Plus One Model Exam 2025 Biology Question Paper with answer key

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Attached are +1 Biology Model Exam Question Paper Feb 2025 with answer key in PDF Format can be downloaded easily from the links below.

Some questions from the question paper are:

1. The fusion between one large non-motile female gamete and a small motile male gamete is called_________

2. Characteristic features of Dorsiventral leaf and iso-bilateral leaves are given below.
Arrange them in appropriate columns.
• Mesophyll! is not differentiated.
• Stomata are distributed more at the abaxial epidermis.
• Stomata arc equally distributed on both surfaces.
• Mesophyll is differentiated into Palisade and Spongy layers.

3. Write three differences between Cyclic and Non-cyelic photophosphorylation.

4. Co-faclors are essential for enzyme activity.
a) Name any two co-factors.
b) What happens to the catalytic activity of enzyme when co factor is removed from it ?

5. Synapse is tlie junction between two neurons.
a) Which are the two types of synapse ?
b) How do they differ from each other ?

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