Centrosomes - Study guides, Class notes & Summaries

AP Biology - Unit 2 Study Guide Questions with Verified Answers Describe diffusion and give some specific examples of molecules which move by diffusion. - The random thermal motion of particles of liquids, gases, or solids. In the presence of a concentration or electrochemical gradient, diffusion results in the net movement of a substance from a region where it is more concentrated to a region where it is less concentrated. - The movement of particles of any substance, so that they tend ...

bio 150 final exam Correct Questions & Answeheat is a form of? a. kinetic tial c. activation d. catalytic - ANSWER a. kinetic An alpha helix is a type of protein_________ structure? a. primary b. seconday c. tertiary d. quartenary - ANSWER b. secondary the cytoplasmic granule of RNA and protein that reads mRNA and synthesizes proteins is called the _________, an organelle that is not bound by a membrane? a. kinetechore b. Golgi complex c. ribosome d. nucleolus - ANSWER c. r...

10.1Q1 Define three stages of the cell cycle? Correct Answer-Interphase G0: where cells rest G1: where cells grow and expand S: where DNA is replicated G2: where cells repair damaged DNA and duplicate centrosomes Cell division (M) phase Where cells undergo nuclear and cytoplasmic division 10.2Q1 What are cyclin-dependent kinases (Cdks)? Correct Answer-A small family of protein kinases that regulate the transition of various phases in the cell cycle. CDKs are small proteins that mainl...

PSS 3421 test 1 questions & answers 2024/2025 (T/F) Cells with a single set of chromosomes are called diploid - ANSWERSfalse The mode of cell division which results in four daughter cells that are genetically different, with each cell containing one haploid set of chromosomes, is known as? - ANSWERSmeiosis _________________ chromosomes pair in meiosis and have the same genetic loci and structure - ANSWERShomologous Chromosomes become aligned along the cell's equator during this ph...

Centromeres - ANSWER area of attachment between two sister chromatids Kinetochores - ANSWER structures of proteins and specific sections of chromosomal DNA at the centromere; point of attachment for microtubules of the spindle Chromatids - ANSWER two copies of duplicated chromosome Spindle apparatus - ANSWER formed from microtubules extending from the two centromeres; as centrosomes move away from each other the microtubules lengthen

Centrosomes and Centrioles - correct answer Essential for movement of chromosomes during cell division & Organizes microtubules in the cytoskeleton Ribosomes - correct answer protein synthesis Nucleus - correct answer Site of rRNA synthesis and assembly of ribosomal subunits Golgi apparatus - correct answer Replenishes cell membrane Packaging materials for lysosomes and Peroxisomes Microfilaments - correct answer Mainly composed of thin strands of actin proteins tight junctio...

Biology L 104 Exam 1 Questions With Solutions 100% Correct 1. An example of a saturated fat is a. olive oil b. corn oil c. animal fat d. margarine e. soybean oil c. animal fat 2. During the folding of DNA into discrete chromosomes, DNA is first condensed into small repeating units called ___________. a. nucleosomes b. lysosomes c. ribosomes d. centrosomes e. nucleotides a. nucleosomes

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...

Cell Cycle correct answer: How the cell replicates its DNA when it needs to -pathway that allows us to grow What does a cell have to decide post mitosis? correct answer: If it wants to enter cell cycle or not What happens if the cell cycle production is not efficient? correct answer: Mutation or death What are the purposes of checkpoints? correct answer: They can prevent mutations and overall death of cell How does a cell cycle start? correct answer: A signal comes from externa...

Cell Cycle and Mitosis Questions with 100% Correct Answers | Latest Update 2024 | Rated A+ Cell cycle - The stages that take place between the time a eukaryotic cell divides and the time the daughter cells divide. (stages of growth, preparation, and division (Interphase and Mitosis) Interphase Activities - Cell grows, performs its normal functions, and prepares for division G1 - In interphase - cell grows rapidly, builds new organelles; also performs regular cell functions S phase - The "sy...