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Biology Online MCQs: Questions and Answers PDF Download
The addition of water in the carbohydrate is the reverse of condensation and is known as
- polymerization
- hydrolysis
- titration
- disintegration
Biological catalysts that speed up reactions by lowering the activation energy is called
- enzyme
- carrier proteins
- linker protein
- catalyst
People who are suffering from Emphysema,
- have very low rate of breathing
- manage to oxygenate the blood in lungs
- their right side of the heart increases
- their left side of the heart increases
The Tunica media near the heart does not include
- more muscles
- fewer elastic fibers
- more elastic fibers
- no collagen
Cell division and cell elongation is affected by
- gibberellins
- auxins
- abscisic acid
- cytokinins
IGCSE A Level Biology Practice Tests
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