Water
Scientific Method
Carbohydrates & Lipids
Proteins & Nucleic Acids
Enzymes
100
The elements in water
What is Hydrogen and Oxygen?
100
Maria puts plants in different amounts of sunlight and measures the height after 5 days. The independent variable is...
The amount of sunlight
100
The function that carbs and lipids have in common is ...
Energy
100
What element is present in proteins that is not present in lipids or carbohydrates? A. Carbon B. Hydrogen C. Nitrogen D. Phosphorus
C. Nitrogen
100
Which macromolecule is an enzyme?
Protein
200
The attraction of the molecules of one substance to another substance A. Adhesion B. Cohesion C. Universal Solvent D. Density
A. Adhesion
200
Bob measures the size of the jello hole after putting different types of pineapple juice in each. The dependent variable is...
The size of the hole
200
A student consumes an apple. Apples have sugars in them. What type of monomer is in this food? A. Fatty acid B. Amino acid C. Monosaccharide D. Nucleotide
C. Monosaccharide
200
Proteins are built from monomers called...
amino acids
200
What is the relationship between enzymes and activation energy? When enzymes catalyze reactions... A. it increases activation energy B. it decreases activation energy C. it does not affect activation energy D. activation energy changes as do the products
B. it decreases activation energy
300
Which of the following properties of water enable it to move from the roots to the leaves of plants? A. Adhesion B. Cohesion C. Universal Solvent D. Density
B. Cohesion
300
What skill is a scientist using when she listens to the sounds of whales making noise? A. Making hypothesis B. Making observations C. Interpreting data D. Drawing conlusions
B. Making observations
300
The macromolecule that makes up cell membranes is ... A. Carbohydrates B. Lipids C. Proteins D. Nucleic Acids
B. Lipids
300
A researcher discovers a new macromolecule that appears to transmit genetic information. How would you classify the macromolecule? A. carbohydrate B. protein C. lipid D. nucleic acids
D. Nucleic Acids
300
The chemicals with which an enzyme interact are called ___. A. Products B. Substrates C. Active Sites D. Activation Energies
B. Substrates
400
A florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color? A. Specific Heat B. Surface Tension C. Cohesion and Adhesion D. Covalent Bonds
C. Cohesion and Adhesion
400
The group that does not receive the independent variable and is used as a comparison group is called...
Control Group
400
Cellulose is the main component of plant cell walls. Upon examination, it is discovered that cellulose is a polysaccharide. How would you classify this substance? A. Carbohydrate B. Lipid C. Protein D. Nucleic Acid
A. Carbohydrate
400
The enzyme amylase is present in saliva, and helps to digest carbohydrates. Amylase is composed of appoximately 496 amino acids. Based on this information, how would you classify amylase? A. carbohydrate B. lipid C. protein D. nucleic acid
C. protein
400
What happens to the enzymes from the stomach as they move from the stomach at pH 2 to intestines at pH 9? A. it becomes inactive B. it begins to replicate C. its shape changes to take in larger proteins D. its activity increase to digest more proteins
A. it becomes inactive
500
Why does soda explode when placed in the freezer for a long period of time? A. Water cools, sticks to the can, and splits it open B. Water freezes and the space between the molecules expands C. Water freezes and weakens the hydrogen bonds D. Water cools and the surface tension decreases
B. Water freezes and the space between the molecules expands
500
When you decide whether or not the data supports the original hypothesis, you are... A. Drawing conclusions B. Making observations C. Forming a hypothesis D. Asking questions
A. Drawing conclusions
500
Carbohydrates, Lipids, and Proteins are macromolecules that can be broken down and put back together. Which describes these? A. polymers of smaller subunits B. sequence of sugars C. lipids of large molecules D. nucleotides of DNA
A. polymers of smaller subunits
500
What is the relationship between proteins and nucleic acids? A. Nucleic acids use proteins for energy B. Nucleic acids are made of proteins C. Proteins are long chains of nucleic acids D. Nucleic acids contain the genetic info to make proteins
D. Nucleic acids contain the genetic info to make proteins
500
What does a catalyst do? A. slow down reactions B. denature enzymes C. inactivate enzymes D. speed up reactions
D. speed up reactions
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