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The molecule that binds to the active site of an enzyme to start a chemical reaction is the ____.

An ____ is a protein that speeds up chemical reactions.

What is the monomer of a lipid?

A scientific theory differs from a hypothesis in that a theory ___

An ____ is a protein that speeds up chemical reactions.

What happens to an animal cell when it is placed in a hypertonic solution?

Reactions that release energy by breaking down molecules are said to be ___

A significant difference between prokaryotes and eukaryotes is ___

Which type of transport requires a membrane protein (channels and carrier proteins) but does not require additional energy?

A researcher is conducting an experiment to determine if the type of exercise machine impacts weight loss.  There are four groups in the experiment: group one uses a stationary bike for 30 minutes, group two uses an elliptical machine for 30 minutes, group three jogs for 30 minutes, and group four does no exercise throughout the day. All participants eat three meals per day, drink eight cups of water, and got seven hours of sleep each night. At the end of six weeks each participant is weighed and the amount of weight lost is calculated. What is the control group in this experiment?