In this lesson our instructor talks about nucleic acids and proteins. She first talks about different types of nucleic acids. Then she discusses the concept of double helix, proteins, and polypeptide formation. Finally, she talks about protein formation, and protein structure. Four complete extra example videos round up this lesson.
acid (DNA) and ribonucleic acid (RNA) are polymers composed of
consist of a nitrogenous base, a pentose (5 carbon sugar) and a
phosphate group. The sugar found in RNA is ribose, the sugar found
in DNA is deoxyribose.
are two groups of nitrogenous bases: pyrimidines - cytosine (C),
thymine (T) and uracil (U) and purines adenine (A) and guanine
(G). RNA contains uracil whereas DNA contains thymine.
complementary strands of DNA pair up to form a double helix.
acids are the building blocks for proteins. Each has an asymmetric
carbon atom bonded to an amino group (NH2)
a carboxyl group (-COOH) a hydrogen atom and a side chain called an
acids join together through the formation of peptide bonds to form
polypeptides.The primary structure of a protein is the amino acid
sequence in its polypeptide chain.
secondary structure of a protein is a result of hydrogen bonding
between different regions of a polypeptide chain. Alpha helices and
beta pleated sheets are the two major types of secondary structure.
tertiary structure is the overall three dimensional shape of the
protein. Quaternary structure refers to the structure formed when
multiple polypeptide chains interact to form a single protein.
Nucleic Acids and Proteins
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
The book and CD package include three full length practice exams that are presented with all questions answered and explained. The author also presents detailed reviews of all test topics and includes multiple-choice and free-response questions with answers at the end of each topic's chapter.
This book has a great topic-by topic breakdown of the 14 must-know principles with sample questions and answers for each of the subjects. Laboratory Review includes a focused review of all 12 AP laboratory exercises. Included in this is 2 full length practice tests that stimulate the actual test along with answers and complete explanations.
This book includes a comprehensive biology test topic review, covering everything from photosynthesis to genetics to evolution. Cracking the AP Biology also includes testing strategies for the grid-in and essay section, great guidance on writing a high-scoring essay, and two full length practice exams with detailed explanations.