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White blood cells engulf foreign particles by means of

Which of the following are consistent with facilitated diffusion? (1) movement is against a concentration gradient(2) movement is with a concentration gradient(3) involves a carrier molecule(4) involves cotransport(5) involves counter transport(6) exhibits competition and saturation

Chemical energy

Enzymes are proteins that increase the rate of chemical reactions by

Which of the following is a carbohydrate?

The movement of a substance from an area of high concentration to an area of less concentration is called

Intermolecular forces

Chemical reactions with the property of being able to proceed from reactants to products and from products to reactants are called

Which transport process requires a carrier molecule but does not use cellular energy?

Nucleoli