Enzymes and Movement of Substances Quiz
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What are lipids (fats) broken down into?
A. Simple sugars
B. Amino acids
C. Glycerol and fatty acids
D. Starch
Through what type of membrane does water move during osmosis?
A. Impermeable membrane
B. Semi-permeable membrane
C. Permeable membrane
D. Non-permeable membrane
What are the products in the respiration equation?
A. Oxygen and Glucose
B. Water and Glucose
C. Carbon Dioxide, Water, and Energy
D. Carbon Dioxide and Oxygen
What is the role of the active site in an enzyme?
A. It binds to the substrate.
B. It releases the products.
C. It changes the shape of the enzyme.
D. It deactivates the enzyme.
What is diffusion?
A. The movement of solids from high to low concentration
B. The movement of liquids and gases from an area of high concentration to an area of low concentration
C. The movement of gases from low to high concentration
D. The movement of liquids from low to high concentration
What is formed when the enzyme and substrate combine?
A. Enzyme-substrate complex
B. Enzyme-product complex
C. Enzyme-inhibitor complex
D. Enzyme-cofactor complex
Which process is responsible for the movement of water in and out of our cells?
A. Diffusion
B. Active transport
C. Osmosis
D. Filtration
What is active transport?
A. The movement of substances along the concentration gradient (from high to low concentration)
B. The movement of substances against the concentration gradient (from low to high concentration)
C. The movement of substances without the need for energy
D. The movement of substances through osmosis
What is the water concentration in a concentrated solute solution?
A. High water concentration
B. Low water concentration
C. Medium water concentration
D. No water concentration
At what temperature is enzyme activity in a human at its best/highest?
A. 25°C
B. 37°C
C. 50°C
D. 70°C
Which enzyme breaks down carbohydrates into simple sugars?
A. Protease
B. Lipase
C. Carbohydrase
D. Amylase
What are proteins broken down into by protease?
A. Simple sugars
B. Glycerol
C. Fatty acids
D. Amino acids
What must the shape of the substrate match in order to fit into the enzyme?
A. The shape of the enzyme’s active site
B. The shape of the enzyme’s surface
C. The shape of the enzyme’s core
D. The shape of the enzyme’s tail
Why are enzymes specific in their action?
A. Because they can bind to any substrate.
B. Because the active site is a specific shape.
C. Because they are made of proteins.
D. Because they are found in all cells.
What is the term used to describe the mechanism where the substrate fits into the enzyme’s active site?
A. Lock and key mechanism
B. Induced fit model
C. Substrate inhibition
D. Competitive inhibition