Intermediate filaments Samenvattingen, Aantekeningen en Examens

Science Bowl Biology Questions and Answers 100% Pass The purine bases are: A. adenine and guanine B. adenine and cytosine C. thymine and cytosine D. uracil, thymine, and cytosine A 2. Four chromatids would be considered a: A. mutation B. non-disjunction C. tetrad D. synapses C 3. Which of the following is NOT in the class insecta: A. bees B. moths C. fireflies D. spiders D 4. Plant cells differ from animal cells in that only plant cells possess: A. a nucleu...

Transfer tRNA correct answers What completes translation Adaptor molecules between mRNA & amino acids in protein synthesis - ensures correct aa Transcribed as a group in long pre-mRNAs Transcribed by polymerase II ~ 70-80 nucleotides, Clover leaf/ L structure Cleaved post transcription into individual tRNAs 5' end cleaved by RNaseP 3' end cleaved by RNase with CCA sequence Centromere correct answers Specialized region of the chromosome Attaches sister chromatids Critical role in ...

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...

USABO OPEN EXAM 2024 WITH 100% CORRECT ANSWERS 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 tr...

BIOL 266 Final Exam 2024 Actual Questions and Answers Graded A   BIOL 266 Final Exam 2024 Actual Questions and Answers Graded A = Correct answer = We don’t have the answer Exam 1: MULTIPLE CHOICES: 1. You have isolated a mutant line of mammalian cells deficient in emerin. This mutant line is expected to be impaired in: A. Export of 40S and 60S ribosomal subunits from the nucleus B. Ribosome assembly in the nucleolus C. Transcription of some genes in certain ti...

Test Bank Essential Cell Biology 5th Edition Alberts Hopkin Table of Contents CHAPTER 1: CELLS: THE FUNDAMENTAL UNITS OF LIFE ................................................................ 2 CHAPTER 2: CHEMICAL COMPONENTS OF CELLS ........................................................................ 21 CHAPTER 3: ENERGY, CATALYSIS, AND BIOSYNTHESIS .............................................................. 48 CHAPTER 4: PROTEIN STRUCTURE AND FUNCTION ......................................

BIOL 266 DETAILED FINAL NOTES| CONCORDIA UNIVERSITY|UPDATED 2024/2025 UNIT 9.0 – THE CYTOSKELETON Two functions of the cytoskeleton: 1. Provides structural framework for the cell,serving as a scaffold that determines cell shape and the general organisation of the cytoplasm. 2. Responsible for the movements of the entire cells and for the internal transport of organelles and other structures (such as mitotic chromosomes) through the cytoplasm. The cytoskeleton is composed of 3 principa...

HESI A2 Biology (1) Exam (Latest 2024 Update) Questions and Verified Answers| 100% correct| Grade A Q: Which of the following about metabolism is incorrect? Answer: metabolic reactions in a cell progress from low energy to high energy Q: The organelle that contains the cell's DNA is the nucleus. The DNA is organized in masses called Answer: chromosomes Q: Cells are made up of components referred to as Answer: organelles Q: The two types of cells are ...

USABO EXAM QUESTIONS AND ANSWERS Eukaryote - ANS An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure that sets them apart from prokaryotic cells is the nucleus or nuclear envelope within which the genetic material is carried. All large complex species are eukaryotes, including animals, plants and fungi. Euchromatin - ANS This shows as pale areas in the nucleus under electro magnification. It is a less densely packed for...

USABO Latest Update with Verified Solutions Eukaryote An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure thats sets them apart from prokaryotic cells is the nucleas or nuclear envelope within which the genetic material is carried. All species of large complex species are eukaryotes, including animals, plants and funghi. Euchromatin This shows as pale areas in the nucleas under electro magnification. It is a less densly...