★ Enzymes & Metabolism HL Quiz
How does pH affect enzyme action?
A. Enzymes denature at neutral pH
B. Enzymes are not affected by pH
C. Enzymes work best at all pH levels
D. Each enzyme has an optimum pH for activity
Select your answer:
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Phlebotomy › ViewWhy is it important to mix anticoagulated blood tubes immediately after collection?
A. To prevent the blood from clotting
B. To ensure the anticoagulant is evenly distributed throughout the sample
C. To cool down the sample to room temperature
D. To separate the plasma from the cells
Integumentary System › View
What material is the epidermis mostly made of?
A. adipose tissue
B. dead skin cells
C. water
D. oil glands and hair follicles