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WorksheetsKeystone Review Unit 1-3
Total questions: 19
Worksheet time: 14mins
Which statement best explains why these cells have structural differences?
The cells have different functions.
The cells evolved in different organisms.
One of the cells develops into the other type of cell.
One of the cells is more primitive than the other cell.
Which of the following is essential to proper functioning of
all prokaryotic and eukaryotic organisms? (BIO.A.1.1.1 2019)
O2
CO2
ATP
NaCl
Which statement best compares eukaryotic cells and prokaryotic cells? (BIO.A.1.2.1 2019
Eukaryotic cells are smaller than prokaryotic cells.
Prokaryotic cells are more complex than eukaryotic cells.
Prokaryotic cells contain a distinct central organelle, and eukaryotic cells do not.
Eukaryotic cells contain membrane-bound organelles, and prokaryotic cells do not.
Lungs and capillaries both have porous linings that allow certain substances to move into or out of the structures. Which function do these porous linings most likely serve in living organisms? (BIO.A.1.2.2 2019
heat release
gas exchange
carbohydrate absorption
osmotic pressure regulation
Four students classified the main energy conversions that occur during photosynthesis and cellular respiration. Which student best classified the energy conversions that occur in the two processes.
Student 1
Student 2
Student 3
Student 4
Which statement best describes how channel and carrier proteins in the plasma membrane are similar?
Both allow for the flow of molecules into and out of a cell.
Both directly connect the membrane to the nucleus of a cell.
Both use energy to continuously move water molecules out of a cell.
Both cause the phospholipid bilayer to form a rigid membrane for a cell.
Cells are largely made of organic compounds that contain carbon. Which property of the
carbon atom makes it an essential component of organic compounds?
Carbon is a nonmetal
Carbon oxidizes to carbon dioxide
Carbon is solid at room temperature.
Carbon can form four covalent bonds
The graph shows how the activity of an enzyme changes at different temperatures.
Which statement best describes what happens to the enzyme when the temperature
of the reaction increases to 63°C?
The enzyme is used up and the reaction stops
The enzyme begins to decrease the rate of the reaction
The enzyme continues to increase the rate of the reaction
The enzyme changes shape and can no longer speed up the reaction
Water molecules have positive and negative charges which gives it unique properties. What icharacteristic is shown in the image?
Polarity
Hydrogen Bonds
Cohesion
Adhesion
How does the structure of this enzyme help with its function?
Sir Isaac Newton’s study of gravity resulted in a scientific _____ since it described a pattern in nature with related observations.
theory
hypothesis
law
A _________ is used to see the effect of the test variable on the outcome variable.
control group
variable group
constant
Which choice is an independent variable?
measuring the distance a student can jump in meters
counting the number of ants in population
measuring the lengths of students' hair
providing different levels of sunlight to plants in an experiment
