Microfilaments - Study guides, Class notes & Summaries

Why is myelin important in the nervous system? A. It allows signals to travel faster along axons because depolarization occurs only at myelinated locations. B. It allows signals to travel faster along axons because depolarization occurs only at nonmyelinated locations. C. It bundles the dendrites of adjacent neurons together. D. It increases capacitance across the cell membrane, which helps electrical signals to leave the axons. E. It traps neurotransmitters, increasing their concentratio...

BIO 115 FINAL (Barry) WVU LATEST VERSION GRADED A+ scientific theory an explanation for a very general class of phenomena or observations that are supported by a wide body of evidence hypothesis -must be testable -must be falsifiable -is a proposed explanation for an observation mitotic spindles come out of centrosomes kinetochore microtubules spindle fibers that attach to the kinetochore (center) of chromosome non-kinetochore microtubules spindle fibers that attach to sp...

BIOL 3240 Exam 1 | Questions and Answers (Complete Solutions) What are the two major cell types in the brain? Neurons; glial cells What are some ways cell types can be defined? morphology; transcription profile; cell properties, function; context Two characteristics of neurons asymmetrical, excitable There are ____ major types of glial cell five A neuron is a post ____ cell Mitotic Neurons are both _____ and _____ excitable chemically, electrically _________ neurons have only one process that ...

Science Bowl Biology Exam Questions With Verified And Updated Answers The purine bases are: A. adenine and guanine B. adenine and cytosine C. thymine and cytosine D. uracil, thymine, and cytosine - answerA 2. Four chromatids would be considered a: A. mutation B. non-disjunction C. tetrad D. synapses - answerC 3. Which of the following is NOT in the class insecta: A. bees B. moths C. fireflies D. spiders - answerD 4. Plant cells differ from animal cells in that only plant cells ...

Robbins: Basic Pathology 10th Edition Kymar Abbas Test Bank Table of Contents Chapter 1. The Cell as a Unit of Health and Disease Chapter 2. Cell Injury, Cell Death, and Adaptations Chapter 3. Inflammation and Repair Chapter 4. Hemodynamic Disorders, Thromboembolism, and Shock Chapter 5 Diseases of the Immune System Chapter 6 Neoplasia Chapter 7. Genetic and Pediatric Diseases Chapter 8. Environmental and Nutritional Diseases Chapter 9. General Pathology of Infectious Diseases Chapter 10. Blood ...

NURS 231 PATHOPHYS FINAL EXAM COMPLETE QUESTIONS WITH VERIFIED ANSWERS A bodybuilder's muscles will display hyperplasia. False Barrett esophagus is an example of dysplasia false hypertrophy is an increase in the size of an organ or tissue caused by an increase in the number of cells True Lack of nerve stimulation can cause cells to atrophy True proportion of people with a disease who are positive for the disease sensitivity how likely the same result will occur i...

1. The nucleus , which is essential for function and survival of the cell. A) is the site of protein synthesis B) contains the genetic code C) transforms cellular energy D) initiates aerobic metabolism 2. Although energy is not made in mitochondria, they are known as the powerplants of the cell because they: A) contain RNA for protein synthesis. B) utilize glycolysis for oxidative energy. C) extract energy from organic compounds. D) store calcium bonds for muscle contractions. 3. Alth...

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 ...

The person at highest risk for traumatic brain injury (TBI) is: a. black and economically disadvantaged. b. male and disabled. c. female and 20 years of age. d. an economically advantaged young adult. a. black and economically disadvantaged. Those at highest risk for TBI are children 0–4 years of age, older adolescents aged 15–19 years, and adults aged 65 years and older. Males have the highest incidence in every age group. TBI is highest among black and in lower- and median-income ...

All of the following statement about plants cells are true EXCEPT one. Which one is the EXCEPTION? A. Most of the cytoplasmic volume is occupied by a single vacuole B. Plant cell walls contain cellulose C. Plant cells possesses a cell wall but not a cell membrane D. Adjacent plant cells contain channels allowing for intercellular communication E. Plant cells have mitochondria - Answer-C - plant cells DO have a plasma membrane 2. Why are intracellular binding steroidal hormones slow...