The first step of the light reactions is the transfer (powered by solar energy) of an electron to the primary electron acceptor within photosystem proteins of the: a. Thylakoid membrane b. Intermembrane space of a chloroplast c. Stroma of a chloroplast d. Cell membrane of a mesophyll cell

The first step of the light reactions is the transfer (powered by solar energy) of an electron to the primary electron acceptor within photosystem proteins of the: a. Thylakoid membrane b. Intermembrane space of a chloroplast c. Stroma of a chloroplast d. Cell membrane of a mesophyll cell

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter6: Where It Starts-photosynthesis

Section: Chapter Questions

Problem 15SA: Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2...

See similar textbooks

Related questions

Q: The figure below shows the concentration of glucose for a 24-hour period on both the process of…

A: The graph above shows that photosynthesis is maximum during the day, as the peak is high during the…

Q: When a photosystem absorbs light,_____ . a. sugar phosphates are produced b. electrons are…

A: Photosynthesis is a cycle utilized by plants and different life forms to change over light energy…

Q: Suppose an experiment is performed in which plant I is supplied with normal carbon dioxide but with…

A: In plant I the normal carbon dioxide is supplied with radioactive oxygen present in the water. Plant…

Q: Plants where light independent reactions take place in the same cells as light dependent reactions…

A: PHOTOSYNTHESIS:- It is the process of producing food (Carbohydrates) by the plants by means of…

Q: Where did the energy to power the light-independent reactions come from? A. chlorophyll from…

A: Autotrophy is nothing but the ability to produce organic molecules using carbon. Autotrophs commonly…

Q: In which compartment of the chloroplast and mitochondrion does the ATP synthase pump the protons…

A: ATP synthase is an enzyme that catalyzes the formation of ATP from the phosphorylation of ADP with…

Q: Photosynthesis A. is the only energy-generating pathway for plants, cyanobacteria, and algae. B.…

A: Photosynthesis is a process that plants and other organisms use to convert light energy into…

Q: The light dependent reactions of photosynthesis are characterized by A. oxidation of carbon…

A: Photosynthesis is the process in which carbon dioxide and water combine in the presence of…

Q: Which of the following is not common to the chloroplast andmitochondria?a. Both use membranes to…

A: Mitochondria are the oval-shaped organelle with two membranes called the powerhouse of a cell. It…

Q: When discussing why the rate of photosynthesis did not increase at higher light intensities, the…

A: Photosynthesis is a process by which carbon dioxide is transformed into carbohydrates. It happens in…

Q: During the light reactions of photosynthesis, pigments within the thylakoids membranes absorb solar…

A: Photosynthesis is the process through which plants synthesise oxygen and energy in the form of sugar…

Q: The overall flow of electrons in the light-dependent reactions is froma. antenna pigments to the…

A: Carbohydrates are required for supporting infinite life forms on Earth, and carbon dioxide is a…

Q: Which of the following are found within chloroplasts? a. Stroma b. Thylakoid membrane c.…

A: Chloroplasts is an organelle in plants. It is the site of photosynthesis.

Q: During the daylight, what might you observe in chloroplasts? A decreased concentration of H+ in the…

Q: In cyclic photophosphorylation, how are the reaction center electrons replaced? A) An electron is…

A: The phosphorylation of ADP to ATP using the sunlight as source of energy is called…

Q: How does the electron transfer pathway from photosynthesis II to photosynthesis I in the…

A: Photosynthesis can be split into two types of reactions: light dependent reaction and light…

Q: Using the graph comparing photosynthetic rate and absorption of different wavelengths of light, what…

A: Cholorophyll is the green pigment in plants that absorbs light of specific wavelength and reflect…

Q: Which stage of light dependent reactions of photosynthesis is linked to photo system 1 ?

