Plasmodesmata - Study guides, Class notes & Summaries

bio 181 chapter 11 GCUquorum sensing - correct answer a concentration of signaling molecules allows bacteria to sense local population density in this process signaling molecules - correct answer cells in a multicellular organism communicate via local signaling - correct answer animal cells may communicate by direct contact; paracrine cell junctions - correct answer in plant and animal cells that directly connect the cytoplasm of adjacent cells paracrine signaling - correct answer se...

Cell Signaling Pathway Correct Answer: "RaceCAR" - Reception of signaling molecule (ligand) to specfiic receptor - protein-to-protein Communication (transduction); ex: receptor-to-enzyme, kinase-totarget -signal Amplification typically with second messengers (cAMP, etc) -sgnal response nuances: tissue/cell-type specific responses, signal crosstalk Direct Signaling Correct Answer: communication between adjacent cells. - plasmodesmata (plants) - gap junction (animals) Autocrine Si...

Bio 101 EXAM PRETEST QUESTIONS WITH VERIFIED ANSWERS LATEST UPDATE Which type of protein would more likely be able to function as a channel through the plasma membrane - ANSWER integral both carrier and ________ proteins are involved in passive transport of molecules through the cell membrane. - ANSWER channel which type of protein binds a specific molecule based upon shape, bringing about a change in shape that causes a cellular response? insulin is a type of hormone that bind...

A bilayer with a short and unsaturated hydrocarbon tail has what permeability and what fluidity? - ️️High fluidity and high permeability A general function of all cellular membranes is to - ️️Regulate which materials can enter or leave the cell. A molecule that binds to the particular three-dimensional structure of a receptor site is known as a - ️️Ligand. A prokaryotic cell lacks a _____ and a _____ . - ️️nucleus; membrane-bound organelles. A protein kinase Cascade can ampli...

An antigen can induce an immune response in a host organism. Antigens are targeted by antibodies that are produced by the organism's immune system in response to contact with the antigen. Antibodies are specific to antigens. Many different cell types are involved in immune responses. Which of the following best describes the role of cell-to-cell communication during a response to an invasion of antigens? A Chemicals that are secreted from antigen-presenting cells then activate helper T cells...

Biology 115 WVU Exam 2 Questions and Answers Already Passed Select all that are components of cell theory -Each cell can regulate its internal conditions (homeostasis) -All living things are made from one or more cells -Homeostasis at the level of the tissue, organ, organ system and organism reflects the combined and coordinated actions of many cells -The cell is the basic unit of life -Cells are produced directly from the growth and division of other cells In order to carry out t...

BSC 1010- Unit 2 exam review Brooks With 100% Verified Answers What does an animal cell have? (some things) - answerEukaryote HAVE: Centrioles Lysosomes Centrosomes Which ones of these includes flagella and cilia? A) Intermediate filament B) microtubules C) microfilaments - answermicrotubules What does cytology mean? - answerCyto- Cell ology- the study of / the study of cells What did Robert Hooke do? - answer- He is the scientist who made his own light microscope to look at sampl...

Bio 101 EXAM PRETEST QUESTIONS WITH VERIFIED ANSWERS LATEST UPDATE Which type of protein would more likely be able to function as a channel through the plasma membrane - ANSWER integral both carrier and ________ proteins are involved in passive transport of molecules through the cell membrane. - ANSWER channel which type of protein binds a specific molecule based upon shape, bringing about a change in shape that causes a cellular response? insulin is a type of hormone that bind...

which of the following organelles is not surrounded by a membrane correct answer: ribosomes the main structural component of a plant cell wall is correct answer: cellulose the stack of thylakoids labeled A in this figure is called correct answer: granum without tight junctions in certain tissues correct answer: fluids may leak out past the barrier the junction would create carrie would like to observe the cilia on the surface of a live paramecium-- a single celled organism. the b...

Bio 101 EXAM PRETEST QUESTIONS WITH VERIFIED ANSWERS LATEST UPDATE Which type of protein would more likely be able to function as a channel through the plasma membrane - ANSWER integral both carrier and ________ proteins are involved in passive transport of molecules through the cell membrane. - ANSWER channel which type of protein binds a specific molecule based upon shape, bringing about a change in shape that causes a cellular response? insulin is a type of hormone that bind...