Study Guide for Campbell Biology
Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 5, Problem 19TYK
Summary Introduction

Introduction: A biomolecule is defined as the molecule and ions present in organisms. Biological molecules are necessary for carrying biological processes such as morphogenesis, cell division or development. There are four major classes of biological macromolecules, namely lipids, carbohydrates, nucleic acids, and proteins.

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(a) What type of linkage is present in disaccharides?(b) Write one source and deficiency disease of vitamin B12.(c) Write the difference between DNA and RNA.
Which statement accurately describes the differences between RNA and DNA? RNA always folds into a single helix while DNA always folds into a double helix. RNA contains the nitrogenous base thymine, while DNA contains the nitrogenous base uracil. RNA contains pyrimidine bases, while DNA contains purine bases. The nucleotides in DNA contain one phosphate group while those in RNA contain two phosphate groups. The sugar in DNA contains one less hydroxyl group than the sugar in RNA.
Which statement describes the bases pairing in nucleic acids? Purine bases always pair with other purine bases Purine bases can only pair with pyrimidine bases Adenine cannot pair with either uracil or thymine Hydrogen bonding can only occur between the pyrimidine bases Guanine is always paired with adenine

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Study Guide for Campbell Biology

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