BIOLOGY: CONCEPTS AND INVESTIGATIONS
BIOLOGY: CONCEPTS AND INVESTIGATIONS
4th Edition
ISBN: 9781260536706
Author: Hoefnagels
Publisher: MCG
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Chapter 4, Problem 3PIT
Summary Introduction

To add:

The terms substrate, active site, and activation energy to the concept map.

Concept introduction:

The enzyme is a proteinaceous molecule that acts as a catalyst inside the living organisms. The enzymes speed up the chemical reaction without being affected by reactions. The enzyme allows the chemical reaction to occur in mild condition. Enzyme neither affects the reaction nor affect the product formation.

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3. Distinguish enzymes and subtrates, describe the mechanism enzymes action in relation to energy of activation and active site.
1. a) Fill in the blanks: a ____________ reaction is one that requires energy input, whereas a spontaneous reaction is one that _____________ energy. A spontaneous reaction is also called an ___________ reaction, whereas an endergonic reaction requires energy input.  b) Briefly, why do living cells and organisms require an input of energy? c) How do animals like humans get their energy if they cannot obtain it directly from the sun like photosynthetic organisms? How do bacteria obtain energy?  d) Chemical energy is the form of energy we will discuss. Where is the chemical energy stored in a molecule of glucose?
9) The sum of all chemical reactions in your body defines: a) anabolism b) metabolism c) catabolism d) Cellular Respiration e) Biosynthesis10) If in a bacterial growth medium waste product accumulates than the bacterial growth stage will be called: a) Death b) Convalescence c) Lag phase d) Log e) Stationary

Chapter 4 Solutions

BIOLOGY: CONCEPTS AND INVESTIGATIONS

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Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY