CBSE Class 11 Biology Sample Paper Set 07 Solved

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Official CBSE Exam Papers for Class 11 Biology

Access comprehensive previous year question papers for Class 11 Biology using the CBSE Class 11 Biology Sample Paper Set 07 Solved. Designed to align with the 2026-27 CBSE academic guidelines, these solved papers help students assess their exam readiness and understand official marking schemes.

Solved Previous Year Papers for Biology

View or download the dedicated CBSE Class 11 Biology Sample Paper Set 07 Solved resource below. Engaging with these previous year papers under timed conditions ensures continuous academic progress and mastery of the 2026-27 exam format.

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.

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Past Exam Papers & Solutions for Class 11 Biology

Previous Year Question Papers: Class 11 Biology

Explore downloadable past papers for Class 11 Biology. Utilizing the CBSE Class 11 Biology Sample Paper Set 07 Solved ensures complete preparedness by offering clear insights into historical question styles and marking expectations.

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Practicing past question sets under timed home conditions helps refine pacing and time management skills, ensuring you complete your Biology examination comfortably within the official duration.

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FAQs

Where can I download the official PDF for CBSE Class 11 Biology Sample Paper Set 07 Solved?

The CBSE Class 11 Biology Sample Paper Set 07 Solved is available for download on StudiesToday.com. It includes complete set with all sections so that Class 11 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 11 Biology Sample Paper Set 07 Solved based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 11 Biology Sample Paper Set 07 Solved are prepared by subject matter experts as per official marking scheme. Class 11 students will understand the structure of answers and 'step-marks' methodology Biology.

How does solving CBSE Class 11 Biology Sample Paper Set 07 Solved help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 11 Biology Sample Paper Set 07 Solved is important to understand repeat themes and question difficulty levels of Biology. It helps Class 11 students to test their time management skills too.

Can I access CBSE Class 11 Biology Sample Paper Set 07 Solved in different languages?

Yes, where applicable, CBSE Class 11 Biology Sample Paper Set 07 Solved is available in both English and Hindi mediums. All students from Class 11 can access Biology study material in their preferred language.

Is there a charge to download the CBSE Class 11 Biology solved papers?

No, all previous year question papers on StudiesToday, including CBSE Class 11 Biology Sample Paper Set 07 Solved, are provided free of charge in mobile-friendly PDF.