Photosynthesis Cell Respiration Test Honors Bio
Study the photosynthesis model above. What is a correct assumption about the inputs and outputs of photosynthesis?
sunlight is the source of energy; plant sugars are the chemical energy produced
Which substance from the light-dependent reactions is a source of energy for the light-independent reactions of photosynthesis?
NADPH
All BUT one product of the light dependent reaction of photosynthesis is utilized in the light independent reaction. That is
O2
Which statement correctly describes the diagram?
The products of respiration can be used by plants for photosynthesis.
Given two areas with equal sunlight and available water. Area I has a high amount of atmospheric carbon dioxide while Area II has a low amount of atmospheric carbon dioxide. How does the rate of photosynthesis in Area I compare to that in Area II?
The rate of photosynthesis increases with an increase in carbon dioixde.
During the winter time, the total number of hours of sunlight decreases. What effect would this have on the process of photosynthesis?
The rate of photosynthesis would decrease and less glucose would be produced.
Photosynthesis is the process plants use to convert sunlight into chemical energy. The process of photosynthesis can be modeled to illustrate the most important aspects of the natural phenomenon. Through this process, plants use energy in sunlight to turn carbon dioxide gas and water into sugar. Plants then use this sugar to grow. At the same time, plants produce oxygen gas as a waste product which animals breathe. Read the prompt and study the diagram. What cause and effect prediction can be used to test the assumptions in the model?
with more sunlight more sugar will be produced by the plant
In yeast cells, the process that occurs when there is not enough oxygen for aerobic respiration is called
fermentation.
The main result of photosynthesis is
food production.
Which factor would not increase the production of glucose by photosynthesis in plants?
freezing temperatures
What are the products of photosynthesis?
glucose and oxygen
Energy + 6CO2 + 6H2O → 6O2 + C6H12O6 The purpose of photosynthesis is to produce usable chemical energy or glucose from solar energy. If the formula for glucose is C6H12O6, how many atoms of carbon are used to produce the glucose?
6
The process of photosynthesis can be represented by the chemical formula
6CO2 +6H2O + Light → C6H12O6 + 6O2
Both aerobic cellular respiration and lactic acid fermentation produce ATP, though in different amounts. These two ATP-producing processes have some major differences as well as some similarities.
ATP production begins with glucose.
Which of these is NOT part of cellular respiration?
Calvin Cycle
Bradley decides one day to run a marathon without any training. After ten minutes has elapsed and Bradley has run half a mile, he begins to get cramps in his thighs. He is also breathing very rapidly. What is causing the cramps on Bradley's legs?
Lactic acid buildup in his muscles due to a lack of oxygen to his cells.
________________ and _______________ reactions are both parts of photosynthesis.
Light-dependent; light-independent
The process of cellular respiration
breaks down food molecules to release stored energy.
The ATP molecule shown is the universal energy source for cellular activities. Which of these processes is used to break down glucose into ATP that is usable by the cell?
respiration
Plant cells undergo photosynthesis to produce glucose, a usable form of chemical energy. The energy produced by plants becomes the base of an energy pyramid. Given the situation seen above, what reactant is missing in order for photosynthesis to occur?
water
The process of cellular respiration can be represented by the chemical formula
C6H12O6 + O2 → CO2 + H2O + energy
The by-products of cellular respiration include
carbon dioxide and water.
The major light absorbing pigment in green plant photosynthesis is
chlorophyll.
Which of these CORRECTLY explains one difference between the processes of photosynthesis and respiration?
The Calvin cycle takes place only in the chloroplast.
The final electron acceptor in aerobic respiration is
oxygen.
Which is common to both photosynthesis and respiration?
Chemical energy is produced in the form of ATP.
Which statement correctly describes the diagram? (glucose)
The process in which carbon dioxide is used also forms glucose.
The image models the process of photosynthesis. Plants use sunlight, plus carbon dioxide and water to produce food, or glucose (a sugar). The by-product of photosynthesis is oxygen, which is added to our atmosphere. During a summer drought, what can we expect to happen to these strawberry plants?
There will be less sugar produced.
Ms. Green's biology students were studying cellular respiration. One simple organism, yeast, can be used to test the rate of fermentation using different variables. Each group mixed 2 grams of yeast with warm water and placed the mixture into one of five test tubes. The variables can be seen on the graph of student data. Test tube five held only yeast and warm water. The groups used the height of the carbon dioxide bubbles produced in a test tube to determine which group had the highest rate of fermentation. Based on the data collected, what must be added to the yeast in the test tube in order to facilitate fermentation?
a food source.
Energy + 6CO2 + 6H2O → 6O2 + C6H12O6 This is the chemical reaction that occurs during photosynthesis; identify which of these is a product in this chemical reaction.
oxygen
Respiration involves the breakdown of sugar. This process results in the production of energy for the cell. In order for cells to produce the MOST energy, what gas should be present?
oxygen
Look carefully at the model. Plants take in and release carbon dioxide. Plants require carbon dioxide for the process of
photosynthesis.
What are the reactants of cellular respiration?
sugar and oxygen
In the picture, groups of pigments that capture light energy are located on the
thylakoid membrane.
The light dependent reactions take place in the
thylakoid of the chloroplast.
