Phospholipid bilayer Study guides, Revision notes & Summaries

(from the Greek, meaning cell-eating) involves the formation of an enormous membrane vesicle called a phagosome, or phagocytic vacuole, which engulfs a large particle such as a bacterium. *Only certain kinds of cells can carry out phagocytosis. - Phagocytosis 1. What is the difference between potential and kinetic energy? - -Kinetic energy is energy associated with movement, such as the movement of a baseball bat from one location to another. By comparison, potential energy is the energy th...

-minuscule, acellular infectious agents carrying DNA or RNA -obligate intracellular parasites CORRECT ANSWER viruses F CORRECT ANSWER T/F viruses have cytoplasmic membranes, cytosol, and organelles virons CORRECT ANSWER when viruses are outside their host they are called what? - possess a protein coat (capsid) that surrounds and protects the nucleic acid (viral genome) CORRECT ANSWER what is the structure of a virus? -shed their protein capsids -exist as naked nucleic acid CORRECT...

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...

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 ...

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...

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...

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 ...

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...

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...

AP Bio FRQs Latest Version 2024/2025 Graded A+ Based on the model, explain whether the molecules shown crossing the membrane require energy to do so. The response indicates that energy is not required for the substances to cross the membrane because the substances are being passively transported from a region of higher concentration to a region of lower concentration. Depending on the organism, the optimal pH for enolase to catalyze its reaction is between 6.5 and 8.0. Describe how ...