A: Photosynthesis is a process in which the photosynthetic organisms like plants and some bacteria use…

Q: How is the energy from the sun transported within chloroplasts and ultimately used to create NADPH…

A: Schematic and simplified representation of effects of (Pb) lead on photosynthetic chain (a) and…

Q: The part of the chloroplast where Calvin cycle takes place is the a. Thylakoid b. inner membrane C.…

A: Calvin cycle or C3 Cycle Calvin cycle occurs in all photosynthetic plants irrespective of C3 or C4…

Q: Suppose there were plants that had a high concentration of Chlorophyll b, but lacked chlorophyll a,…

A: Photosynthesis is a complex process by which carbon dioxide and water are converted into…

Q: In the light-dependent reactions, what accumulates in the thylakoid compartment of chloroplasts? a.…

A: The correct answer would be C. (O2)

Q: Which of the following changes would decrease ATP production in the light-dependent reactions of…

A: The energy consumed by sunlight is retained by two forms of energy-carrier molecules: ATP and NADPH,…

Q: During light-generated photosynthesis reaction pH is lowered in 1. Thylakoid lumen 2. Thylakoid…

A: During photosynthesis there is a decrease in the pH of the thylakoid space by almost 1pH unit. This…

Q: If you could measure pH within a chloroplast, where would it be lowest? a. In the stroma b. In…

A: Chloroplasts are mainly present in plants and algae. They have the capability to utilize the…

Q: The Calvin cycle, the "dark reaction" or Carbon fixation reactions of photosynthesis, cannot occur…

A: The Calvin cycle, the "dark reaction" or Carbon fixation reactions of photosynthesis, cannot occur…

Q: Light initiates different types of cellular reactions. Which of the following responses to light…

A: Introduction Cellular respiration is the breakdown of sugar in the presence of oxygen in the…

Q: Explain the advantages and disadvantages of the C3 pathway for photosynthesis. Under which…

A: C3 plant: - Plants that utilizes the C3 pathway as the sole mechanism to convert carbon dioxide into…

Q: In cyanobacteria and photosynthetic eukaryotes, the light-dependent reactions proceed in/at…

A: The process of converting light energy to chemical energy is divided into two stages: light…

Q: During the daylight, what might you observe in chloroplasts? O a. Increased rates of water…

A: Chloroplast is structure present in the plant as well as in green algae. This is a site of…

Q: Which of the following are the products of the light reactions of photosynthesis. A. Glucose B.…

A: Photosynthesis can be defined as the process with which the green plants and some other organisms…

Q: Where is chlorophyll located in the chloroplast? (a) thylakoid membranes (b) stroma (c) matrix (d)…

Q: The denaturation temperature of rubisco in a certain plant was determined to be 76.2 degrees…

A: BASIC INFORMATION PHOTOSYNTHESIS It is the process in which the plant makes their own food. In…

Q: Which part of the chloroplast MOST clearly uses modified surface-area-to-volume ratios to function…

A: The chloroplast could be a structure found within the cells of plants and alga that is the…

Q: As part of the process of photosynthesis, acidification of the thylakoid lumen occurs. The…

A: The thylakoid lumen is continuously surrounded by the thylakoid membrane.

Q: 86. The main pigment of photosynthesis is: a chlorophyll a b. chlorophyll b c. carotenoids d. All of…

A: Introduction Photosynthesis:- It is the process by which phototrophs convert light energy into…

Q: During photosynthesis, ATP is synthesized as protons flow across the thylakoid membrane into the…

A: Photosynthesis is the process of conversion of light energy into chemical energy in the presence of…

Q: How many hydrogen ions are taken from the stroma and added to the lumen during the light-reaction of…

A: Photosynthesis is a process by which autotrophic organisms prepare their own food by using sunlight.…

Q: In a photosynthetic plant cell, chlorophyll is located: a. in the stroma b. in the outer membrane of…

A: Plants play important role in producing oxygen on the earth. Plants go through the process known as…

Q: What is a redox reaction? When the water molecule donates its electron to the chlorophyll molecule…

A: A. Redox reactions are oxidation-reduction chemical reactions in which the reactants undergo a…

Q: Both temperature and light intensity can affect the rate of photosynthesis. However, in this study,…

A: Light and temperature are the single most important factors in the rate of photosynthesis with…

Q: The investigator suggested that insufficient amounts of carbon dioxide in the water may have been…

A: Photosynthesis is the process of the transformation of light energy into chemical energy by green…

Q: Which of the following occurs ONLY in photosystem I and NOT in photosystem II? a. The energy of…

A: Asked : The process that occurs only in photosystem I and not II.

