IGCSE A Level Biology Practice Test 28

Biology Online Multiple Choice Questions (MCQs) PDF Download - 28

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The Biology Online MCQ with Answers PDF (Biology Online Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 1-28 to prepare IGCSE A Level Biology Practice Tests. Study Biological Molecules Test PDF, Biology Online Multiple Choice Questions (MCQ Quiz) for colleges that offer online classes. The Biology Online MCQ Quiz App Download: Free certification app for biology online, infectious and non-infectious diseases, what are enzymes, tobacco smoke, tar and nicotine, plant cells test prep to study IGCSE certificate courses.

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Biology Online MCQ Quiz with Answers PDF Download: Test 28

MCQ 136:

The addition of water in the carbohydrate is the reverse of condensation and is known as

polymerization
hydrolysis
titration
disintegration

MCQ 137:

The incubation period of Vibrio cholera has a duration of

few hours to four days
2 hours to five days
2 hours to fifteen days
30 minutes

MCQ 138:

Nature of most intestinal enzymes is

acidic
alkaline
neutral
all of others

MCQ 139:

The process in which a chemical substance extends to an adequate concentration, at a certain site in the body and can produce an unwanted effect in the body is termed as

poisoning
toxicity
sensitivity
adverse effect

MCQ 140:

Vacuoles of plant cells are

permanent
semi-permanent
temporary
all of others

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