Gated transport Study guides, Revision notes & Summaries

Bio 1201 exam 2 Gregg latest update graded A+ transport proteins are responsible for controlling passage across the membrane fluid mosaic model The membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids fatty acid tails nonpolar, hydrophobic fatty acid heads hydrophilic, polar periphial proteins bound to the surface of the membrane integral proteins penetrate the hydrophobic core (ones that span the membrane are transmembrane protiens How ...

Irrigation Exam 2 Practice Test Questions with Verified Answers Is surge irrigation combined with center pivot swing arms to achieve more even water distribution? False Can a farmer replace worn or damaged gaskets between sections of aluminum sprinkler pipes to minimize leaks? True Are gaskets used in 3-inch hand line sprinklers exclusively made from rubberized leather? False Does the lateral line transport water from the pump to the mainline? False Do the percentage of...

Biol 1201 Exam 2 Gregg Latest Update Already Passed Plasma membrane A selectively-permeable phospholipid bilayer forming the boundary of the cells. Hydrophilic heads and hydrophobic tails peripheral proteins Bound to the surface of the membrane Integral proteins penetrate the hydrophobic core Transport proteins Span membrane. Allow passage of hydrophilic substances functions of plasma membrane transport, enzymatic activity, signal transduction, cell-cell recognition, intercel...

Stahl’s PsychoPharm Exam 2 || With Questions & 100% Correct Answers Stahl’s PsychoPharm Exam 2 || With Questions & 100% Correct Answers 29-year-old patient is morbidly obese and reports that he is "addicted to food". Hunger circuitry is connected to reward circuitry via dopaminergic projections from the hypothalamus to the nucleus accumbens. A. True B. False - ANSWER - A. True Examples of neurotransmitters produced specifically as retrograde neurotransmitters (i.e., those that c...

Why is it so important to keep Ca2+ levels low inside the cell, and how is this accomplished? Ca+ is the most commonly used 2nd messenger. The intracellular conc. Is very low and the extracellular conc. Is several times larger. A rise in Ca leads to receptor activation -> kinases -> and the phos. Of targets. How are levels of Ca2+ increased inside cells? 1. Voltage gated Ca channels on pm. 2. Ligand gated channels like NMDA Rs, on pm. 3. IP3 & RYR receptors on ER, Ca release from ...

Which of the following is true concerning passive transport and active transport: - passive transport transfers molecules down an electrochemical gradient while active transport transfers molecules against an electrochemical gradient In a polarized cell, a barrier is created by a specific type of intercellular junction that maintains the separation of membrane proteins and between the apical and the basal sides of the cell. This barrier is called a: - tight junction What secondary structur...

TECHGRADES Biol 252 Test 1 questions and answers 100% verified.   3 characteristics of Neurons - correct answer. 1) excitability- respond to stimuli (environmental changes) 2) conductivity- respond to stimuli by producing electrical signals 3) secretion- end of nerve fiber- neurons secretes a neurotransmitter and stimulates next cell Soma - correct answer. cell body axon hillock - correct answer. -beginning of axon -trigger zone -where neuro...

ap chpt 11know fig 11.1 - correct answer 11.3 - correct answer 11.5 - correct answer The resting membrane potential is maintained by Na+-K+ pumps that actively transport ? into and ? out of the cell. The membrane is more permeable to ?. The concentration of ? is higher outside than inside the cell. The concentration of ? is higher inside than outside the cell. - correct answer 1. k+, na+ 2. k+ 3. Na+ 4. k+ Ions are unequally distributed across the plasma membrane of all cell...

Table of content. Chapter Pages (1) GENERAL PRINCIPLES OF PHARMACOLOGY Error! Bookmark not defined. PART I PHARMACOKINETICS 4 PART II PHARMACODYNAMICS 8 (2) AGENTS, CONTROLLING THE FUNCTIONS OF THE PERIPHERAL NERVOUS SYSTEM 14 PART I LOCAL ANESTHETICS 14 PART II CHOLINOMIMETIC DRUGS 19 PART III CHOLINORECEPTOR BLOCKING DRUGS 23 PART IV ADRENORECEPTOR ACTIVATING DRUGS 31 PART V ADRENORECEPTOR ANTAGONIST DRUGS 38 (3) AGENTS, CONTROLLING THE FUNCTIONS OF THE CENTRAL NERVOUS SYST...

Match the terms: A. Input B. Conductile C. Output 1. Axon 2. Axon Terminal 3. Dendrite and Cell body correct answers A3, B1, C2 Input: dendrite and cell body conductile: axon output: axon terminal Protein Synthesis in a neuron occurs in the a. cell body b. axon c. dendrite d. terminal correct answers a. cell body The output region of the site is a .. a. ligand gated channel b. neurotransmitter release c. protein synthesis d. voltage gated Na+ channel correc...