Selective permeability - Study guides, Class notes & Summaries

HIV EIA (3rd generation immunoassay) - can use urine, saliva, or serum (most accurate), need to wait until 12 weeks post exposure to see antibodies, >99% accurate 4th generation immunoassay- "gold standard" measures P24 antigen can test 10 days post exposure Mast cell - Cellular bags of granules located in loose connective tisssue close to blood vessels. Activation initiates inflammatory process. Histamine - Causes vasodilation, increases vascular permeability, increases blood flow...

Microbiology Straighterline (Quizzes) | Latest Update | 2024/2025 | Graded A+ What is the primary function of the cell membrane in bacteria? A) DNA replication B) Energy production C) Selective permeability D) Protein synthesis C) Selective permeability Which of the following structures is found in all bacteria? A) Nucleus 2 B) Mitochondria C) Cell wall D) Ribosomes D) Ribosomes What is the main purpose of the Gram stain in microbiology? A) To dete...

AP Biology Questions and Answers (Graded A) The resting membrane potential depends on which of the following? I. Active transport II. Selective permeability III. Differential distribution of ions across the axonal membrane A. III only B. I and II only C. II and III only D. I, II, and III D The resting potential depends on active transport (the Na+K+-ATPase pump) and the selective permeability of the axon membrane to K+ than to Na+, which leads to a differential distribution of ...

Bio 104 Module 2 Questions and Answers Already Passed What specific type of protein in the plasma membrane is involved in cell signaling? Receptor proteins. What term describes the balance of molecules on either side of a cell membrane after diffusion? Equilibrium. What is the term for the cellular process that engulfs fluids from the surrounding environment? Pinocytosis. Which part of the cell membrane is primarily responsible for its selective permeability? Phospholipid ...

AP Biology Questions and Answers (Graded A) Resting membrane potential depends on which of the following(s)? I. Active transport II. Selective permeability III. Differential distribution of ions across the anxonal membrane All three. The resting potential depends on active transport (the Na+K+ATPase pump) and the selective permeability of the axon membrane to K+ than to Na+, which leads to a differential distribution of ions across the axonal membrane Mitosis The division of the moth...

CRSS 3500 FINAL EXAM QUESTIONS AND ANSWERS ALL CORRECT Four phases of herbicide action - Answer- 1. retention 2. absoprtion 3. movement to target site 4. inhibit biochemical reaction Selective vs non-selective herbicides - Answer- -selective: controls one species of plant without seriously affecting the growth of another plant -non selective: controls all living plants regardless of species herbicides characteristics that influence weed resistance - Answer- -single site of action...

what is innate immunity -rapid response (hours) -fixed -limited number of specificities -constant during respone what is adaptive immunity -slow response (days to weeks) -variable -numerous highly selective specificities -improve during response examples of innate immunity -anatomical barriers: physical and chemical barriers -phagocytic cells: patrol bloodstream and tissue and rush to site of infection -complement: direct activities of some phagocytic cells what are the main adapti...

selective permeability - ANSWERallows some substances to cross more easily than others phospholipids - ANSWERkey ingredient of biological molecules spontaneously self-assemble into simple membranes diffusion - ANSWERtendency for particles of any substance to spread out into available space

Autosomal Dominant Correct Answer 1 parent has, 50% change of child having Autosomal Recessive Correct Answer Both parents are carriers, 25% change of child having, 50% chance child is a carrier. Cystic Fibrosis Correct Answer affects pancreas causing secretions in lungs 21st Trisomy Correct Answer Down Syndrome Klinefelter Syndrome (XXY) Correct Answer male has extra X, female like qualities Turner Syndrome Correct Answer Missing X in females Alpha Thalassemia Correct Answer i...

Honors Biology: Unit 2 Test Questions with Certified Solutions What is the role of the cytoskeleton in the cell? The cytoskeleton provides structural support, helps maintain cell shape, and facilitates movement of materials within the cell. How do plant cells differ from animal cells in terms of organelles? Plant cells have chloroplasts and a large central vacuole, while animal cells do not. Animal cells have lysosomes, which are less common in plant cells. What is the function...