Centrosome Study guides, Class notes & Summaries

Biology 1406 Exam 4 Study Guide Ch. 12-17What happens in the G1 phase? - correct answer Normal activities of the cell What happens in the S phase? - correct answer DNA is replicated What happens in G2 phase? - correct answer Preparation of the cell to undergo mitosis: copying organelles, making proteins and ATP, copying centrosome What happens in prophase? - correct answer A cell's genetic material condenses, a spindle starts to form, and the nuclear envelope breaks down What happen...

MCB 2010 MDC Study Guide# 1 2024 Which of the following statements is INCORRECT regarding prokaryotic cells? a. Their DNA is not enclosed within a membrane. b. They lack membrane-enclosed organelles. c. They typically have a circular chromosome. d. They reproduce by binary fission. e. They lack a plasma membrane. -Answer-They lack a plasma membrane. 2.Each of the following statements concerning the gram-positive cell wall is true EXCEPT A) it maintains the shape of the cell. B) it is s...

BIO 210 FINAL EXAM GENETICS 2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES ANSWERS ALREADY GRADED A+ A nucleotide is made up of what 3 components? - CORRECT ANSWERphosphate group, pentose sugar (deoxyribose in DNA and ribose in RNA), and a nitrogenous base What nitrogenous bases are purines - CORRECT ANSWER-Adenine and Guanine What nitrogenous bases are pyrimidines? - CORRECT ANSWERcytosine, thymine, uracil How can you differentiate between purines and pyri...

what part of the cell contains the centrioles and the centrosome matrix? - ANSWER-centrosome Another name for coronal plane? - ANSWER-frontal which plane divides the body into anterior and posterior portions? - ANSWER-coronal what is the function of the endocytic vesicle? - ANSWER-moves large particles, fluids and molecules through the membrane into the cell which plane is on a slant? - ANSWER-oblique what structure synthesizes protein for use inside the cell? - ANSWER-free riboso...

Cell theory - -All organisms are made of cells -The cell is the simplest collection of matter that can be alive -Cells are near the middle of the biological size range scanning electron microscope - Focus electrons onto the surface of a specimen, providing images that look 3-D Transmission Electron Microscopes - focus a beam of electrons through a specimen cell fractionation - Takes cells apart and separates the major organelles from one another centrifuges fractionate cells into thei...

Biology 1406 Exam 3 Questions and Answers Rated A+ Cell division is used for which of the following ? Reproduction of single-celled organisms, growth of multicellular organisms, repair and replacement of cells, and sperm and egg production Asexual and sexual reproduction differs in that sexual reproduction_____________ Can produce great variation among the offspring (Meiosis) Asexual Reproduction ____________ Produces offspring genetically identical to the parent (Mitosis) Mos...

What part of the cell contains the centrioles and the centrosomes? permuclear cytoplasm What is the function of the endocytic vesicle? moves large particles, fluid, or molecules What structure synthesizes protein for use inside cell? free ribosome The nuclear envelope has a phospholipid bilayer. True What structure regulates the passage of material between the cytoplasm and nucleus? nuclear pore What is the function of the nucleolus? ribosomal RNA synthes...

Bio 101 Module 3 test (Questions and Answers A+ Graded 100% Verified) A diploid cell has ____ the number of chromosomes as haploid cells ANS: twice the first level of DNA organization in a eukaryotic cell is maintained by which molecule? ANS: chromatin identical copies of chromatin held together by cohesin at the centromere are called _____? ANS: sister chromatids Chromosomes are duplicated during what stage of the cell cycle? ANS: S phase which of the following events doe...

BIOD 101 Module 4 Portage Learning Exam With Complete Solutions Chromosomes - structures of packaged chromatin complexes Somatic cell - All of the body's cells except gametes Number of chromosomes in each somatic cell - 46 (23 pairs) Cell cycle - Process of parent cell replicating its genetic info and dividing into 2 new daughter cells cytokinesis - division of the cytoplasm interphase - G1, S, G2 phases. 90% of cycle time. Gap phase 1 - First phase, growth phase Messenger RNA (mR...

Define essential steps of the signaling cascade correct answer: Signal Receptor Signaling molecule (can send a second messenger) Shorter and Longer effects Three types of signals correct answer: paracrine, autocrine, endocrine Phases of eukaryotic cell cycle and their duration correct answer: • G0: exit from cell cycle (nondividing) • G1: duplicates organelles, cytosolic components, begins replicating centrosome (8-10hrs) - Prep for DNA synthesis • S/interphase: DNA is repli...