Phospholipi - Study guides, Class notes & Summaries

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BIO 101 EXAM QUESTIONS AND CORRECT DETAILED ANSWERS What makes the "head" of a phospholipid hydrophilic? A) The even distribution of electrons across the fatty acids makes the head polar. B) The uneven distribution of electrons across the fatty acids makes the head polar. C) The phosphate group carries a negative charge, making the head polar. D) The phosphate group carries a negative charge, making the head nonpolar - ANSWER C Which would most likely pass unaided through a pla...

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 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...

Phospholipid Bilayer Exam Questions And Answers...

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...

ATI TEAS 6 EXAM STUDY GUIDE 2023|2024 UPDATE Science CeLL Cell: basic organizational unit of all living things. One thing in common is they all have membranes (phospholipids). Cell structure organization: All cells contain DNA, and RNA & can synthesize proteins. Consists of nucleic acids, cytoplasm, and cell membrane. o Tissues: Cells that are grouped together o Organs: Tissues that are grouped together o Systems: Organs that are grouped together o Organism: A complete individual ...