WorksheetsUnits 1-3 Warmup Review (2024)
Total questions: 15
Worksheet time: 9mins
Waxes create a waterproof layer on the outside of some living organisms. To which group of organic molecules do waxes belong? (Unit 1)
Salivary amylase is an enzyme in humans that breaks down starches. What substance would humans have difficulty digesting without this enzyme? (Unit 1)
carbohydrates
Which best summarizes the role of DNA in the production of proteins? (Unit 1)
DNA moves to the cytoplasm to build proteins.
DNA transports amino acids to the ribosomes to make proteins.
DNA contains the instructions used to make proteins.
DNA breaks hydrogen bonds between amino acids.
Which molecules are joined together to make proteins? (Unit 1)
Which best explains why the rate of a biochemical reaction decreases at high temperatures? (Unit 1)
Which is a primary function of a vacuole in a cell? (Unit 2)
Plant cells are able to produce their own food. This process happens in which structure?
What do both prokaryotic and eukaryotic cells contain? (Unit 2)
membrane bound organelles
linear chromosomes
cytoplasm
a nucleus
Which statement best explains how sweating during exercise maintains homeostasis? (Unit 2)
It regulates mineral concentrations in cells.
It regulates body temperature.
It maintains water balance.
It maintains sugar balance in cells.
A student noticed that the freshwater plant, Elodea, produced bubbles when placed in direct light. What could the student most likely conclude? (Unit 3)
Bubbles of carbon dioxide were produced as a result of photosynthesis.
Bubbles of oxygen were produced as a result of photosynthesis.
Bubbles of carbon dioxide were produced as a result of cellular respiration.
Bubbles of oxygen were produced as a result of cellular respiration.
Which word equation best represents the process of cellular respiration? (Unit 3)
carbon dioxide + glucose → oxygen + water
carbon dioxide + water → glucose + oxygen
glucose + oxygen → carbon dioxide + water
oxygen + water → carbon dioxide + glucose
A contractile vacuole helps protists eliminate excess liquid. This is a “pumping" process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process? (Unit 3)
How does the body of a runner keep up with the demand for energy when cellular oxygen levels are low? (Unit 3)
through anaerobic respiration in the cytoplasm
through energy production in the mitochondria
through ATP produced directly from sunlight
through aerobic respiration in the plasma membrane
Select two (2) statements that describe enzymes (Unit 1)
Enzymes are biological catalysts
Enzymes can only be used once in a reaction
Enzymes increase the amount of energy necessary to initiate a reaction
Enzymes are substrate specific
Which characteristic distinguishes bacteria from eukaryotic cells?
the absence of a plasma membrane
The absence of ribosomes
The presence of a cell wall
the presence of circular DNA
