CBSE Class 11 Biology Sample Paper Set E Solved

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Read and download CBSE Class 11 Biology Sample Paper Set E Solved designed as per the latest question paper pattern and Class 11 examination guidelines issued by CBSE, NCERT and KVS. The past year Question Papers for Class 11 Biology have been provided with solutions which will help students to assess their performance and find out topics in Biology Class 11 which they need to improve to get better marks in Class 11 exams. After solving these last year papers also refer to solved Sample Papers for Class 11 Biology available on our website to build strong understanding of the subject

Biology Question Paper Class 11

Students can refer to the below Class 11 Biology Question Paper designed to help students understand the pattern of questions that will be asked in Class 11 exams. Please download CBSE Class 11 Biology Sample Paper Set E Solved

Biology Class 11 Question Paper

SECTION A
1 Differentiate the two types of inflorescence.
Ans. i) Cymose and Racemose
ii)Acropetal, basipetal (any 2 points of difference)
 
2 It is said that, when the head of cockroach is cut-off , it will still live for as long as one week. Justify the statement.
 
Ans. Because the brain is represented by supra – oesophageal ganglion which supplies nerves to antennae and compound eyes and this is not present in the head region.
 
3 Which tissue is affected by Myasthenia Gravis? What is the underlying cause?
 
Ans. Neuromuscular junction, autoimmune disorder
 
4 How will hearing get affected if the Eustachian tube gets blocked?
 
Ans. Air pressure on either side of the eardrum will not be maintained and so likely to get damaged.
 
5 What do gray matter and White matter in brain represent?
 
Ans. Unmylemiated cell bodies and dendrites comprise grey matter while myleniated axons makes white matter.
 
SECTION B
6 Experiments were carried out to investigate the action of two enzymes at different pH values. All experiments were carried out at 37 degrees for 20 minutes.
[a] What interpretation can you draw from the graph?
[b] What happens to the pepsin reaction between pH 4 and 5? Why?
 CBSE Class 11 Biology Sample Paper Set E Solved
Ans. a) Normal actions of both enzymes occur,digestion occurs maximum in acidic medium with help of pepsin and amylase work in basic medium.
b) pepsin woks in acidic medium but as acidity decreases HCl production is ffected.
 
7 What is wood botanically? Differentiate between hart and sap wood.
Or
Actinomorphic , Bisexual , hypogynous , five united sepals with valvate aestivation, five free petals with twisted aestivation , five free stamens , anthers dithecous and axile placentation.
 
Ans. Secondary xylem. (Any three)
Heart wood                            Sap wood
i. Dead elements                  i. living tissue
ii. central layer                    ii. peripheral layer
iii. storage of tannin, resin   iii. conduction of water and minerals
iv. darker colour                  iv. lighter colour
v. resistant to decay            v. not resistant
Or
Floral formula- K5C(5)A5G(2)
 
8 The given diagram shows a cell organelle. List its importance for our survival.
 
Ans. Chloroplast-photosynthesis Formation of oxygen.
 
9 You were playing in the playground. After playing you entered the room, but you were not able to see for few seconds. Give reason.
 
Ans. Formation of rhodopsin takes few segments, muscle contraction also takes place
 
10 Draw a neat labeled diagram of reflex arc
 
Ans. Diagram
 
Please click the link below to download CBSE Class 11 Biology Sample Paper Set E Solved.
Biology Question Papers for Class 11
CBSE Class 11 Biology Question Paper Set A
CBSE Class 11 Biology Question Paper Set B
CBSE Class 11 Biology Question Paper Set C
CBSE Class 11 Biology Question Paper Set D
CBSE Class 11 Biology Question Paper Set E
CBSE Class 11 Biology Question Paper Set F
CBSE Class 11 Biology Question Paper Set G
CBSE Class 11 Biology Question Paper Set H
CBSE Class 11 Biology Question Paper Set I
CBSE Class 11 Biology Question Paper Set J
CBSE Class 11 Biology Question Paper Set K Solved
CBSE Class 11 Biology Question Paper Set L Solved
CBSE Class 11 Biology Question Paper Set M
CBSE Class 11 Biology Question Paper Set N Solved
CBSE Class 11 Biology Question Paper Set O Solved
CBSE Class 11 Biology Question Paper Set P Solved
CBSE Class 11 Biology Question Paper Set Q Solved
CBSE Class 11 Biology Question Paper Set R Solved
CBSE Class 11 Biology Question Paper Set S Solved
CBSE Class 11 Biology Question Paper Set T Solved
CBSE Class 11 Biology Sample Paper Set E Solved
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CBSE Class 11 Biology Sample Paper Set E Solved

We hope you liked the above provided CBSE Class 11 Biology Sample Paper Set E Solved. To get an understanding of the type of questions which were asked in previous year exams, it is important for Class 11 students to refer to CBSE Class 11 Biology Sample Paper Set E Solved that we have provided above. Students can download all the Question Papers for Class 11 Biology which were issued in the exams so that you can practise them and solve all types of questions which have been asked till now. By doing all CBSE Class 11 Biology Sample Paper Set E Solved PYP (previous year papers) you will understand the regular questions and MCQ questions for Class 11 Biology which are always asked and learn them so that you can get full marks in those questions. You can download CBSE Class 11 Biology Previous Year Question Papers and Class 11 Biology Sample Papers in PDF. You should attempt all the last year question paper for Class 11 and Class 11 Biology MCQ Test in examination conditions at home and then compare their answers with the solutions provided by our teachers.
 

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