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Phospholipid Bilayer Exam Questions And Answers @ 2024...

Phospholipid Bilayer Exam 2 Questions And Correct Answers...

NAS 2 Challenge Exam (2023/2024) 100+ Questions and Verified Answers| Already Graded A Q: Define organic compounds and list the 4 major groups of organic compounds in the body Answer: All organic compounds contain carbon and hydrogen. 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids Q: Define carbohydrates. Name the elements that make-up carbohydrates Answer: Sugars (saccharide) and starches that are formed by a 1:2:1 ratio of carbon (C), Hydrogen (H), and Oxygen (...

Phospholipid BilayerPhospholipid - correct answer consists of a somewhat circular phosphate group head, and two long , fatty acid chain tails Hydrophilic Head - correct answer Its attracted to water and arranged to be closest to the water molecules Hydrophobic Tail - correct answer Are repelled by water and arranged to be farthest from water molecules Carbohydrate Chain - correct answer substance on the plasma membrane helps identify chemical signals from outside the cell and define cel...

What is the basic framework of biological membranes? Ans: The phospholipid bilayer What are the 3 components of the phospholipid bilayer? Ans: Phospholipids, proteins, carbohydrates How is the phospholipid bilayer divided? Ans: Into asymmetrical leaflets What does it mean for the membrane to be semifluid? Ans: Phospholipids move laterally and rotationally, but not in 3 dimensions (no ATP required) What does it mean for phospholipids to flip flop? Ans: Phospholipids turn upside down an...

Phospholipid Bilayer Exam Questions And Answers...

why are membranes called phospholipid bilayers? - Answer-phospholipids have hydrophilic head and hydrophobic tail, hydrophobic face inside of cell making 2 layers what is meant by fluid mosaic? - Answer-Mosaic of proteins drifting laterally in fluid bilayer of phospholipids how are membranes adjusted for different temperatures? - Answer-membrane fluidity adjusted by changing the ratio of unsaturated to saturated fatty acids how do the relative amounts of saturated and unsaturated fats chan...

Phospholipid Bilayer Ans: Double layer that separates internal and external environments of the cell Amphipathic Ans: Molecules with hydrophilic heads and hydrophobic tails Integral Proteins Ans: Proteins that penetrate the hydrophobic interior of the lipid bilayer Peripheral Proteins Ans: Proteins loosely bound to the surface of the membrane Transmembrane Proteins Ans: Proteins that span the membrane 2 Six Major Functions of Membrane Proteins Ans: Transport, enzymatic activity, sign...

Homeostasis Ans: The process of maintaining balance in an organisms internal environment 1. Separates inside of cell from outside of cell 2. Controls the substances that leave and enter the cell Ans: 2 cell membrane functions Their cell membrane allows nutrients to come inside and allows waste to leave Ans: How do cells maintain homeostasis? Phospholipid Ans: A molecule with a glycerol backbone, 2 fatty acid chains, and a phosphate group A glycerol backbone, 2 fatty acid chains, and a p...

Cell membrane Ans: Flexible and allows a unicellular organism to move Homeostasis Ans: Balanced internal condition of cells Equilibrium Ans: (Homeostasis) maintained by plasma membrane controlling what enters and leaves cell Functions of plasma membrane Ans: Protective barrier, regulates transport in ad out of cell, allows cell recognition, provides anchoring sites for filaments of cytoskeleton, provides binding site for enzymes, contains cytoplasm Phospholipids 2 Ans: Make up ce...