Polypeptide Study guides, Class notes & Summaries

BSC 1005 Final Exam - Questions and Answers Under the biological species concept, what criterion is used to assign populations of organisms to the same biological species? being able to interbreed and produce fertile offspring Speciation requires ______. genetic isolation The wing of a penguin is ______ the wing of a butterfly. analogous to Homology is evidence of ______. Common ancestry Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping ...

Describe the role of a ribosome in the production of a polypeptide. /3 - Correct answer1. mRNA binds to ribosome; 2. Idea of TWO codons/binding sites; 3. tRNA with ANTICODONS binds; 4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 5. Moves along (mRNA to the next codon); Describe the structure of glycogen. /2 - Correct answer-1. Polysaccharide of α-glucose; OR polymer of α-glucose; 2. (Joined by) glycosidic bonds OR Branched structure; NHE3 ac...

AQA AS BIOLOGY Paper 2 Thursday 25 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you need extra space ...

ANATOMY AND PHYSIOLOGY TEST 1/2/3/4/5/6/7 QUESTIONS AND ANSWERS LATEST UPDATED 2023. How can such a weak bond like hydrogen bond work to make DNA such a stable molecule? - ANSWER hydrogen bonds bond DNA into its double-helix structure by holding together the base pairs in the middle; they cause molecules to fold and coil into precise threedimensional shapes which elements are found in organic molecules? - ANSWER carbon, hydrogen, and oxygen acid - ANSWER proton donor base - ANSWER proton ac...

AP Biology [Practice AP Exam] Questions and Answers (Graded A) [C] They Include compartments where hydrogen ions are concentrated. [1] Which of the following is true of both mitochondria and chloroplasts? ----------------------------------------------- [A] They are found in the cells of eukaryotic autotrophs and heterotrophs. [B] They include stacks of membranes that absorb light. [C] They Include compartments where hydrogen ions are concentrated. [D] They produce sugars using energ...

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...

Proteins Correct Answer: Large molecules composed of one or more long chains of amino acids; structural components of body tissues such as muscle, hair, etc., and as enzymes and antibodies. Lipids Correct Answer: Any of a class of organic compounds that are fatty acids, or their derivatives, and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids. Carbohydrates Correct Answer: Biological molecules made of carbon, hydrogen, and oxyg...

A spiral shape constituting one form of the secondary structure of proteins, arising from a specific hydrogen-bonding structure. - correct answer alpha helix One form of the secondary structure of proteins in which the polypeptide chain folds back and forth, or where two regions of the chain lie parallel to each other and are held together by hydrogen bonds. - correct answer beta sheet In a polypeptide chain, the first amino acid has an exposed _______ - correct answer amino group ...

AP Biology [Practice AP Exam] Questions with Verified Solutions [8] Cells that make up salivary glands would be expected to contain a relatively large amount of: ----------------------------------------------- [A] smooth endoplasmic reticulum [B] rough endoplasmic reticulum [C] genetic material [D] lipids [E] peroxisomes [B] rough endoplasmic reticulum [9] Which of the following characteristics distinguishes prokaryotic organisms from eukaryotic organisms? ----------...

100 Biochemistry Exam 1 Questions with correct answers. Graded A Document Content and Description Below 100 Biochemistry Exam 1 Questions with correct answers Which of the following is found in RNA but not DNA A) Uracil B) Guanine C) Deoxyribose D) Phosphate E) Adenine >>>>Uracil Which of the fo llowing amino acids exhibits significant ultraviolet absorption above 250 nm? A) Alanine B) Tyrosine C) Methonine D) Glycine E) All of the above >>>>Tyrosine Collagen fibers hav...