Intermediate filaments - Study guides, Class notes & Summaries

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...

What are Corrugations? correct answer: Wavy ridges caused by uneven nail growth; usually result of illness or injury. (No impact) (Treatment: Buff over nails, keep hydrated with oil.) What is the definition of Anatomy? correct answer: The study of body structure What is the stratum germinativum (stratum basale)? correct answer: -deepest live layer of the epidermis -produces new epidermal skin cells (mitosis) - Moisture content approximately 83% What is the stratum corneum? correc...

The figure above is a cartoon of the plus end of an individual microtubule. Based on our discussion in lecture, which of the following statements is correct? - ACCURATE ANSWERS The plus end is shrinking. True or False: The two ends of a microtubule that is growing in vitro (with neither end capped) have different critical concentrations. - ACCURATE ANSWERS True. Which of the following is/are MAPs? Protein(s) that bind the GTP cap and promote assembly of microtubules Proteins that promo...

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...

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...

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 ...

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...

Phosphatase correct answers This myosin-actin interaction forms the basis of the cross-bridge cycle (CBC), which causes muscle contraction, as in skeletal -bridge cycling (CBC) requires phosphorylation of the myosin light chain (LC20). A .............. is an enzyme that removes a phosphate group from its substrate composed of actin and are dynamic and are lengthen by polymerization or shortened by depolarization correct answers microfilaments are provide strucule support for the cell ...

Cell Theory All living organisms are composed of one or more cells. What are the 3 important parameters in microsopy? Magnification, resoultion, and contrast. Cell structure relies on what 4 factors? Matter, energy, organization, and information What are the 2 categories all forms of life based on cell structure? Prokaryotes and Eukaryotes. The proetome of a cell determines its ? Structure and function. Prokaryotic cell Reletively simple sturctures without a nucleus, put into either bacte...

Are fibers cells? - ️️No, they are just made by cells areol- - ️️a little open space Describe areolar connective tissue. - ️️Loosely woven fibers in interstitial fluid and contains all cell types found in connective tissue. This type of tissue is distributed throughout Describe elastic cartilage. - ️️Found in the outer ear - tolerates distortion; has a collagen matrix with elastin fibers Describe endochondral ossification. - ️️Blood vessels grow around cartilage and peric...