Amphipathic molecules - Study guides, Class notes & Summaries
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cbns 101 midterm 1 test questions & answers 2024/2025
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cbns 101 midterm 1 test questions & answers 2024/2025 
 
 
cell membrane permeability - ANSWERSsmall nonpolar molecules/ oxygen, small polar molecules/water, no ions, no large polar molecules 
 
lipid bilayer properties - ANSWERScomposed of lipids and proteins. lipids are amphipathic making it energetically favorable to spontaneously assemble into bilayers in aqueous solutions/hydrophobic interior and hydrophilic heads interact with environment/leads to sealed rings of lipids 
 
three types of l...
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UNDERSTANDING PATHOPHYSIOLOGY 6th EDITION BY HUETHER TEST BANK WITH ALL COMPLETE CHAPTERS 2024.
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UNDERSTANDING 
PATHOPHYSIOLOGY 6th 
EDITION BY HUETHER 
TEST BANK WITH ALL 
COMPLETE CHAPTERS 
2024. 
Chapter 01: Cellular Biology 
Huether & McCance: Understanding Pathophysiology, 6th Edition 
MULTIPLE CHOICE 
1. A student is observing a cell under the microscope. It is observed to have supercoiled DNA 
with histones. Which of the following would also be observed by the student? 
a. A single circular chromosome 
b. A nucleus 
c. Free-floating nuclear material 
d. No organelles 
ANS: B 
The cel...
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Biology 320 Exam 1 questions and answers
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Dehydration 
Small molecules combine to form larger ones. 
 
For example: sugar monomers combine to form starch polymers 
 
 
 
Hydrolysis 
One larger molecule is split by the addition of H+ and OH- (from water) to the components 
 
 
 
Polymers 
large chains of identical molecular units strung together 
 
 
 
Monomers 
the units that serve as the building blocks of polymers 
 
 
 
Another name for a dehydration reaction is... 
condensation reaction 
 
 
 
Cells contain ___ major families of sma...
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Biology 1001 MUN Section 3 Questions and Answers Rated A+
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Biology 1001 MUN Section 3 Questions 
 
and Answers Rated A+ 
 
**1. What is the role of the plasma membrane in a cell?** 
- The plasma membrane acts as the outer living layer of each cell, serving as a gatekeeper 
that separates the external environment from the cell's interior. 
 
**2. What does the term "amphipathic" refer to?** 
- It describes molecules that have both hydrophilic (water-attracting) and hydrophobic 
(water-repelling) components. 
 
**3. What factors influence membrane fl...
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Bio 210 Trident Tech Final Exam Graded A 2024
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Anatomy - studies the form and structure of the body 
 
Physiology - examines how the body func ons 
 
cytology - study of body cells and their internal structure 
 
Pathophysiology - relationship between the func on of an organ system and disease or injury to the system 
 
Characteristics That Describe Living Things - organization, metabolism, growth and development, responsiveness, regulation, reproduction 
 
Muscular System - -Locomotion 
-Heat production 
 
(Muscles,Tendons) 
 
endocrine sys...
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BIOL 1P91 Final Exam Real Questions With Answers
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BIOL 1P91 Final Exam Real 
Questions With Answers 
What are the 3 general components that make up an atom? - 
ANSWER Protons 
Neutrons 
Electrons 
The sum of the atomic number and the number of neutrons is: - 
ANSWER 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 - ANSWER A) O-H bond in water 
A substance dissolvable in oil is said to be: - ANSWER 
Hydrophobic 
-...
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BIO 280 Test 1 Questions And Answers With Verified Tests
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_______ are the prominent macromolecules in cells - Proteins 
________ _________ - compounds containing both carbon and hydrogen atoms - Organic 
chemicals 
__________ molecules (e.g. soap, _phospholipids_) have both hydrophobic and hydrophilic properties. - 
Amphipathic 
A ________ fatty acid forms a triglyceride whose straight chains pack together to form solid fats. - 
Saturated 
A compound microscope used the total magnification of the ______ lens and the _____ lens.w - 
Ocular, objective 
A...
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BIOL 1P91 Final Exam Q&A
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What are the 3 general components that make up an atom? - Answer- Protons 
Neutrons 
Electrons 
 
The sum of the atomic number and the number of neutrons is: - Answer- 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 - Answer- A) O-H bond in water 
 
A substance dissolvable in oil is said to be: - Answer- Hydrophobic 
- since oil is hydrophobic, it will dissolve hydr...
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UWRF bio 240 Final Exam Study Guide Questions and Answers 2024 Correctly done
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The central dogma of molecular biology refers to transcription and translation. Transcription completes 
the process using DNA's to make_____whereas translation is using_____to make proteins. - 
RNA's, RNA's 
Cell membrane is formed by two layers of phospholipids. Therefore, the thickness of cell membrane is 
within the size range of - Macromolecules 
most elements are neutral because they have equal number of electrons and protons. Normal carbon 
12C, has 6 electrons, 6 proton, and 6 neutron...
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Biochemistry FAU Haces Exam 1 Questions and Answers 100% Verified Solutions Graded A 2024-2025
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intermolecular forces - forces between molecules 
EX: HCl-HCl 
 
intramolecular forces - hold atoms together in a molecule 
Ex: H-Cl 
 
Types of intramolecular forces - 1. Ionic 
2. Covalent 
 - Polar covalent 
 - nonpolar covalent 
 
nonpolar covalent bond - bond between atoms with same electronegativity 
 
polar covalent bond - bond with unequal sharing of electrons 
 
the lower the pka the - stronger the acid 
 
Buffers are ___ - solutions that resist changes in pH when strong acids or bases ...
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