EBK BIOLOGY TODAY AND TOMORROW WITHOUT
5th Edition
ISBN: 8220100557187
Author: STARR
Publisher: CENGAGE L
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Chapter 5, Problem 9SQ
Summary Introduction
To examine: Plants produce all their adenosine triphosphate (ATP) by photosynthesis.
Introduction: Aerobic respiration is process generating cellular energy involving oxygen. There are three stages in the reactions of aerobic respiration includes glycolysis, citric acid cycle, and electron transport chain. The final stage of aerobic respiration in eukaryotes occurs in the mitochondria. 36 adenosine triphosphate (ATPs) per glucose is the net yield of aerobic respiration.
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Question 15
Which of the following statements concerning photosynthesis and cellular respiration in plants is TRUE?
Photosynthesis and cellular respiration occur only in the light.
Photosynthesis occurs only in the light, and cellular respiration occurs only in the dark.
Photosynthesis occurs only in the light, and cellular respiration occurs in both the dark and the light.
Photosynthesis and cellular respiration occur in both the dark and the light.
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When talking about photosynthesis, the word "synthesis" means to bring together molecules to make glucose. True or false?
True
False
About half of the carbohydrates produced by photosynthesis are used for metabolic purposes in plants. What are the other carbohydrates used for?
Making leaves
Photosynthesis
Growth
Signaling
Chapter 5 Solutions
EBK BIOLOGY TODAY AND TOMORROW WITHOUT
Ch. 5 - Biofuels A lot of energy is locked up in the...Ch. 5 - Biofuels A lot of energy is locked up in the...Ch. 5 - Biofuels A lot of energy is locked up in the...Ch. 5 - Most of the carbon that land plants use for...Ch. 5 - Prob. 2SQCh. 5 - Which of the following statements is incorrect? a....Ch. 5 - Prob. 4SQCh. 5 - Prob. 5SQCh. 5 - Prob. 6SQCh. 5 - Prob. 7SQ
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- Photosynthesis releases energy that is immediately usable by the cell to do work. O True O Falsearrow_forwardThe citric acid cycle occurs outside the mitochondria. Group of answer choices True False From a plant's perspective, the main purpose of photosynthesis is to Group of answer choices to produce sugars and oxygen for heterotrophs. plants are not cognitive organisms and therefore we have no idea what the "purpose" of photosynthesis is for the plant. to produce enough O2 gas for the plant to survive through the night. make sugars, such as glucose, to use for building cell walls and for energy needed by the plant. The main purpose of the light reactions in photosynthesis is Group of answer choices to take the high energy electrons out of glucose. to generate ATP and NADPH to send to the Calvin Cycle. to produce all the ATP the plant cell needs for its cellular work. to produce enough oxygen gas for humans to survive. The actual process of making sugar in photosynthesis occurs during the Calvin cycle. Group of answer choices True…arrow_forwardWhen chlorophyll absorbs the energy in sunlight, this energy: Activates electrons in chlorophyll Generates heat used by the plant for photosynthesis O Is used to break apart sugararrow_forward
- True or false during the dark reaction of photosynthesis energy in the form of light is absorbed and converted to chemical energy in the form of a TParrow_forwardWhich of the following would still be possible in a plant with nonfunctional mitochondria in the dark? Select all that apply. Krebs cycle Calvin cycle Oxidative phosphorylation Cyclic photophosphorylation Glycolysis Noncyclic photophosphorylationarrow_forwardFor questions 4 – 7; fill in the blank to complete each sentence or statement. 4. The energy required is in the form of 5. The electrons that chlorophyll loses to the electron transport chain are replenished by molecules. 6. 7. in order to begin photosynthesis. In many plants, the rate of photosynthesis when the weather becomes very cold. Oxidation means the of electrons. The electrons in photosynthesis are carried by molecules of of electrons, and reduction means thearrow_forward
- Most plants store excess energy from photosynthesis. Name some times when recovery of stored energy may occur. Does energy recovery always occur in the same sites where photosynthetic capture occurred?arrow_forwardIS THIS A GOOD BREAK DOWN? WHAT ELSE CAN I SHOULD I ADD? Briefly explain the light-dependent reactions of photosynthesis: where does this take place, what are the reactants and what is produced? Light-dependent reactions are used to convert light energy into chemical energy for use by the plants. Through the process of photosynthesis, the energy collected from the sun is broken down, along with water molecules, to produce NADPH and ATP. Light-dependent reactions Goal Convert light energy into chemical energy Location Chloroplasts—thylakoids Input Sunlight, H2O, NADP+, ADP Output NADPH, ATP, O2arrow_forwardThe main purpose of the light reactions in photosynthesis is Group of answer choices to take the high energy electrons out of glucose. to generate ATP and NADPH to send to the Calvin Cycle. to produce all the ATP the plant cell needs for its cellular work. to produce enough oxygen gas for humans to survive.arrow_forward
- Cells are open systems that exchange matter and energy with their surroundings. Which of the following best explains why plant cells require sunlight to make organic compounds, according to Gibbs’s theory of free energy? The photosynthetic reaction releases free energy to the surroundings. The photosynthetic reaction’s free energy is in equilibrium. The reactants of photosynthesis have less free energy than the products. The change in free energy (∆G) of the photosynthetic system is less than zero.arrow_forwardWhat are the stages of the Calvin-Benson cycle? Select all that apply. The resulting unstable six-carbon molecule splits into two three-carbon molecules of PGA. ATP and NADPH are used to convert PGA molecules to PGAL. Most of the PGAL is used to regenerate RuBP, but some is exported to the cytoplasm to produce carbohydrates. Rubisco attaches CO2 to a five-carbon organic compound called RuBP. Rubisco is used to convert PGA molecules to PGAL.arrow_forwardIn photosynthesis, which of the following is NOT true about the light-dependent (“light”) reaction? In photosynthesis, which of the following is NOT true about the light-dependent (“light”) reaction? Glucose is synthesized from CO2 and water during the light-dependent reaction The light-dependent reaction converts light energy to chemical energy stored in ATP The light-dependent reaction (non-cyclic) captures electrons in NADPH Light-excited electrons in chlorophyll provide the energy for ATP production None of the other four answers (All are true of the light-dependent reaction)arrow_forward
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