Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 7, Problem 9TYU
Summary Introduction
Introduction: Biochemical pathway is a long chain of
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Students have asked these similar questions
1. • Active site
• Substrate
• Enzyme-substrate complex
2. What is an enzyme’s role in biochemical reactions?
Inquiry and Analysis
Do Enzymes Physically Attach to
Their Substrates?
When scientists first began to examine the chemical activities of
organisms, no one knew that biochemical reactions were catalyzed
by enzymes. The first enzyme was discovered in 1833 by French
chemist Anselme Payen. He was studying how beer is made from
barley: First, barley is pressed and gently heated so its starches
break down into simple two-sugar units; then yeasts convert these
units into ethanol. Payen found that the initial breakdown requires
a chemical factor that is not alive and that does not seem to be
used up during the process-a catalyst. He called this first enzyme
diastase (we call it amylase today).
Did this catalyst operate at a distance, increasing the
reaction rate all around it, much as raising the temperature
of nearby molecules might do? Or did it use physical contact,
actually attaching to the molecules whose reaction it catalyzed
(its "substrate")?
The answer was discovered in 1903 by French…
4. Enzymes: Remember enzymes have two jobs: they lower activation energy and speed up
reactions.
a. Amylase is an enzyme in our saliva that helps to break down starches into simple
sugars like maltose (made of multiple glucose molecules) in your food.
i. Identify following on the enzyme diagram above:
1
STARCH
EXE
Which is the enzyme?
Amylase
AMYLASE FUNCTION
#
STARCH
Amylase
+
Which is the substrate?
S
MALTOSE
(SUGAR)
D
Amylase
Which is the product of the
reaction?
5. Macromolecules: Complete the chart.
a. What does it mean to say all living things are organic molecules? (Hint what type of
element do they all have to have to be considered organic)
Chapter 7 Solutions
Biology (MindTap Course List)
Ch. 7.1 - Define energy, emphasizing how it is related to...Ch. 7.1 - Use examples to contrast potential energy and...Ch. 7.1 - Prob. 1CCh. 7.2 - Prob. 3LOCh. 7.2 - Prob. 1CCh. 7.2 - Life is sometimes described as a constant struggle...Ch. 7.3 - Prob. 4LOCh. 7.3 - Prob. 5LOCh. 7.3 - Prob. 6LOCh. 7.3 - Prob. 1C
Ch. 7.3 - Prob. 2CCh. 7.4 - Explain how the chemical structure of ATP allows...Ch. 7.4 - Prob. 1CCh. 7.4 - Prob. 2CCh. 7.5 - Relate the transfer of electrons (or hydrogen...Ch. 7.5 - PREDICT Which has the most energy, the oxidized...Ch. 7.6 - Explain how an enzyme lowers the required energy...Ch. 7.6 - Describe specific ways enzymes are regulated.Ch. 7.6 - Prob. 1CCh. 7.6 - How does the function of the active site of an...Ch. 7.6 - How are temperature and pH optima of an enzyme...Ch. 7.6 - Prob. 4CCh. 7 - Which of the following can do work in a cell? (a)...Ch. 7 - Prob. 2TYUCh. 7 - Prob. 3TYUCh. 7 - Test Your Understanding 4. Diffusion is an (a)...Ch. 7 - Prob. 5TYUCh. 7 - Prob. 6TYUCh. 7 - Prob. 7TYUCh. 7 - Test Your Understanding 8. Induced fit means that...Ch. 7 - Prob. 9TYUCh. 7 - Prob. 10TYUCh. 7 - PREDICT In the following reaction series, which...Ch. 7 - Test Your Understanding 12. EVOLUTION link All...Ch. 7 - EVOLUTION LINK Some have argued that evolution is...Ch. 7 - Prob. 14TYUCh. 7 - Prob. 15TYUCh. 7 - Prob. 16TYU
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- Thank you in advance!Based on the model on the picture, please help me identify these (even with no explanation): 4 What are the factors that affect △G? 5. What is energy coupling? In a coupling reaction, what must be the overall value of △G? 6. What does the cell do with the energy produced from exergonic reactions? 7. What molecule does the cell use as an energy carrier? Draw its structure. 8. Why is it that this energy carrier is considered to be high energy containing phosphate? 9. Bond of this energy carrier of cells is broken through what?arrow_forwardA dichotomous key works by determining positive and negative reactions to different biochemicals. Why does this method allow us to identify one species of organism from another? – for this question, do not describe the dichotomous key procedure, think about why it works, what are biochemical reactions based on? Think enzymatic pathways, what are enzymes, what are they a reflection of? Keep the answer between 2-3 sentencesarrow_forwardIn the meantime, here's a sneak peak: you will be investigating the enzyme called catalase. Write a paragraph or more to introduce the enzyme catalase. Include the following details in your introduction: • the substrate and products of catalase, • the type of reaction performed by catalase, • factors that could increase or decrease the activity of an enzyme like catalase, • how catalase is used by cells, • in what type of cells is catalase found, • an industrial use of catalase.arrow_forward
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