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WorksheetsUnit 1 & 2 review
Total questions: 18
Worksheet time: 26mins
Henry wants to see how different liquids affect the growth of plants. He uses soda to water a fern, juice to water a cactus, and milk to water a rose. He observes the plants' growth for one week and then records his results. How can we make this experiment valid?
Use more plants
Put some plants in the dark and some in the sunlight
Use only juice to water the plants
Use the same kind of plant
Jessica has a structural model of a macromolecule. The model contains Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus. What kind of macromolecule does this model represent?
Carbohydrates
Lipids
Nucleic Acids
Proteins
Which of the following pictures is a protein?
How do enzymes speed up reactions?
They lower the activation energy
They raise the activation energy
Enzymes don't speed up reactions
Enzymes are proteins and proteins give us energy
Why would scientists want to replicate an experiment?
To confirm the results
To see if there is a less expensive way
Just for fun
To make the experiment less reliable
WHich enzyme has an optimum pH of 3?
Both enzymes work best at pH of 3
Trypsin
Pepsin
Neither enzyme works best at pH of 3
Which macromolecule is used for long-term energy storage?
Carbohydrates
Proteins
Lipids
Nucleic acids
Joshua has a big race tomorrow. His friend tells him to eat a carbohydrate-based meal the night before. Should he listen to his friend?
Yes, carbohydrates help build muscle.
No, he should eat a protein-based meal.
Yes, carbohydrates will give Joshua energy.
No, he should eat a lipid-based meal.
DNA and RNA are examples of what macromolecule?
Nucleic acids
Lipids
Proteins
Carbohydrates
What is the monomer of carbohydrates?
Nucleotides
Triglycerides
Amino acids
Monosaccharides
Which of the following macromolecules is correctly paired with their monomer?
Carbohydrates: amino acids
Lipids: monosaccharides
Proteins: amino acids
Nucleic acid: triglycerides
A macromolecule is found to have Carbon, Hydrogen, and Oxygen atoms in a 1:2:1 ratio. What type of macromolecule is this?
Lipids
Proteins
Carbohydrates
Nucleic acids
This picture shows a Western Yellowjacket in great detail. What type of microscope was used to take this image?
Dissecting microscope
Compound light microscope
Transmission electron microscope
Scanning electron microscope
A scientist wants to take a picture of the textured surface of some grains of sand. What type of microscope should they use?
Dissecting microscope
Compound light microscope
Scanning electron mciroscope
Transmission electron microscope
What type of macromolecule is pictured here?
Lipids
Carbohydrates
Nucleic acids
Proteins
Which of the following is a function of Proteins?
Cell transport
Catalyzing reactions (enzymes)
Structural support
All of the above
How many independent variables should an experiment have?
1
2
3
It doesn't matter how many independent variables an experiment has.
Which of these macromolecules is used for short-term or fast energy?
