Antiporters Study guides, Class notes & Summaries
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LIBERTY UNIVERSITY MSCI 660 WEEK 4 PRINCIPLES OF CELLULAR BIOLOGY(D03) QUIZ 2
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Quiz: Membrane Transport and Cell 
Compartmentalization/Protein Sorting 
Due Apr 10 at 11:59pm Points 125 Questions 50 
Time Limit 75 Minutes 
Instructions 
Attempt History 
Attempt Time Score 
LATEST Attempt 1 64 minutes 122.5 out of 125 
 Correct answers are hidden. 
Score for this quiz: 122.5 out of 125 
Submitted Apr 5 at 11:33am 
This attempt took 64 minutes. 
The quiz: 
Covers the Learn material from Module 3: Week 3 – Module 4: Week 4. 
Contains 50 multiple-choice questions. 
Is limi...
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PCAT Pearson Biology Section Exam 2023
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Cell Theory - ANSWER-Discovered in the 17th century 
1. All living things are composed of cells 
2. The cell is the basic unit of life 
3. The chemical reactions of life take place inside the cell 
4. Cells arise from only preexisting cells 
5. Cells carry genetic information in the form of DNA. This genetic material is passed from parent cell to daughter cell 
 
6 Kingdoms - ANSWER-Bacteria, Archaea, Protista, Fungi, Plantae, and Animalia 
 
Prokaryotic - ANSWER-"before nucleus", lacks a memb...
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EMC Exam 2 (click questions)100% Correct!!
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Membrane Transport 
What is the major difference between V-ATPase and F-ATPase? - ANSWERSV-ATPase uses ATP to pump hydrogen against the concentration gradient; F-ATPase uses hydrogen concentration gradient to make ATP 
 
Why can't H3O+ flow through an aquaporin channel? - ANSWERSH3O+ size and charge; positively charged Asn repel H3O+ 
 
How would F-ATPase be affected with H3O+ could flow through aquaporins? - ANSWERSChange H+ gradient, affecting function of F-ATPase and production of ATP 
 
How...
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EMC Exam 2 (click questions)100% Accurate!!
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EMC Exam 2 (click questions)100% Accurate! 
Membrane Transport 
What is the major difference between V-ATPase and F-ATPase? - ANSWERSV-ATPase uses ATP to pump hydrogen against the concentration gradient; F-ATPase uses hydrogen concentration gradient to make ATP 
 
Why can't H3O+ flow through an aquaporin channel? - ANSWERSH3O+ size and charge; positively charged Asn repel H3O+ 
 
How would F-ATPase be affected with H3O+ could flow through aquaporins? - ANSWERSChange H+ gradient, affecting funct...
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EMC Exam 2 (click questions)100% Correct!
- Exam (elaborations) • 4 pages • 2024
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Membrane Transport 
What is the major difference between V-ATPase and F-ATPase? - ANSWERSV-ATPase uses ATP to pump hydrogen against the concentration gradient; F-ATPase uses hydrogen concentration gradient to make ATP 
 
Why can't H3O+ flow through an aquaporin channel? - ANSWERSH3O+ size and charge; positively charged Asn repel H3O+ 
 
How would F-ATPase be affected with H3O+ could flow through aquaporins? - ANSWERSChange H+ gradient, affecting function of F-ATPase and production of ATP 
 
How...
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BIOCHEMISTRY EXAM 2 | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
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1 
BIOCHEMISTRY EXAM 2 | QUESTIONS & 
ANSWERS (VERIFIED) | LATEST UPDATE | 
GRADED A+ 
Covalent Catalysis 
Correct Answer: Active site contains a reactive group (Nucleophile) 
General Acid-Base Catalysis 
Correct Answer: Molecule (other than Water) acts as a proton donor or acceptor 
Metal Ion Catalysis 
Correct Answer: Metal ion serves as an electrophilic catalyst and stabilizes reaction 
intermediate 
Temperature 
Correct Answer: As temperature rises, reaction rate increases; loss of activ...
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Summary Exam for Biological foundations of mental health 2023
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Summary Exam for Biological 
foundations of mental health 2023 
Striatal Dopamine neurotransmission abnormalities in obesity and addiction - 
CORRECT ANSWER-Such persistent activation of the reward pathway occurs in the 
case of chronic drug abusers or even in individuals consuming unusually large quantity 
of food. 
To answer this question, scientists have quantified dopamine neurotransmission in the 
brains of addicted or obese individuals, using positron emission tomography-- PET. 
They...
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PCAT Pearson Biology Section Exam 2023
- Exam (elaborations) • 46 pages • 2023
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Cell Theory - ANSWER-Discovered in the 17th century 
1. All living things are composed of cells 
2. The cell is the basic unit of life 
3. The chemical reactions of life take place inside the cell 
4. Cells arise from only preexisting cells 
5. Cells carry genetic information in the form of DNA. This genetic material is passed from parent cell to daughter cell 
 
6 Kingdoms - ANSWER-Bacteria, Archaea, Protista, Fungi, Plantae, and Animalia 
 
Prokaryotic - ANSWER-"before nucleus", lacks a memb...
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276 FINAL Exam prep 100 Accurate
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276 FINAL Exam prep 100% Accurate!! 
The movement of substances from the nephron tubule back into the bloodstream is referred to as: 
 
nephron replacement. 
nephron recirculation. 
tubular reabsorption. 
tubular secretion. 
The movement of substances from the bloodstream into the tubular nephron is referred to as: 
 
tubular reabsorption. 
tubular secretion. 
nephron replacement. 
nephron recirculation. 
The process by which plasma minus protein passes from the glomerulus into the tubular neph...
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PCAT Study Guide Questions and answers with 100% Complete Solutions | verified &updated 2024
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PCAT Study Guide Questions and answers with 100% Complete Solutions | verified &updated 2024 
Three parts of interphase - G1: cell initiates interphase by synthesizing enzymes and structural proteins needed for growth and DNA synthesis 
S: synthesis stage; DNA replication occurs 
G2: cell prepares for mitosis (ex: assembles spindle fibers) 
symporters do what - more two or more ions or molecules in the same direction across the membrane 
antiporters do what - exchange one or more ions (or molecu...
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