BIOCHEM-ACHIEVE(FIRST DAY DISCOUNTED)
9th Edition
ISBN: 2818000069358
Author: BERG
Publisher: MAC HIGHER
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Chapter 19, Problem 12P
Interpretation Introduction
Interpretation:
The advantage of having an extensive set of thylakoid membranes in the chloroplasts should be determined.
Concept introduction:
The chloroplast consists of thylakoids which comprise of sac-like membranous structures (cisternae) whichcombinesto form stacks, known as grana. The granaare interconnected by Stromal lamella. The thylakoid is known o present inArabidopsis thaliana chloroplast.
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Odd man out. Which of the following is not a component of chloroplasts? a. Thylakoid membrane b. Stromal lamellae c. Cristae d. Granum
Modified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true.
During photorespiration, Rubisco acts as carboxylase that catalyzes the reaction of RuBP and oxygen to form phosphoglycolate and PGA in the chloroplast.
Fo-F1 ATPase. The energy for ATP synthesis from ADP and Pi is provided by the downhill transport of protons through the rotary FoF1 ATP synthase (lecture 22). The enzyme has 3 a-b and 12 ‘c’ subunits. The mitochondrion maintains Df=180 mV (negative inside), pHin = 8, pHout=7, [Pi] = 3 mM and ADP is present as well.
How much energy is available (from the proton electrochemical gradient) for ATP synthesis under these conditions (in kJ/mol)?
What [ATP]/[ADP] ratio will be established at steady-state under these conditions?
What would be the [ATP]/[ADP] ratio if the enzyme had only 9 ‘c’ subunits? Remember that full revolution of the crank (gamma subunit) produces 3 ATP.
Chapter 19 Solutions
BIOCHEM-ACHIEVE(FIRST DAY DISCOUNTED)
Ch. 19 - Prob. 1PCh. 19 - Prob. 2PCh. 19 - Prob. 3PCh. 19 - Prob. 4PCh. 19 - Prob. 5PCh. 19 - Prob. 6PCh. 19 - Prob. 7PCh. 19 - Prob. 8PCh. 19 - Prob. 9PCh. 19 - Prob. 10P
Ch. 19 - Prob. 11PCh. 19 - Prob. 12PCh. 19 - Prob. 13PCh. 19 - Prob. 14PCh. 19 - Prob. 15PCh. 19 - Prob. 16PCh. 19 - Prob. 17PCh. 19 - Prob. 18PCh. 19 - Prob. 19PCh. 19 - Prob. 20PCh. 19 - Prob. 21PCh. 19 - Prob. 22PCh. 19 - Prob. 23PCh. 19 - Prob. 24PCh. 19 - Prob. 25PCh. 19 - Prob. 26PCh. 19 - Prob. 27PCh. 19 - Prob. 28PCh. 19 - Prob. 29PCh. 19 - Prob. 30PCh. 19 - Prob. 31P
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- Modified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true In the process of photosynthesis, the red wavelength is emitted in a process called as phosphorescence.arrow_forwardChemical energy. The diagram below shows a metabolic pathway that occurs in chloroplasts during photosynthesis. ribulose bisphosphate (RuBP) ADP + P₁ carbon dioxide (CO₂) 1 X HINEW ribulose-1,5-bisphosphate carboxylase-oxygenase (RuBisCo) glucose triose phosphate (TP) State two features of metabolic pathways? two key features of metabolic pathways glycerate-3-phosphate (GP) are their -X ADP + P₁ interconnectednearrow_forward40 words or fewer. Explain why we would not survive without primary producers, in particular photosynthetic organisms. Be as complete and specific as possible within the word limit.arrow_forward
- Life requires energy. Describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.arrow_forwardFo-F1 ATPase. The energy for ATP synthesis from ADP and Pi is provided by the downhill transport of protons through the rotary FoF1 ATP synthase . The enzyme has 3 alpha-beta and 12 ‘c’ subunits. The mitochondrion maintains change in membrane potential=180 mV (negative inside), pHin = 8, pHout=7, [Pi] = 3 mM and ADP is present as well. . What [ATP]/[ADP] ratio will be established at steady-state under these conditions? What would be the [ATP]/[ADP] ratio if the enzyme had only 9 ‘c’ subunits? full revolution of the crank (gamma subunit) produces 3 ATP.arrow_forwardNo free lunch. Explain why maintaining a high concentration of CO2 CO2 in the bundle-sheath cells of C4C4 plants is an example of active transport. How much ATP is required per CO2CO2 to maintain a high concentration of CO2CO2 in the bundle-sheath cells of C4C4 plants?arrow_forward
- Life requires energy. In a short essay (100–150 words), describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.arrow_forwardphotosynthesis. Historical Discovery Process The chemical changes that occur during photosynthesis have been investigated for the past 300 years. The general highlights of these discoveries help us to understand the basic process of photosynthesis. Three centuries ago people wondered where plants came from. They knew that plants grew out of the ground, but how that happened was a complete mystery to them. The first step in answering the question was to plant a small tree in a large pot supported off the ground. They did this so that the soil of the container was separated from the soil of the earth. Only the dirt in the pot was available to the plant. The people cared for the plant during one year. At the end of the year the small tree had gained 100 kg. (The actual data from this experiment have been changed to simplify the discussion.) 1. What do you think the experimenters considered as two possible sources for the substances (matter) that became incorporated into new tree growth?…arrow_forwardQI. Drag and drop into each box in the biological passage the correct answer. The Plant Kingdom is composed of multicellular organisms which are auto-photosynthetic and There are two other groups of organisms which are called traced back Some members are photosynthetic but primarily unicellular. The characteristics of the organisms can be which determines structural changes. For example, the present-day zebras have stripes or lines from the neck to the upper extremities brought about by small change in the pool hence changes are not noticeable. This process of evolution is called natural selection autotrophic protists gene phylogenetically gradualism macroevolution punctuated equilibrium heterotrophicarrow_forward
- Modified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true. A cyclic pathway runs in Photosystem I to make ATP. Here, electrons are cycled back to photosystem I and NADPH is formed.arrow_forwardModified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true. Triose phosphate is considered as the net product of the Calvin cycle of photosynthesis, which is then utilized for the synthesis of the end products that are glucose and starch.arrow_forwardModified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true. Photorespiration is a photosynthetic process by which C3 plants take up oxygen in the light, give out some carbon dioxide, and does not produce ATP.arrow_forward
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Photosynthesis & Respiration | Reactions | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=3XIyweZg6Sw;License: Standard YouTube License, CC-BY