Consider the proper progression of the cell cycle. In one of the first steps, the __ Select one: a. cell membrane breaks down as the micrtubulin filaments dissolve b. cell membrane breaks down as the intermediate filaments dissolve c. nuclear membrane breaks down as the actin filaments dissolve d. cell membrane breaks down as the actin filaments dissolve e. nuclear membrane breaks down as the intermediate filaments dissolve

Consider the proper progression of the cell cycle. In one of the first steps, the __ Select one: a. cell membrane breaks down as the micrtubulin filaments dissolve b. cell membrane breaks down as the intermediate filaments dissolve c. nuclear membrane breaks down as the actin filaments dissolve d. cell membrane breaks down as the actin filaments dissolve e. nuclear membrane breaks down as the intermediate filaments dissolve

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter11: How Cells Reproduce

Section: Chapter Questions

Problem 14SA: Match each term with its best description. ___ cell plate a. lump of cells ___ spindle b. made of...

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Match each term with its best description. ___ cell plate a. lump of abnormal cells ___ spindle b. made of microfilaments ___ tumor c. divides plant cells ___ cleavage furrow d. spindle originates here ___ contractile ring e. dangerous metastatic cells ___ cancer f. made of microtubules ___ centrosomes g. indentation ___ telomere h. shortens with age
Count 100 cells and tally them. Remember the phases you learned in Bio 31 and Anatomy? Draw a pie chart graph showing the phases of Allium root tip. Label each of the phases with the % for each phase: prophase metaphase anaphase telophase interphase provide direction of the phase progression--direction in which to read the graph so the phases of mitosis are in proper order.
Onion Meristem Cells Onion meristem cells complete a cell cycle in 800 minutes. Use the data in the table to calculate the portion of the cycle spent in prophase. Show all your work. Phase Specimen 1 Interphase 120 Prophase 25 Metaphase 6 Anaphase 8 Telophase 5
Onion meristem cells complete a cell cycle in 300 minutes. Use the data in the table to calculate the portion of the cycle spent in interphase.Show all your work. Phase Interphase Prophase Metaphase Anaphase Telophase Specimen 1 135 22 9 2 1
A cell with one mutation is unable to complete cell division (mitosis). What intracellular structure/structures might be defective? Explain your answer by first giving the normal role of this/these structures and then explaining why when defective, it/they might prevent the cell from completing mitosis.
Answer both question to get a like or don't attempt.Thanks Which event occurs during interphase? a. The nucleus divides. b. Protein synthesis is halted. c. The cytoplasm divides. d. The nuclear envelope disassembles e. The cell doubles its cytoplasmic contents. What happens to air as it is warmed? a. It moves toward higher latitudes. b. It moves toward lower latitudes. c. It rises. d. It sinks. e. It moves along a pressure gradient.
Q/Choose between parentheses 1-in cell cycle the interphase included three parts * (G1,S,G2/S ,G1,G2/G1,G2,S/G1,G2,G3) 2-the types of solution in osmosis mechanism transport * (isotonic/hypertonic/hypotonic/ all of them) 3-The power of a microscope to enlarge the image of an object as much as possible is called its ? * (magnifying power/ocular lenses /objective lences/light source) 3-The power of a microscope to enlarge the image of an object as much as possible is called its ? * (magnifying power/ocular lenses/ objective lences/light source) 4-.... is consider as a branch of biology * (Ecology/All of them/ Botany/Parasitology) 5-is a group of related orders * (class/family/phylum/species)
Biopsies from aggressive cancers often have cells that contain several nuclei per cell when viewed through a microscope. Which scenario could explain how such a multinucleated cell might have come to be? (a) The cell underwent repeated mitosis with simultaneous cytokinesis. (b) The cell had multiple S phases before it entered mitosis. (c) The cell underwent repeated mitosis, but cytokinesis did not occur. (d) The cell underwent repeated cytokinesis but no mitosis. (e) The cell actually went through meiosis and not mitosis.
Scientists often extract DNA from the nucleus of cells for analysis or use. This process breaks the cell membrane, spins the solution to remove the large particles through high g-force, adds alcohol to make the DNA less soluble aqueous solution, then spins the solution again to pull the DNA out of solution. Consider a cell in metaphase compared to a cell in rest (not in the cell cycle leading to cell division). What properties of a metaphase cell might let you extract more DNA compared to the resting cell? Are there any that might make the extraction more difficult?
Which of the following regarding microtubules is LEAST correct? A)Microtubules do not have important functions in neurons B)Microtubules are important for anterograde axoplasmic transport C)No answer text provided. D)Microtubules are important for maintaining the structure of the neuron E)Microtubules are important for retrograde axoplasmic transport
How long does it take for a cell to take one complete cycle? The answer varies on the type of cell and the species. For instance, a liver cell completes its cell cycle for over 22 hours (Becker and Lane 1965) while other somatic cell lasts to about 18 hours. Can you cite other types of cells that undergo cell cycle and the time it takes to complete the cycle? List five below.
Let’s model mitosis. Focus on drawing the cell nucleus taking care to model the number and location of chromosomes. Although the chromosomes are only visible in each stage, draw them in all stages for clarity sake. Draw a 2n=4 cell at G1 of interphase. Draw the same cell at the start of prophase. Draw the same cell at metaphase. Draw the cell(s) that result at the end of cytokinesis.