The correct response is:
Chlorophyll breaks down because there is less sunlight.
As chlorophyll breaks down, other pigments in the leaves, such as anthocyanins, become more visible, leading to the red coloration in the fall.
Why are leaves red in the fall?(1 point)
Responses
Chlorophyll reflects green light in the fall.
Chlorophyll reflects green light in the fall.
Chlorophyll breaks down because there is less sunlight.
Chlorophyll breaks down because there is less sunlight.
Chlorophyll absorbs red in the fall, rather than green.
Chlorophyll absorbs red in the fall, rather than green.
Mitochondria breaks down because there is less sunlight.
11 answers
Which statement is true?(1 point)
Responses
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the stroma.
Responses
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the stroma.
The correct statement is:
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
The Calvin cycle takes place in the stroma of the chloroplasts and does not directly require light to occur, although it depends on the products of the light-dependent reactions.
The original energy for photosynthesis to begin comes from:(1 point)
Responses
carbon dioxide molecules
carbon dioxide molecules
light
light
water molecules
water molecules
ATP
Responses
carbon dioxide molecules
carbon dioxide molecules
light
light
water molecules
water molecules
ATP
The correct response is:
light
The original energy for photosynthesis comes from sunlight, which is captured by chlorophyll and used to drive the process of converting carbon dioxide and water into glucose and oxygen.
Which equation best models cellular respiration?(1 point)
Responses
C6H12O6 + 6O2+ 6CO2→6H2O +Energy
C 6 H 12 O 6 + 6O 2 + 6CO 2 →6H 2 O +Energy
C6H12O6 + 6O2→6H2O + 6CO2+Energy
C 6 H 12 O 6 + 6O 2 →6H 2 O + 6CO 2 +Energy
6H2O + 6CO2+→C6H12O6 + 6O2+Energy
6H 2 O + 6CO 2 +→C 6 H 12 O 6 + 6O 2 +Energy
6H2O + 6CO2 +Energy → C6H12O6 + 6O2
Responses
C6H12O6 + 6O2+ 6CO2→6H2O +Energy
C 6 H 12 O 6 + 6O 2 + 6CO 2 →6H 2 O +Energy
C6H12O6 + 6O2→6H2O + 6CO2+Energy
C 6 H 12 O 6 + 6O 2 →6H 2 O + 6CO 2 +Energy
6H2O + 6CO2+→C6H12O6 + 6O2+Energy
6H 2 O + 6CO 2 +→C 6 H 12 O 6 + 6O 2 +Energy
6H2O + 6CO2 +Energy → C6H12O6 + 6O2
The correct equation that best models cellular respiration is:
C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy
This equation represents the process of cellular respiration, where glucose (C6H12O6) and oxygen (O2) are converted into water (H2O), carbon dioxide (CO2), and energy (typically in the form of ATP).
If only given formulas to examine, how could you identify the formula that would represent anaerobic respiration?(1 point)
Responses
Look for ATP energy as a product
Look for ATP energy as a product
Look for glucose as a product
Look for glucose as a product
Look for glucose as a reactant
Look for glucose as a reactant
Look for lactic acid as a product
Responses
Look for ATP energy as a product
Look for ATP energy as a product
Look for glucose as a product
Look for glucose as a product
Look for glucose as a reactant
Look for glucose as a reactant
Look for lactic acid as a product
The correct response is:
Look for lactic acid as a product.
Anaerobic respiration, such as lactic acid fermentation, typically produces lactic acid (in animals) or ethanol (in yeast) as a product, in addition to ATP. If you see lactic acid in the formula, it indicates that the process is anaerobic.
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?(1 point)
Responses
Only species Y is anaerobic
Only species Y is anaerobic
Both species X and Y are anaerobic
Both species X and Y are anaerobic
Only species Y is aerobic
Only species Y is aerobic
Both species X and Y are aerobic
Responses
Only species Y is anaerobic
Only species Y is anaerobic
Both species X and Y are anaerobic
Both species X and Y are anaerobic
Only species Y is aerobic
Only species Y is aerobic
Both species X and Y are aerobic
The correct conclusion is:
Only species Y is anaerobic.
Species X produces CO2 and H2O, which indicates that it is undergoing aerobic respiration (where oxygen is required), while species Y produces ethyl alcohol and CO2, which is characteristic of anaerobic fermentation (specifically alcoholic fermentation). Therefore, only species Y is anaerobic.
7 answers