WorksheetsUnit 1 B Study Guide
Total questions: 25
Worksheet time: 13mins
The graph shows the rates of photosynthesis and cellular respiration of a plant during daylight hours. What can be concluded from the graph?
A. The rate of photosynthesis is higher at dawn than at dusk.
B. The rate of cellular respiration is higher at dusk than at dawn.
C. The rate of photosynthesis is dependent on the amount of direct sunlight available.
An incomplete equation for photosynthesis is given. 6X + 6H₂O + light energy → Y + 6O₂ Which table correctly identifies the missing compounds, X and Y, and their chemical formulas?
X: carbon dioxide (CO₂), Y: hydrogen (H₂)
X: glucose (C₆H₁₂O₆), Y: hydrogen (H₂)
X: glucose (C₆H₁₂O₆), Y: carbon dioxide (CO₂)
X: carbon dioxide (CO₂), Y: glucose (C₆H₁₂O₆)
What is represented by the letters P and Q in the diagram?
Both P and Q represent light-dependent reactions.
Both P and Q represent light-independent reactions.
P represents the light-dependent reactions, and Q represents the light-independent reactions.
P represents the light-independent reactions, and Q represents the light-dependent reactions.
The diagram represents the energy conversion that occurs during photosynthesis. Which terms best complete the diagram at the points labeled 1 and 2?
1: chemical energy; 2: chemical energy
1: light energy; 2: light energy
1: chemical energy; 2: light energy
1: light energy; 2: chemical energy
According to the data, what happened to the plant’s rate of photosynthesis and the resulting impact on oxygen production as the distance from the light source decreased?
The rates of photosynthesis and oxygen production increased.
The rate of photosynthesis decreased, and the rate of oxygen production increased.
The rates of photosynthesis and oxygen production decreased.
The rate of photosynthesis increased, and the rate of oxygen production decreased.
Chlorophyll captures energy from sunlight during photosynthesis. Energy is captured from all of the colors of visible light except one. Which color of light is not captured?
blue
violet
green
red
During the light-dependent reactions of photosynthesis, solar energy splits water molecules, which results in the release of a waste product. Which molecule is released as a waste product?
glucose
hydrogen
oxygen
starch
The graph shows the amount of oxygen absorbed and released by a plant during one day. At which point during the day was the rate of photosynthesis the highest?
A) P
B) Q
C) R
D) S
Which option best describes how the transformation occurs?
A. Light energy converts to sugars through intermediates, such as H2O, CO2, and O2.
B. Light energy converts to sugars through intermediates, such as ATP and NADPH.
C. Light energy converts directly to sugars during the light-dependent reactions.
D. Light energy converts directly to sugars during the Calvin cycle.
Which conclusion can be defended based upon this data?
A. Photosynthesis in pondweed is at its highest rate of productivity at 30°C.
B. Photosynthesis in pondweed is at its highest rate of productivity at 40°C.
C. The rate of photosynthesis increases as the temperature increases.
D. The rate of photosynthesis decreases as the temperature increases.
Which statement correctly demonstrates the relationship between cellular respiration and photosynthesis?
The ATP produced by all cells during cellular respiration can be used by plant cells to produce water molecules during photosynthesis.
The glucose produced by plant cells during photosynthesis can be used by all cells to produce ATP during cellular respiration.
The oxygen produced by all cells during cellular respiration can be used by plant cells to produce glucose during photosynthesis.
The water molecules produced by plant cells during photosynthesis can be used by all cells to produce oxygen during cellular respiration.
Which part of cellular respiration takes place in the cytoplasm?
electron transport chain
glycolysis
Krebs cycle
Which of these is a reactant in cellular respiration in plants?
carbon dioxide
water
glucose
The diagram shows how cellular respiration happens with and without oxygen. What can you learn from the diagram?
A. Aerobic respiration is more efficient because it produces a total of 36 ATP molecules.
B. Aerobic respiration produces only 2 ATP molecules more than fermentation.
C. Fermentation and aerobic respiration both produce the same amount of ATP molecules.
Which factor would have the greatest effect on the cellular respiration rate of an animal?
the intensity of sunlight
the number of chloroplasts
the amount of oxygen available
the amount of water available
In the human body, cellular respiration breaks down sugar molecules after they enter the cell. What results from this process?
growth of bacteria
release of energy
activity of enzymes
production of oxygen
When glucose is converted into lactic acid during cellular respiration in cells, how many ATP molecules are also made by the cell?
0 ATP molecules
2 ATP molecules
16 ATP molecules
38 ATP molecules
After digestion, nutrients such as glucose enter cells. Glucose is broken down during cellular respiration to produce which short-term, high-energy molecule?
A) ATP
B) carbohydrate
C) DNA
D) lipid
What type(s) of cellular respiration produce(s) lactic acid in muscle cells?
aerobic
anaerobic
both aerobic and anaerobic
neither aerobic nor anaerobic
In which location in the cell is the largest quantity of energy produced during cellular respiration?
1
5
7
8
What products of photosynthesis are needed for the process of respiration?
water and oxygen
glucose and oxygen
A scientist studies cultures of four different types of cells undergoing cellular respiration and determines the average number of ATP molecules produced per cell, per molecule of glucose consumed. Another scientist suggests that some of the cultures might be of a bacterium called Clostridium, which is an obligate anaerobe (it cannot undergo aerobic respiration). Which cell(s) could possibly be Clostridium?
A) W only
B) W and Y
C) X and Z
D) W, X, Y, and Z
Humans are typically fueled by aerobic respiration. In which scenario might anaerobic respiration begin instead?
A) after eating a high fat meal
B) after sitting at a desk for 3 hours
C) after running 20 miles
D) after walking across a basketball court
How are the reactions of photosynthesis and cellular respiration interconnected?
The reactions are opposites of one another, each using the products of the other as reactants.
Both reactions require ATP as the energy source, but photosynthesis only happens in plants.
Every organism carries out both processes at the same time but in different parts of the organism.
Animals rely on photosynthesis in plants, and plants rely on respiration as the source for their ATP.
Cells in the body use oxygen (O₂) for cellular respiration. Which is the result of cellular respiration?
ATP is produced and carbon dioxide (CO₂) is released.
ATP is consumed and carbon dioxide (CO₂) is released.
ATP is produced and carbon dioxide (CO₂) is absorbed.
ATP is consumed and carbon dioxide (CO₂) is absorbed.
