Biochemistry test review

Activation energy is: Energy it takes to be active Energy you get from food to be active Amount of energy required to start a reaction Energy that is always moving

Enzymes: Are a type of catalyst Are made of protein Help digest food Are found in living organisms All of the above

a is Active site Product Substrate enzyme

b is Active site Product Substrate enzyme

c is Active site Product Substrate enzyme

d is Active site Product Substrate enzyme

An electron has a charge of: - Neutral +

A single unit used to build larger units would be a: A. polymer B. Monomer C. Macromolecule D. Nucleic Acid

Which type of macromolecule is used for quick energy? Simple carbohydrates Complex carbohydrates Lipids Nucleic Acids Proteins

Energy that does not get used gets stored as which macromolecule? Simple carbohydrates Complex carbohydrates Lipids Nucleic Acids Proteins

Which macromolecule is used for the storage of genetic information? Simple carbohydrates Complex carbohydrates Lipids Nucleic Acids Proteins

Which macromolecule is used for building muscle? Simple carbohydrates Complex carbohydrates Lipids Nucleic Acids Proteins

Nucleotides are the monomers for which polymer? Protein Carbohydrate Lipids Nucleic acids

Amino acids are the monomer for which macromolecule? Protein Nucleic acids Lipids carbohydrates

An acid could have a pH of: 3 7 10 13

A neutral substance would have a pH of: 3 7 10 13

A base would have a pH of: 3 5 7 13

Of the following pH values which would be the strongest acid? 1 5 9 14

Of the following pH values which would be the strongest base? 1 5 9 14

A prediction or statement that is an if….then… statement is a: A. conclusion B. observation C. control D. hypothesis

Which skill are you using when you use your five senses to gather information? A. posing questions B. observing C. developing hypotheses D. designing experiments

In a controlled experiment, a scientist is studying how long it takes parachutes of different sizes to fall to the ground. What is the independent variable? A. the size of the parachute B. the height from which the parachute is dropped C. the size of the object carried by the parachute D. the time it takes for the parachute to drop

In a controlled experiment, a scientist is studying how long it takes parachutes of different sizes to fall to the ground. What is the dependent or manipulated variable? A. the size of the parachute B. the height from which the parachute is dropped C. the size of the object carried by the parachute D. the time it takes for the parachute to drop

A scientist wants to know what effect salt water has on the growth of a plant. He has two groups of plants. One group he gives normal water and the other group he gives salt water. What is the control in this experiment? The salt water The plants receiving normal water The plants receiving salt water The scientist