O Level Biology Practice Test 20

Effects of pH on enzymes Test Questions PDF - 20

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The Book Effects of pH on enzymes Test Questions PDF, effects of ph on enzymes quiz answers PDF, download chapter 19-20 to learn online o level biology course. Solve What Are Enzymes Test PDF, effects of ph on enzymes Multiple Choice Questions (MCQ Quiz) for online college degrees. The eBook Effects of pH on enzymes Trivia App Download: effects of ph on enzymes, red blood cells in mammals, water transport in plants, red blood cells and haemoglobin, thyroxin function test prep for ACT test.

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Biology: Effects of pH on enzymes MCQs Quiz PDF Download

MCQ: Amylase becomes denatured at a alkaline pH of

A) 6

B) 7

C) 8

D) 9

MCQ: In mammals, Bone marrow produces

A) red blood cells

B) white blood cells

C) platelets

D) antibodies

MCQ: Root pressure is enhanced as the

A) water is needed in leaves for photosynthesis

B) cells around xylem are low in salts and amino acids

C) more water is available for the plant

D) concentration gradient makes osmosis happen at a greater speed

MCQ: Structural component of hemoglobin is

A) manganese

B) zinc

C) iron

D) chorine

MCQ: Thyroxin is secreted from

A) thiamine deficiency

B) theological inheritance

C) thyroid glands

D) muscles used for breathing

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