2 marks each, the section C has 19-27 question of 3 marks each and section D includes 28-30 question of 5 marks each. c. There is no overall choice. However, internal choice has been provided in one question of 2 marks each, in one question of 3 marks each and in all the three questions of 5 marks each. You are to attempt only one of the two alternatives in case of an internal choice question. d. Wherever necessary, the diagrams drawn should be neat, bold and properly labeled. Questions

Section A
01.What are the family of cat and dog?
02.Give the location of casparian strip and explain its role in the water movement. 03.What is inulin? Is it a homopolymer or heteropolymer?
04.Give name of leucocytes responsible for inflammatory reactions and associated with allergic reactions. 05.Give the name of two members of ascomycetes, which are considered delicacies. 06.What is the role-played by luteinizing hormones in males and females respectively? 07. Observe the diagram and answer the following;

a. Are these types of guard cells found in monocots or dicots? b. Which structure of guard cells plays an important role in the opening and closing of stomata? 08.In which gymnosperm plants will you look for mycorrhiza and corolloid roots?

Section - B
09.The leucoplasts are colourless plastids of varied shapes and sizes with stored nutrients. Give two type of leucoplast with stored food in it. 10.What is the difference between a nucleotide and nucleoside? Give one examples of each. 11.Pyruvic acid is the end product of glycolysis. What are the three metabolic fates of pyruvic acid under aerobic and anaerobic conditions? 12.What is...
tracking img