Classical pathway Study guides, Class notes & Summaries

Complements circulate freely in blood plasma. True or False? - True Name the three ways complements can be activated by - Classical pathway, alternative pathway, and lectin pathway. The lectin pathway occurs spontaneously. True or False? - False; it has to do with the cell wall polysaccharides of bacteria and fungi The classical pathway refers to the antigen-antibody complex. True or False? - True. Opsonization - makes pathogen "tasty" for phagocytic cells like macrophages and neutroph...

Which of the following is not attributed to cytokines? correct answer: Stimulates the classical complement pathway Which two organs are considered the primary lymphoid organs in which immunocompetent cells originate and mature? correct answer: Thymus and bone marrow What type(s) of B cells are formed after antigen stimulation? correct answer: Plasma cells and memory cells What is the process by which phagocytic cells are attracted to a substance such as a bacterial peptide? correct a...

Roles of complement system correct answers - direct lysis of cells, bacteria and enveloped viruses -assist with opsonization to facilitate phagocytosis -produce peptide fragment split products which can mediate inflammatory and immune responses classical pathway correct answers -a series of proteins called factors amplifies the immune response -factors circulate in inactive forms -upon activation they attach in an exact sequence CP recognition correct answers (C1= C1q-C1r-C1s) CP en...

Most important phagocytic cell found in the bloodstream correct answers polymorphonuclear cell (PMN) Molecules found on human cells that can bind to molecules from infectious agent: correct answers pathogen recognition receptors process whereby molecules enhance the binding of bacteria to WBC correct answers opsonization neutrophils contribute to inflammation by correct answers degranulating the activation of the classical complement pathway begins with the recognition of _________ b...

Eukaryotic cells correct answers Consists of 3 general components: plasma membrane, cytoplasm and intracellular organelles Nucleolus correct answers Small, dense structure composed of RNA; most of the cellular DNA Histones correct answers DNA-binding proteins that help compact and fold DNA into chromosomes Passive Transport correct answers The movement of materials through a cell membrane without using energy. Occurs by osmotic pressure. Active Transport correct answers Energy-requir...

If the dilution is 1:100, and the average platelet count from both sides of the hemacytometer counting chamber in 2 mm2 is 68, what is the calculated platelet count? A. 680,000/mm3 B. 6,800/mm3 C. 68,000/mm3 D. 680/mm3 E. 34,000/mm3 - ANSWER-C; A simple way to calculate platelet counts on the hemacytometer is to multiply the average platelet count between the two sides of the chamber by 1,000. In this case 68 x 1,000 = 68,000 platelets. The longer derivation is as follows: The standard ...

______________, _______________, _____________ and ______________ activate classical complement pathway correct answers bacteria, enveloped viruses, tumor cells and foreign cells ______________ ____________ ________ are factors that prevent complement pathways from spontaneously activating and help the reaction to stop once it is not needed anymore. correct answers complement inhibitor proteins Defintion: Classical Complement Pathway correct answers 2 molecules of IgG or 1 molecule of IgM ...

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ZOO 4234 Parasitology Exam 1 Questions and Answers Latest Updated 2024 (Verified). Which of the following is not associated with natural killer cells? a. perforins b. apoptosis c. granzymes d. phagocytosis 2) Which of the following is not an aspect of adaptive immunity? a. memory b. nonself recognition c. antigen-specific d. localized response 3) Which of the following is not associated with cytotoxic T cells? a. T-cell receptor b. kill infected cells c. B-cell receptor d. CD8 rece...

BIOL 4220 Exam 3 Questions And Answers All Inclusive What class of neurotransmitter does dopamine, norepinephrine and epinephrine belong to? a. catecholamine b. non-classical neurotransmitter. c. neuropeptide. d. cholinergic neurotransmitter. e. amino acid neurotransmitter. - ANS A. Catecholamine What is the cell origin of the nigrostriatal system? a. VTA (ventral tegmental area). b. substantia nigra c. nucleus accumbens. d. septal nucleus. e. striatum. - ANS B. Substantia Nigr...