Photosynthesis and respiration are alike in that they both
require the Sun as a direct source of energy
result in the production of glucose molecules
require specific catalysts
occur within mitochondria
3. require specific catalysts
The chart below lists substances involved in the process of photosynthesis.
Which statement best describes how these substances interact in photosynthesis?
A & B combine to produce C & D.
B & C combine to produce A & D.
C & D combine to produce A & B.
A & C combine to produce B & D.
3. C & D combing to produce A & B
Briefly describe the 3 main functions of a cell membrane.
cell communication
allow things into and out of the cell
protection
Plant cells can synthesize energy-rich organic molecules, and later break them down to extract that energy for performing life processes. These activities require direct interaction between the
chloroplasts and vacuoles
cell walls and ribosomes
chloroplasts and mitochondria
ribosomes and mitochondria
4. chloroplasts and mitochondria
If there is more solute inside a membrane than outside, solute particles will move across the membrane to the _________________ of the cell to achieve equilibrium.
inside
The diagram below represents a cell structure involved in converting energy stored in organic molecules into a form used by animal cells.
The arrows represent the movement of which substances?
carbon dioxide and sugar
oxygen and ATP
ATP and carbon dioxide
oxygen and sugar
3. ATP and carbon dioxide
Which phrase, if placed in box X, would correctly complete the flowchart shown below?
Increased use of starch in root cells
Increased concentration of glucose in leaf cells
Decreased ATP in root cells
Decreased concentration of oxygen in leaf cells
2. Increased concentration of glucose in leaf cells
How is active transport different than diffusion?
uses energy
goes from low concentration to high concetration
The energy used to obtain, transfer, and transport materials within an organism comes directly from
ATP
sunlight
DNA
starch
1. ATP
What is the purpose of a control group in the experiment?
to compare your results
The diagram below represents a series of events that occur in living cells.
Which molecule is indicated by X?
glucose
carbon dioxide
ATP
protein
3. ATP
Maple trees and tulips are classified as autotrophs because they both
produce gametes by the process of mitosis
produce carbon dioxide and water as metabolic wastes
are able to obtain complex organic materials from the environment
are able to synthesize organic molecules from inorganic raw materials
4. are able to synthesize organic molecules from inorganic raw materials
Identify two molecules that are small enough to pass through the cell membrane easily.
gases
water
In the cells of the human body, oxygen molecules are used directly in a process that
releases energy
digests fats
synthesizes carbohydrate molecules
alters the genetic traits of the cell
1. release energy
How do you increase the validity of an experiment?
repeat it multiple times
large sample size
have a control
During the process of cellular respiration, energy is released from
carbon dioxide
water molecules
oxygen atoms
chemical bonds
4. chemical bonds
The cells of some organisms contain both chloroplasts and mitochondria. Which statement describes what would happen in these cells if they were moved from a light environment to a dark one?
The amount of oxygen present would decrease and the amount of carbon dioxide would increase.
The amount of glucose present would increase and ATP would no longer be available.
The amount of carbon dioxide present would decrease and ATP would continue to be synthesized.
The amount of oxygen present would increase and the amount of glucose available would decrease.
a) The amount of oxygen present would decrease and the amount of carbon dioxide would increase.
In order to pass through the cell membrane what must happen to molecules that are too large?
they need to be digested
Organisms contain compounds such as proteins, starches, and fats. The chemical bonds in these compounds can be a source of
amino acids
energy
simple sugars
enzymes
2. energy
What is the difference between an independent variable and a dependent variable?
independent has the variable you are testing and the dependent variable is the data that you measure or take.
The diagram below represents a cell found in some complex organisms. The enlarged section represents an organelle, labeled X, found in this cell.
Describe the function of organelle X and explain how it is important to the survival of the cell. In your answer, be sure to:
identify organelle X
state the process that this organelle performs
Mitochondria
Cellular respiration
The most likely result of completely removing carbon dioxide from the environment of a plant is that sugar production will
continue at the same rate
increase and oxygen production will also increase
increase and oxygen production will stay the same
decrease and eventually stop
2. increase and oxygen production will also increase
water happens to the water in a cell when the cell is emerged in salt water?
the cell shrinks because water moves out
The diagram below represents a cell found in some complex organisms. The enlarged section represents an organelle, labeled X, found in this cell.
Describe the function of organelle X and explain how it is important to the survival of the cell. In your answer, be sure to:
identify the two raw materials that are needed for this process to occur
identify one molecule produced by this organelle and explain why it is important to the organism.
oxygen and glucose
atp,it is energy for the cell and organsim.
The sequence that best illustrates the flow of energy through an ecosystem is
sunlight → plant → wolf → rabbit
plant → sunlight → rabbit → wolf
sunlight → plant → rabbit → wolf
wolf → rabbit → plant → sunlight
3. sunlight → plant → rabbit → wolf