Hydrophilic Study guides, Class notes & Summaries

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...

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...

What are the disadvantages of Soft Lenses? - ANSWER-Doesn't correct irregular astigmatism, favors deposit formation Which test measures the quantity of tears? - ANSWER-The Schirmer test. What are good results for the Schirmer test? - ANSWER-15 mm in 5 minutes. What are dry eye results for the Schirmer test? - ANSWER-5-10 mm in 5 minutes. Neovascularization is mainly due to what? - ANSWER-Hypoxia, corneal edema, tight contact lens fit The Radii and Power of an average cornea - ANS...

ATI TEAS 7 Biology Review. a. TEMPERATURE HOMEOSTASIS ¾ skin is involved in temperature homeostasis through sweat glands a. Controlled by negative feedback system a. Receptor i. Sensory cells in dermis of skin b. Control center i. Hypothalamus c. Effector i. Sweat glands, blood vessels, and muscles (shivering) ii. Evaporation of sweat cools body iii. Vasodilation of blood vessels release heat into environment to lower body temperature SEBACEOUS VS SWEAT GLANDS a. Both exocrine gl...

The atomic number of an element is the number of correct answers protons in the nucleus In a covalent bond, atoms correct answers share electrons In living cells, a process by which cells break polymers down into monomers with the addition of water is correct answers hydrolysis The primary building block of proteins correct answers amino acid cohesion is a property of water in which water molecules tend to stick together correct answers true Carbohydrate polymer limited to two mon...

BIOL 1P91 Final Exam Questions And Verified Solutions What are the 3 general components that make up an atom? - ANS Protons Neutrons Electrons The sum of the atomic number and the number of neutrons is: - ANS A (the atomic number) Mass Number Which of the following is/ are a polar bond? A) O-H bond in water * B) C-O in CO2 C) N-N in N2 D) all of the above E) two of the above - ANS A) O-H bond in water A substance dissolvable in oil is said to be: - ANS Hydrophobic...

Hard Water Minerals that lessen the ability of the shampoo to lather Purified water/Deionized water Main ingredient in shampoo Surfactant has two ends the HYDROPHILIC HEAD and LIPOPHILIC TAIL Hydrophilic Head Attracted to water Lipophilic Tail Attracted to dirts and oils Acid Balanced Shampoo pH of 4.5-5.5

describe the basic functions all life forms must accomplish -response to environmental stimuli & maintain homeostasis -uptake and processing of nutrients/energy -regulation -growth and reproduction compare and contrast eukaryotic and prokaryotic cell types Prokaryotes: -circular chromosomes, no nucleus, no organelles, 3.5 bya -DNA concentrated in nucleoid Eukaryotes: -linear chromosomes, nucleus, organelles, 1.5 bya -DNA concentrated in nucleus Both: -cellular function takes p...

TEST BANK PATHOPHYSIOLOGY 9TH EDITION MCCANCE TEST BANK . Chapter 1: Cellular Biology MULTIPLE CHOICE 1. Which statement best describes the cellular function of metabolic absorption? a. Cells can produce proteins. c. Cells can take in and use nutrients. b. Cells can secrete digestive enzymes. d. Cells can synthesize fats. ANS: C In metabolic absorption, all cells take in and use nutrients and other substances from their surroundings. The remaining options are not inclusive in their descriptions ...

BIOL 1406 Lab Midterm Exam Questions and Answers 100% Pass What is the stinging organelle that assists it in capturing large prey? Trichocyst Which species of amoeba did you observe under the microscope? Amoeba proteus Which experimental group receives the treatment? Control group A solution that tends to release protons is An acid The portion of a phospholipid that contains the phosphate group has one or more electrical charges. That makes this region of the molecule Hydrophi...