Why is CBSE Class 12 Biology Lab Manual 2026 Important?

The practicals for class 12 are a crucial part of the CBSE Class 12 syllabus. The CBSE Class 12 Biology lab manual 2026 includes the details of what experiments the students need to conduct, the detailed procedure, observations, diagrams, and the required apparatus.

These experiments provide the students with an idea of how things work practically, whether it is the plant kingdom or the animal kingdom. Helping the students to learn critical thinking and analysing results, the CBSE Biology lab manual for class 12th provides a road map to follow throughout the experiments.

CBSE Class 12 Biology Lab Manual 2026 PDF Link

The students can download the CBSE Class 12 Biology lab manual 2026 PDF from the table given below. There are a total of 25 exercises that the students need to complete throughout their academic year.

Steps to Download CBSE Class 12 Biology Lab Manual 2026

To download the CBSE 12th Biology laboratory manual for 2026, students can follow the steps mentioned below.

• The first step is to visit the official website of NCERT, at ncert.nic.in.

• Locate the ‘publication’ section on the home page at the top of the menu bar.

• There will be a drop-down menu, where out of all the options, students need to click on the ‘Laboratory Manuals’ option.

• Click on the option and click on Class XII.

• The lab manuals for the biology subject will be available at the click.

• Click on each exercise to download the PDF.

• Print the PDF for future reference.

Example of Experiments for CBSE 12th Biology

Procedure

• Familiarise yourself with the terms to describe the reproductive parts of flowers given in annexures of Exercise No. 11 of Laboratory Manual: Biology (Class XI) and at the end of this experiment.

• Observe the flower with the naked eye, hand lens or under a dissecting microscope. Study their reproductive parts and count the number of stamens, and record their cohesive and adhesive features.

• Cut L.S. of the flower and place it on a slide to observe the following characters:

• (a) Placement of anthers

• (b) Position of the ovary: epigynous/perigynous/hypogynous.

• Mount one stamen on a slide and study the following characters:

• (a) Attachment of filament to anther

• (b) Dehiscence pattern of the anther lobes for the discharge of pollen.

• (v) Cut the T.S. of another lobe to observe the number of pollen sacs.

• Mount the pistil on a slide and study the style, stigma and ovary. Record the number of stigmas and the nature of the pistil.

• Cut the T.S. of the ovary, mount it on a slide and observe

• (a) Number of locules in the ovary

• (b) Type of placentation

• (c) Number of ovules per locule

• Draw labelled figures of your preparation and observations.