Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 8, Problem 7RQ
Which statement about thylakoids in eukaryotes is not correct?
- Thylakoids are assembled into stacks
- Thylakoids exist as a maze of folded membranes
- The space surrounding thylakoids is called stroma
- Thylakoids contain chlorophyll.
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What name is given to the membranous sacs found within a chloroplast?
thylakoids
stroma
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cristae
Which pigment is necessary for an organism to perform photosynthesis?
hemoglobin
beta carotene
chromatin
chlorophyll
Chlorophyll is composed of a central porphyrin ring and a strongly hydrophobic phytol side chain. Which of the following correctly describes the function of the phytol side chain?
absorbs visible light
energizes an electron
anchors the chlorophyll in the thylakoid membrane
creates fluorescence
Chapter 8 Solutions
Biology 2e
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- Inside the thylakoid is a fluid-filled space calledarrow_forwardChloroplasts are responsible for photosynthesis in eukaryotic cells of plants and algae. The primary pigment (chlorophyll) responsible for this reaction is retained in the of the chloroplast. Group of answer choices Inner Membrane Thylakoid Membrane Cristae Outer Membranearrow_forwardO, + H,O + Light Energy → C,H,,0, +. Reactants Energy is captured from Products Granum photosynthesis to occur. order for Stroma Lamellae Chloroplasts Outer Membrane Inner Membranearrow_forward
- Carotenoids Chlorophyll Phycobilin c ______________are pigments in the plants chloroplasts that helps in trapping the sunlight. There are different pigments that are found in photosynthetic organisms. Chlorophyll a and b are mostly found in plants. Meanwhile, chlorophyll ___, is found on most microorganisms. There are other pigments that can be found in photosynthetic organisms which help in absorbing a different spectrum of visible light such as, _________________ that usually gives the yellow-orange-red colors of leaves in the autumn, and ___________________, that is water-soluble and are present among cyanobacteria and red algae.arrow_forwardA prokaryote converts food energy into the chemical energy of ATP on/in its: chromosome. flagella. ribosomes. cell wall. plasma membrane.arrow_forwardCatalase combines two hydrogen peroxide molecules (H2O2+H2O2) to make two molecules of water. A gas also forms. What is the gas?arrow_forward
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- Where is the proton concentration high in the chloroplast? Intermembrane space Thylakoid membrane Stroma Thylakoid spacearrow_forwardWhich of the following happens in presence of toxin that causes outer chloroplast membrane to be less permeable to H2O? increase in amount of O2 produced decreased O2 produced carbohydrate synthesis in chloroplast would increase cytoplasm of plant cells would become hypertonic synthesis of ATP in chloroplast would increasearrow_forwardThe anaerobic, chemoautotrophic archaeobacterium Methanococcus jannaschii uses which of the following carbon-fixation pathways to obtain organic carbon from CO2? cell bio the Hill reaction the Wood-Ljungdahl pathway the Calvin cycle oxygenic photosynthesis the Krebs cyclearrow_forward
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