BIOCHEMISTRY-ACHIEVE (1 TERM)
9th Edition
ISBN: 9781319402853
Author: BERG
Publisher: MAC HIGHER
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Chapter 19, Problem 9P
Interpretation Introduction
Interpretation:
To explain that plants exposed to light of wavelength 680 nm evolvesmore oxygen than the plants exposed to the light of 700 nm.
Concept introduction:
Plants absorb a portion of light in the range of wavelength 400-700 nm.The most abundant pigment found in plantsis Chlorophyll a. The light reaction also referred as the photochemical phase, includes absorption of light, release of oxygen, water splitting and formation of high energy chemical intermediates ATP and NADPH.
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40 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.
Chemiosmosis. ATP synthesis in chloroplasts is usually light dependent; it does not happen in the dark.
When researchers shifted isolated chloroplasts from a low pH solution to a more alkaline (higher pH) solution, ATP synthesis occurred even in the absence of light! This was an experiment used to support the chemiosmosis mechanism of ATP formation in chloroplasts. Why?
What would happen if the isolated chloroplasts were shifted to a lower pH solution?
What would be the results if the above experiments were performed in the presence of light?
If these experiments were performed in mitochondria instead of chloroplasts, what results would we expect?
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.
Chapter 19 Solutions
BIOCHEMISTRY-ACHIEVE (1 TERM)
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- 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.arrow_forwardRET or FRET. Resonance energy transfer: a. Results in separation of charge. b. Powers ATP synthesis. c. Allows energy flux in the light-harvesting complex. d. Does not existarrow_forwardc) . solar photons. Describe two ways through which Photosystem I and Photosystem II optimize the capture of d) good oxidant and a good reductant at the same time. With a simple frontier orbital diagram, explain why the photo-excited P680 pigment is both aarrow_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_forwardPlease help! Photosynthesis and Cell respiration: A. What should happen to the O2 levels in a closed container containing a plant during the day? why? B. And what happens to the O2 levels during the night (no light)? Why?arrow_forwardSmall explanation please. what is a product in the first stage of the Q- cycle? a. two electrons b. Q- cation c. cyt c (oxidized) d. two more protons in the matrix e. Q- radical anionarrow_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_forwardCan someone help me understand this. A student set up an experiment to show the effect of light color on photosynthesis in Elodea plants. She filled two test tubes with distilled water and placed a piece of Elodea in each of the tubes. She added a drop of phenol red, which turns red in a basic solution and yellow in an acidic solution. She blew in each tube before placing the volumeters on the top of the tube. Why did she blow into the tube? to add oxygen to the tube to add carbon dioxide to the tube to add carbohydrates to the tube to add sodium bicarbonate to the tubearrow_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. Chlorophyll a that is bright green in color is the pigment that initiates the light dependent reactions of photosynthesisarrow_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. 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. Plants use light energy mostly in the invisible light range for photosynthesis.arrow_forwardLife 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_forward
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