Q: In a growing condition with limited air supply, which of the following processes will be directly…

Q: In chloroplasts, the light reactions power the creation of ATP via chemiosmosis. In relation to this…

A: The electrons from the initial light reaction reach Photosystem I, then are raised to a higher…

Concept explainers

Photosynthesis

Plants have a capacity that we humans can only imagine— the ability to produce food from sunlight. Sure, we can prepare some dishes that we can savor on, but it become possible because of the plants (as they serve as a producers of all the raw materials required). Photosynthesis is the method of assembling carbohydrates with the aid of sunlight.

Question

The first step of the light reactions is the transfer (powered by solar energy) of an electron to the primary electron acceptor within photosystem proteins of the:

	a.	Thylakoid membrane
	b.	Intermembrane space of a chloroplast
	c.	Stroma of a chloroplast
	d.	Cell membrane of a mesophyll cell

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.

Similar questions

Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of photosynthesis by exposing the green alga Chlorella to CO2 labeled with the radioisotope carbon 14. By looking at which compounds the C14 ended up in, they were able to identify all intermediates in this cyclic pathway. Why did they predict correctly that the same set of intermediates would be formed in the light reaction in land plants?
In ________, electrons that have been energized by light contribute their energy to add phosphate to ADP, producing ATP. (a) crassulacean acid metabolism (b) the Calvin cycle (c) photorespiration (d) C4 pathways (e) photophosphorylation
Where in plant cells does the Calvin cycle take place? a. thylakoid membrane b. thylakoid space c. stroma d. granum
Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2 fixation b. converts light to chemical energy ____ autotroph c. self-feeder ____ ATP forms NADPH does not d. electrons cycle back to photosystem ____ photorespiration e. problem in C3 plants ____ photosynthesis f. Calvin-Benson cycle product ____ pigment g. water molecules split ____ photolysis in photosynthesis h. rubisco function
In C3 plants, _______ makes sugar production inefficient when stomata close on hot, dry days. a. photosynthesis c. photorespiration b. photolysis d. carbon fixation
Photosynthesis directly opposes respiration in determining how plants influence atmospheric CO2 concentrations. When a leaf is in the light, both photosynthesis and respiration are occurring simultaneously. The data in the Table were collected from the leaf of a sagebrush plant that was enclosed in a chamber that measures the rate of CO2 exchange. The same leaf was used to collect the data in Interpret the Data in Chapter 7. Respiration is shown as a negative and photosynthesis as a positive rate of CO2 exchange. The net photosynthesis rate is the amount of CO2 (in micromoles per square meter per second) assimilated by the leaf while respiration is occurring; a positive value indicates more photosynthesis is occurring than respiration. The light exposed to the leaf is quantified as the number of photons in the 400 to 700 nm wavelength, the photosynthetic photon flux density (PPFD); 2,000 mol/m2/s is equivalent to the amount of light occurring at midday in full Sun. Observation Photosynthetic Photon Flux Density (PPFD) (mol/m2/s) Net Photosynthesis (mol/m2/s) 1 2,000 9.1 2 1,500 8.4 3 1,250 8.2 4 1,000 7.4 5 750 6.3 6 500 4.8 7 250 2.2 8 0 -2.0 Why is net photosynthesis negative when PPFD is zero? Looking at the respiration data from Interpret the Data in Chapter 7, at what temperature do you think these data were collected? Source: Data based on unpublished research by Brent Ewers, University of Wyoming.
Which part of the Calvin cycle would be affected if a cell could not produce the enzyme RuBIsCO?
The Calvin-Benson cycle starts with _______. a. the absorption of photon energy b. carbon fixation c. the release of electrons from photosystem II d. NADP+ formation
Pfr, the active state of _______________, forms when red light is absorbed. (a) photosystem I (b) phytochrome (c) far-red light (d) phototropin (e) cryptochrome
Which of the following changes would decrease ATP production in the light-dependent reactions of photosynthesis? a. decreasing the pH of the thylakoid lumen b. decreasing the pH of the chloroplast stroma c. increasing the concentration of NADP+ in the chloroplast stroma d. making the thylakoid membrane freely permeable to protons by adding a proton channel e. two of the above would decrease ATP production
From which component of the light-dependent reactions does NADPH form most directly? a. photosystem II b. photosystem I c. cytochrome complex d. ATP synthase
The role of photosystem 1 and photosystem 2 in the process of photosynthesis is to a. absorb sunlight and distribute the energy as heat b. absorb sunlight and transfer the energy to electrons c. form ATP as hydrogen ions cross the thylakoid membrane d. transfer electrons to form NADPH