Alpha helices - Study guides, Class notes & Summaries

Which of the following is true concerning passive transport and active transport: - passive transport transfers molecules down an electrochemical gradient while active transport transfers molecules against an electrochemical gradient In a polarized cell, a barrier is created by a specific type of intercellular junction that maintains the separation of membrane proteins and between the apical and the basal sides of the cell. This barrier is called a: - tight junction What secondary structur...

BIO 161 midterm 1 cal poly Latest Version 100% Pass Question 1: What are the fundamental elements found in the molecular structure of proteins? - a. oxygen, carbon, nitrogen, hydrogen, amino acid side chain - b. nitrogen, oxygen, carbon, hydrogen, amino acid backbone - c. nitrogen, hydrogen, carbon, oxygen, amino acid ring - d. hydrogen, oxygen, carbon, nitrogen, amino acid group - Answer: a. oxygen, carbon, nitrogen, hydrogen, amino acid side chain Explanation: Proteins are com...

BIOL 111 FINAL TAMU – FLETCHER QUESTIONS AND ANSWERS 100% SOLVED The element present in all organic molecules is Carbon Cell membranes have distinct inside and outside faces. Which of the following statements is the most likely explanation for the membrane's asymmetrical nature? The two sides of a cell membrane face different environments and carry out different functions Which of the following statements is true about buffer solutions? They maintain a relatively constant pH when either aci...

BPK 110 Final Review Questions and Answers 2024 with complete solution Differentiate between complete and incomplete proteins and provide typical sources of each. - Answer ️️ -Complete proteins: Have all nine essential amino acids. Ex. Animal sources of protein (milk, meat) Incomplete proteins: Lack one or more of the essential amino acids. Ex. Plant sources of proteins (legumes) Describe the molecular structure of proteins and the four levels of protein structure. Which bonds are es...

If a thin lens with an index of 1.5 has a dioptric power of +4.00 in air, what is its power if placed in water? A) +1.18 diopters B) +11.76 diopters C) +1.36 diopters D) +4.00 diopters - ANSWER C) +1.36 diopters Alpha helices and beta sheets are considered which level of protein structure? A) Quaternary B) Primary C) Tertiary D) Secondary - ANSWER D) Secondary An amphipathic molecule will react in what manner when exposed to water? A) It will completely dissolve ...

MSAP Week 4- Respiratory System and Renal System Exam Questions and Answers 100% Pass What type of protein is collagen? Hemoglobin? - Fibrous protein (insoluble) Globular (soluble): - have polar side chains on surface - nonpolar side chains in interior Porphyrin ring is assembled by? What is its structure? - Cyclic rings with 4 Nitrogens interiorly covalently bound to Fe2+ (ferrous). Formed of amino acids and TCA cycle intermediates. Functions of Hemeproteins? - any cell that has mitoc...

What six functions characterize all living things? Organization Responsiveness Growth Reproduction Movement Metabolism/Excretion What is homeostasis? A steady state of internal environment of an organism. What is the difference between positive and negative feedback? Give an example of each. Positive feedback enhances change (labor contractions during birth, blood clotting, etc...) Negative feedback resists change (body temperature, insulin, cortisol, etc...) List...

Optometry Admission Test Questions and Answers Which of the following is true of the gastrula? - Answer-It has three germ layers (ectoderm, mesoderm, and endoderm) Carbon is released in the form of CO2 through? - Answer-Respiration, burning, and decomposition Two species of finches are able to utilize the same food supply, but their beaks are different. They are able to coexist on an island because of? - Answer-Character displacement Character displacement - Answer-Although similar, sp...

Bioinformatics Final Exam || Complete Questions & 100% Accurate Solutions Bioinformatics Final Exam || Complete Questions & 100% Accurate Solutions Bioinformatics - ANSWER - The technology that uses computers for storage, retrieval, manipulation and distribution of information related to biological macromolecules. (DNA, RNA, proteins, metabolites, lipids.) Who is the mother of bioinformatics? - ANSWER - Margaret Dayhoff What are the three main areas of bioinformatics? - ANSWER - - Mole...

OPTOPREP NBEO EXAM 2024 WITH 100% CORRECT ANSWERS If a thin lens with an index of 1.5 has a dioptric power of +4.00 in air, what is its power if placed in water? A) +1.18 diopters B) +11.76 diopters C) +1.36 diopters D) +4.00 diopters - correct answer C) +1.36 diopters Alpha helices and beta sheets are considered which level of protein structure? A) Quaternary B) Primary C) Tertiary D) Secondary - correct answer D) Secondary An amphipathic molecule will react in what manne...