Phospholipid bilayer Samenvattingen, Notities en Examens

BIO-1402- CH. 22 the Origin and History of Life Questions and Answers 100% Pass Cell Theory 1. All organisms are composed of cells 2. Cells are the smallest living things 3. Cells arise only from pre-existing cells What are the required minimal set of macromolecules protobionts must have? 1. Self- replicating lipid vesicles 2. Self-replicating genetic material. Plausible progression of Cells 1. Formation of organic molecules (spontaneous) 2. Formation of organic polymers 3. ...

PCOL355 Final Test Questions with Correct Answers Which of the following cells secrete anti-coronavirus antibodies? -Activated B cells -Antigen-presenting cells -T-helper cells -Cytotoxin T cells - Answer-Activated B cells PTX-loaded PEG-EB2 had a faster PTX release over Taxol. True/False - Answer-False Pfizer-BioNTech developed Comirnaty, and Moderna developed SPikevas, two widely used COVID-19 nanovaccines using micelles nanoparticles. True/False - Answer-False Centrifugation ...

IB Bio HL I Semester 1 Exam Review with Certified Solutions Outline the Cell Theory -All organisms are composed of one or more cells -Cells are the smallest unit of life -All cells come from pre-existing cells Discuss the evidence for Cell Theory -Robert Hooke uses microscope to observe living cells -Louis Pasteur performs chicken broth experiment to prove that cells come from pre-existing cells Outline the therapeutic uses of stem cells -Implanted stem cells to rebuild brain tis...

Liver cells have an especially large network of _______ because the liver removes waste products from the bloodstream smooth endoplasmic reticulum What is biased language excludes or stereotypes people on gender or other physical or mental traits What is formal English? uses full words, avoiding contractions. If one must use an acronym, it should be spelled out first. Uses an objective tone and avoids first- and second-person pronouns Formal language follows conventional rules and is u...

BIOL 1P91 – Final EXAM .OVER 280 QUESTIONS WITH VERIFIED CORRECT ANSWERS Holds the cell together and controls what goes in and out - ANSWER cell membrane separates cell contents from the surrounding environment - ANSWER plasma membrane uptake and export of ions and molecules, cell compartmentalization, protein storing, anchoring cytoskeleton, production of ATP and NADPH, cell signalling, cell and nuclear division, and adhesion of cells to each other and to the extracellular...

UIUC ANSC 221, Exam II Questions With Verified Answers Biological Membranes Framework of the membrane is the phospholipid bilayer Hydrophobic water fearing region, faces in Hydrophilic water living region, faces out Fluid-mosaic model membrane is considered a mosaic of lipid, protein, and carbohydrate molecules Integral/Intrinsic membrane proteins transmembrane and lipid-anchored proteins Transmembrane proteins One or more regions that are physically embedded in t...

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...

Stanley Miller's 1953 experiments demonstrated conclusively that...Answer - organic molecules can be synthesized abiotically under conditions that may have existed on early Earth. In a single molecule of water, the two hydrogen atoms are bonded to a single oxygen atom by...Answer - polar covalent bonds What do the four 'elements of life' -carbon, hydrogen, and nitrogen-have in common?Answer - They all have unpaired electrons in their valence shells. Water is able to form hydrogen ...

Viruses are CORRECT ANSWER obligate intracellular parachutes what do viruses not have CORRECT ANSWER organelles, cytoplasmic membrane, cytosol, can't carry out metabolic reaction, don't grow n size or respond to environment, cannot reproduce independantly virions CORRECT ANSWER when virus is outside of host -possess a protein coat called capsid -capsid surround and protects nucleic acid(viral genome) viral envelope CORRECT ANSWER -present on some animal viruses -phospholipid bilaye...

Phospholipid Bilayer Phospholipid - correct answer consists of a somewhat circular phosphate group head, and two long , fatty acid chain tails Hydrophilic Head - correct answer Its attracted to water and arranged to be closest to the water molecules Hydrophobic Tail - correct answer Are repelled by water and arranged to be farthest from water molecules Carbohydrate Chain - correct answer substance on the plasma membrane helps identify chemical signals from outside the cell and define c...