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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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
Transcribed Image Text:11. Connect/Review, L.18.11: All chemical reactions require energy, including photosynthesis and cellular respiration.
What molecule allows organisms to undergo many chemical reactions in an efficient manner by lowering the
activation energy?
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- Enzymes are: [Select all that apply.] -waste products from the chemical reactions they catalyze. -molecules that are a main source of energy for most cells. -molecules that have specific shape that bind specific molecules. -mostly proteins. -molecules that catalyze (speed up) other chemical reactions. -waste products from most cellular chemical reactions.arrow_forwardPlz do Asap...!arrow_forwardChapter 2.4: Chemical Reactions Transform Substances break down? or catabolic? energy released? or AG>0? spontaneous? CHEMICAL REACTION build up? anabolic? or not or or energy AG<0? spontaneous? required? Co aing g *specific reaction name ?arrow_forward
- Q6. Organism A grows at high temperature; Organism B grows at low temperature. What could be assumed about Organism A and B? Organism B has more unsaturated fatty acids in its membranes than Organism A. Organism A has proteins whose tertiary structure is held together with bonds of a higher energy than Organism B. Organism A would not grow as quickly at low temperature as Organism B. Organism A would produce more desaturase enzymes than Organism B. A. 1,2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1,2,3 and 4 are correctarrow_forwardle.com/document/d/1aV35WZHe72GRC05NgDa6otm70ZIPIBC-T2NiT7IwmOU/edit Chemical Reactions ☆ 回 G Tools Add-ons Help Last edit was 2 minutes ago E - E E I text Georgia 12 BIUA 7 3 4 5 I 6 The table below lists enzymes that function in different locations in the human body, and the temperature and pH ranges of these locations. Different enzymes are secreted in each of the three locations. Enzyme Location Temperature (°C) pH ptyalin mouth 36.7-37.0 6.5-7.0 pepsin stomach 37.3-37.6 1.0-3.0 trypsin small intestine 37.3-37.6 7.5-9.0 • Using the pH column in the chart, explain why pepsin can work in the stomach, but not the small intestines. State how a fever of 40°C would most likely affect the activity of these enzymes and support your answer using information from the temperature column in the chart. 27°Farrow_forwardFinish the sentence. The function of enzymes that has evolved over millions of year is to carry out the reactions as fast as possible. carry out the reactions at a rate that fits the needs of cellular metabolism. bind substrate as tightly as possible change the substrate product equilibrium in favour of product. bind product tightlyarrow_forward
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