Concentration gradients Study guides, Revision notes & Summaries

Compartmentalization correct answers The segregation of functions into different compartments; in the cell, increases the efficiency of chemical reactions Lipid correct answers Any organic molecule that is poorly soluble or virtually insoluble in water but is soluble in nonpolar organic solvents; make up the membranes of cells Membrane correct answers Made of either phospholipids or phospholipids and sterols; often bilayers with polar head group facing outside from hydrophobic tails Per...

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...

GMS-6440 Medical Physiology Exam 1 Questions With 100% Correct Answers 2024 What chemical component of the plasma membrane prevents ions from readily and freely moving across the membrane? - answerLipids (phospholipids) Where is the concentration of [K+] greater? - answerIn the cytoplasm Across a cell's plasma membrane, movemen of water is a ___________ event. - answerPassive through a channel. Where is the concentration of [Na+] greater? - answerIn the extracellular fluid. For a neutra...

Biology Lecture Notes FINAL END OF YEAR 2023 (STEMer’s guide) 2024 Lecture (3) Resting potential – Action potential 2 | P a g e ION PUMP AND ION CHANNELS ESTABLISH THE RESTING POTENTIAL OF A NEURON As you know, ions are unequally distributed between the interior of cells and the fluid that 3 | P a g e surrounds them. As a result, the inside of a cell is negatively charged relative to the outside. Because the attraction of opposite charges across the plasma membrane is a source of p...

Biology Lecture Notes (STEMer’s guide) 2024 Lecture (3) Resting potential – Action potential Mr. Youssef Nagah Biology Lecture Notes Y. Nagah 2 | P a g e Ion pump and ion channels establish the resting potential of a neuron As you know, ions are unequally distributed between the interior of cells and the fluid that surrounds them. As a result, the inside of a cell is negatively charged relative to the outside. Because the attraction of opposite charges across the plasma membrane is...

QBM Final Exam Questions And Answers With Complete Solutions What is the best representation of DNA/protein if you could see it? - answerMolecular surface model OSHA - answerOccupational Safety and Health Association - Must inform employees of potential hazards MSDS - answerMaterial Safety Data Sheet - Lists chemical's physical and chemical properties, toxic, carcinogenic - Describes proper handling Biosafety levels - answerBSL-1 = minimal hazards BSL-2 =potential hazardous organisms,...

CN I - Olfactory nerve, Sensory of smell CN II - Optic nerve, Sensory for Vision CN III - Oculomotor nerve, Motor to muscles that move eyeball, constricts pupil CN IV - Trochlear nerve, Motor to muscle that move eyeball CN V - Trigeminal nerve, Sensory to face, motor to muscles of mastication CN VI - Abducens nerve, Motor to muscles that eyeball CN VII - Facial nerve, Motor to muscles of face expression, controls tears and salivation, sensory for taste CN VIII - Vestibulocoh...

cell theory - ️️- all living things are composed of cells - the cell is the smallest unit of life - cells only arise from pre-existing cells challenges to the cell theory - ️️- *striated muscle* challenges the idea that a cell has one nucleus - *giant algae* challenges the idea that cells must be simple in structure & small in size - *aseptate fungal hyphae* challenges the idea that a cell is a single unit functions of life - ️️- metabolism - response - homeostasis - gro...

B-lactam resistance - Lactamases - enzymes that cleave beta lactam structure usually between carbon and nitrogen - makes it no longer a structural mimic and transpeptidase keeps cross-linking peptide side chains Antimicrobial Agents - Agents that kill microorganisms or inhibit their growth -cidal agents kill -static agents inhibit growth Household cleaners are disinfectants 14 out of 20 burn patients get pseudomonas infections from stainless steel tub cleaned with a quat.. why? - Quats d...

A&P 1 - Exam 1 - Chapters 1-3 Cumulative Review Questions and Answers | Latest Version | 2024/2025 | Graded A+ What is the primary function of the mitochondria in eukaryotic cells? To produce ATP through cellular respiration, providing energy for cellular activities. How does the structure of the plasma membrane contribute to its function? The plasma membrane's phospholipid bilayer and embedded proteins regulate the movement of substances in and out of the cell. What are ...