Which do the electron transport chains of mitochondria and chloroplasts have in common? A. oxygen as an electron donor B. water as an electron acceptor C. use of a hydrogen ion gradient D. one main membrane protein pump

What types of cells perform photosynthesis?  a All plants  b All eukaryotic  c All prokaryotic  d All animals

You are a marine biologist sampling an offshore ecosystem. One day, you find a red organism floating in one of your nets. It has structures that resemble the leaves and stems of a plant. You hypothesize that this organism might be photosynthetic. Describe how you could test this hypothesis using a pH indicator solution. a. In detail, describe the steps you would take and the reactants of photosynthesis required. b. What change in pH would indicate that the organism was undergoing photosynthesis, and how would the indicator respond?

plyoolysls HOYN O 2 FADH Krebs cycle 2 ATP electron transport chain 00 CoA acetyl coenzyme A 0000 oxaloacetic acid 1. citric acid NAD NADH NADH NAD 2. 6. O0చఉ 0 a-ketoglutaric acid malic acid FADH FAD 5. 3. NAD NADH ADP succinic acid 4. a-ketoglutanic acid denvative ATP

Researchers can use solvents to extract, or break apart, components of a cell or tissue to separate and/or isolate components. If you extracted some cells with a non-polar organic solvent, what would the solvent contain the MOST of at the end of the process? A. chlorophyll B. ATP C. Glucose D. hydrogen ions

Consider the involvement of electrons in the Electron Transport Chain of Cellular Respiration. What molecule were the electrons part of at the begining of the electron transport chain. (your answer could be a single word) What molecule are the electrons part of at the end of the electron transport chain (your answer could be a single word) In one simple sentence: How have the electrons changed over the course of the electron transport chain.

Why should it not be surprising that for many cells water requires a protein for its transport across a membrane? A. There is never a concentration gradient for water across the membrane to drive its transport. B. The transport protein is needed to prevent the hydrolysis of the phospholipid chains as water crosses the membrane. C. Water is very polar which inhibits its free diffusion across the membrane. D. All molecules require transport proteins to cross a membrane.    In the mitochondria phosphate ion (PO43-) and H+ are transported together from the intermembrane space into the matrix. Which statement applies? A. The interior of the transport protein must be uncharged. B. The transport protein must have a relatively large central channel to accommodate both ions. C. The transport protein is a symport. D. All of the above

Which of the following would be a location where complexes of the electron transport chain could be found in plant cells? Select one: a. matrix of mitochondria b. thylakoid membranes of chloroplasts c. outer membrane of mitochondria d. cytoplasm e. stroma of chloroplasts

Since the air bubbles in bread are generated by yeast, how will the spaces in this bread compare to those in a loaf made using normal yeast?   A. more bubbles    B. differently-shaped bubbles   C. smaller bubbles   D. bubbles more on the interior of the loaf

High energy electrons are necessary for the electron transport step of cellular respiration. Where did these electrons come from? water oxygen carbon dioxide O glucose Question 9