WorksheetsUnit 3 Cells Test: Part ll REVIEW
Total questions: 27
Worksheet time: 34mins
Which characteristic is shared by both humans and plants?
Both perform photosynthesis
Both have a nervous system
Both are composed of cells
None of the above
Which of the following is true for both a nerve cell and a blood cell?
both a and b
require energy to function
use sunlight to produce energy
none of the above
Which process allows organisms to produce energy in environments where oxygen is absent?
homeostasis
anaerobic respiration
protein synthesis
photosynthesis
What process explains the movement of oxygen into a cell and carbon dioxide out of a cell as shown in the following drawing?
Chemosynthesis
Photosynthesis
Anaerobic cellular respiration
Aerobic cellular respiration
Which process takes place inside the chloroplast of plant cells?
Respiration
Photosynthesis
Fermentation
Transpiration
During a chemical reaction, which of the following is responsible for the release of energy?
Breaking of chemical bonds
Formation of chemical bonds
Transformation of oxygen into nitrogen
Transformation of nitrogen into oxygen
What does the Calorie count on a food label represent?
The amount of energy the food can supply when metabolized
The protein content of the food
The minerals present in the food
The taste quality of the food
A scientist observes a cell with numerous mitochondria. What does this suggest about the cell's activity?
It stores matter
It produces fats
It builds proteins
It requires energy
Which process is necessary for chemical energy to be released or absorbed in a system?
Light must be reflected
Atoms must rearrange to form new bonds
Proteins must be synthesized
Water must evaporate
When ATP is produced in cells, what type of energy is commonly released along with it?
Thermal energy
Light energy
Sound energy
Potential energy
Which molecule is essential for cells to efficiently produce energy from glucose?
oxygen
carbon dioxide
water
carbohydrates
What are the two main processes organisms use to obtain energy from food?
aerobic cellular respiration and anaerobic cell respiration
Digestion and absorption; digestion breaks down food, absorption takes in nutrients
Fermentation and transpiration; fermentation produces energy without oxygen, transpiration moves water in plants
Osmosis and diffusion; osmosis moves water, diffusion moves solutes
During cellular respiration, which process is responsible for the largest yield of ATP molecules?
Fermentation pathway
Glycolysis in cytoplasm
Krebs cycle in matrix
Electron transport chain
Oxygen is required for the electron transport chain in aerobic respiration because:
It acts as the final electron acceptor, allowing the chain to continue and produce ATP.
It provides energy directly to the electron transport chain.
It breaks down glucose during the process.
It is used to transport electrons between protein complexes.
In photosynthesis, which set of reactions fixes carbon into sugars?
Krebs cycle in matrix
Calvin cycle in stroma
Glycolysis in cytosol
Light reactions in thylakoids
NADH and FADH2 play an important role in cellular respiration by:
Transferring electrons to the electron transport chain to produce ATP
Breaking down glucose directly into ATP
Acting as enzymes in glycolysis
Storing energy as fat molecules
Compare the locations of the light reactions and the Calvin cycle within the chloroplast.
The light reactions occur in the thylakoid membranes, while the Calvin cycle takes place in the stroma.
Both the light reactions and the Calvin cycle occur in the thylakoid membranes.
The light reactions occur in the stroma, while the Calvin cycle takes place in the thylakoid membranes.
Both the light reactions and the Calvin cycle occur in the stroma.
Temperature and light intensity typically affect the rate of photosynthesis in which of the following ways?
They both generally increase the rate of photosynthesis up to an optimal point.
They both decrease the rate of photosynthesis as they increase.
Temperature increases the rate, while light intensity decreases it.
Neither temperature nor light intensity affects the rate of photosynthesis.
One major difference between aerobic respiration and anaerobic respiration in terms of ATP yield is that:
Aerobic respiration produces much more ATP than anaerobic respiration.
Anaerobic respiration produces more ATP than aerobic respiration.
Both produce the same amount of ATP.
Aerobic respiration does not produce any ATP.
Which structure inside the mitochondrion houses the Krebs cycle enzymes?
Intermembrane space region
Cristae membrane folds
Matrix fluid compartment
Outer membrane surface
What happens to water during the light reactions of photosynthesis?
Reduced into glucose
Split to provide electrons
Frozen to store energy
Oxidized to carbon dioxide
Which factor most directly increases oxygen output from a plant?
Higher soil nitrogen levels
Thicker cuticle tissues
Greater light intensity
Lower cellular respiration
Quantitatively, about how many ATP can be produced per glucose during aerobic respiration?
About 2 to 4 ATP
About 10 to 12 ATP
About 18 to 20 ATP
About 30 to 32 ATP
Identify the electron carriers produced in the light reactions that power the Calvin cycle.
ATP and NADPH
ADP and FADH2
NADH and CO2
RuBP and oxygen
Cellular respiration in plants uses which product of photosynthesis?
Oxygen
Carbon dioxide
Glucose
Water
Which statement correctly contrasts chloroplasts and mitochondria?
Mitochondria fix carbon; chloroplasts oxidize glucose
Chloroplasts make glucose; mitochondria make ATP
Both perform photosynthesis
Both store genetic code
Which of the following outlines a valid investigation to test how light color affects the rate of photosynthesis in aquatic plants, including variables and expected outcomes?
Place aquatic plants under different colored lights, measure oxygen production, control temperature and plant type, expect higher photosynthesis under optimal light color.
Place aquatic plants under sunlight only, measure leaf size, control water pH, expect no change in photosynthesis rate.
Use terrestrial plants under colored lights, measure soil moisture, control humidity, expect increased photosynthesis in all colors.
Place aquatic plants in darkness, measure root growth, control light intensity, expect increased photosynthesis in darkness.
