Centrosome - Study guides, Class notes & Summaries

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...

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...

MCMB Cell Structure and Function Exam Questions and Answers what is the function of the centrosome? - Answer-organize mitotic spindle important role in cytokinesis describe the structure of a endoplasmic reticulum? - Answer-flattened sheets, sacs and tubes of membranes continuous with what? - nuclear envelope What are the functions of the rough ER? - Answer-- protein synthesis of some - post-translational folding and modification of proteins - trafficking of proteins - regulation of ...

A nucleotide is made up of what 3 components? - phosphate group, pentose sugar (deoxyribose in DNA and ribose in RNA), and a nitrogenous base What nitrogenous bases are purines - Adenine and Guanine What nitrogenous bases are pyrimidines? - cytosine, thymine, uracil How can you differentiate between purines and pyrimidines? - purines are double-ringed while pyrimidines are single-ringed What are the differences between DNA and RNA? - DNA: double stranded, has deoxyribose sugar(hydrox...

USABO Open Exam 2024 | 100%Correct Answers Verified Latest 2024 Version. 1. 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 le...

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...

AP Biology: Cells Latest Version with Complete Solutions Active Transport Movement of solutes against a gradient, requiring the expenditure of energy Adhesion Proteins Attach cells to neighboring cells and give cell stability Anchoring Junctions Protein attachments between adjacent animal cells; desmosomes bind adjacent cells together and are associated with protein filaments that extend into the cell interior to hold structures together Bulk Flow Collective movement of substan...

USABO Open Exam 2024 | 100%Correct Answers Verified Latest 2024 Version. 1. 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 le...

USABO Open Exam | Question With 100% Correct Answers | Verified | Latest Version 2024 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 ...

Problem Sets BIOL 111 – Fletcher LATEST ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+ A particular eukaryotic protein is 800 amino acids long. Which of the following could be the maximum number of nucleotides in the coding sequence of the mature mRNA that codes for the amino acids in this protein? - CORRECT ANSWER 2,400 The purpose of a spliceosome is to: - CORRECT ANSWER remove introns and bring together exons in an mRNA molecule Proto-oncog...