Phospholipid bilayer - Guides d'étude, Notes de cours & Résumés

Describe the chemical composition of biological membranes? Biological membranes are bilayers of phospholipids with associated proteins and carbohydrates. What can never be energetically favorable in a biological membrane and therefore will not occur spontaneously? the flip-flop of phospholipids to the opposite leaflet Let's suppose an insect, which doesn't maintain a constant body temperature, was exposed to a shift in temperature from 60°F to 80°F. Which of the following types of membrane c...

Cell component responsible for energy production; powerhouse of the cell Answer: Mitochondria QUESTION Organelle responsible for protein synthesis Answer: Ribosomes QUESTION Network of protein filaments that aid in intracellular support, cell movement, and moves organelles. Answer: Cytoskeleton QUESTION The basic unit of structure and function in all living things. Composed of plasma (cell membrane), cytoplasm, cytosol, nucleus, and cy...

The structure of the membrane is directly related to its? Ans: function Membranes Create ______ environments Ans: two : inside and out Membranes ultimately have to separate two ??? Ans: regions of water organelle membranes Ans: also separate their inner environment from the inside of the cell key property of water that influences the structure of membranes Ans: it's polar and partially changed and hydrophillic 2 Hydrophobic molecules can reorganize ____ Ans: water membrane lipids a...

Glycoproteins Ans: carbohydrate attatched to a protein (plays role in cell recognition as well as communication) carbohydrate Ans: long chains of sugars Glycolipids Ans: attached to lipid bilayer itself (plays role in cell recognition as will as communication) Phospholipid tails Ans: no polar, hydrophobic Phospholipid head Ans: polar, hydrophilic 2 peripheral protein Ans: (on outside) can release certain molecules cholesterol Ans: helps keep the rigidity, keeps things together ...

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BIOL 1201 - FINAL EXAM CUMULATIVE MATERIAL WITH COMPLETE SOLUTIONSBIOL 1201 - FINAL EXAM CUMULATIVE MATERIAL WITH COMPLETE SOLUTIONSBIOL 1201 - FINAL EXAM CUMULATIVE MATERIAL WITH COMPLETE SOLUTIONSThe sugar phosphate backbone of a DNA strand is held together with - ANSWER-Covalent Bonds The relative concentration of protons (H+) in an solution is characterized by - ANSWER-pH The internal portions of the membrane phospholipid bilayer is characterized by - ANSWER-Hydrophobic interactions ...

A&P 1 - Exam 1 - Chapters 1-3 Cumulative Review Questions and Answers | Latest Version | 2024/2025 | Graded A+ What is the primary function of the mitochondria in eukaryotic cells? To produce ATP through cellular respiration, providing energy for cellular activities. How does the structure of the plasma membrane contribute to its function? The plasma membrane's phospholipid bilayer and embedded proteins regulate the movement of substances in and out of the cell. What are ...