1 cell proliferation and cell growth depend on

Assignment Help Biology
Reference no: EM13348114

1) Cell proliferation and Cell growth depend on extracellular signal molecules called growth factors and mitogens. What would happen if cell proliferated without the effects caused by these molecules?  Explain the mode of action that these molecules utilize, and what effects these mitogens and growth factors have on cells?  Specifically explain one growth factor and one mitogen and the cellular signaling they trigger within the cell, as well as the final result of that signaling.

2) Explain how cancers can arise even though we have cell cycle checkpoints that are meant to check the viability and readiness of the cell to divide. What are carcinogens and why and how might they effect the cell cycle in the transformation of normal cells to cancer cells.

3) What reasons might the human body have an apoptotic pathway which signals for cellular death in light of the fact that cells primary purposes are to survive and multiply.  Explain why and how apoptosis might be part of the normal daily repair of genetic damage, knicks , cuts, bruises and breaks in the human body.

4) Bacteria are microbes whose sole purpose is to survive and multiply. just like human cells, but explain why bacteria do not have apoptotic signaling pathways.  Would it be beneficial if these bacteria did have apoptotic pathways built into their cellular machinery?

5) For humans, explain what the "hayflick limit" is and why and how it is different from apoptosis?

Reference no: EM13348114

Questions Cloud

Questiona give an example of a cross site scripting xss : questiona give an example of a cross site scripting xss attack. include an explanation of the differences between
Question 1 consider two countries that share the same : question 1 consider two countries that share the same technology south africa and the uk and two goods diamonds and
Question looking at the table below for the johnson company : question looking at the table below for the johnson company what is the total annual cost of maintaining the components
Research paperwrite a research paper within organizational : research paperwrite a research paper within organizational research and theory.topics include1. environments shape
1 cell proliferation and cell growth depend on : 1 cell proliferation and cell growth depend on extracellular signal molecules called growth factors and mitogens. what
Case studycontract law has neither a complete descriptive : case studycontract law has neither a complete descriptive theory explaining what the law is nor a complete normative
Socket programming modify the translate program and : socket programming modify the translate program and dictionary program. modify the programs to handle multiple user
Question 1 a mild steel bar 40 mm diameter and 100 mm long : question 1. a mild steel bar 40 mm diameter and 100 mm long is subjected to a tensile force along its axis.youngs
Question 1 what are the responsibilities of the board of : question 1. what are the responsibilities of the board of directors?nbsp please give an example of a board of directors

Reviews

Write a Review

 

Biology Questions & Answers

  Which cell structures might the herbicide have damaged

Nan was a farmer who noticed that her crops were thriving poorly in the presence of herbicide contamination from a neighboring farm. Glucose production in leaves was well below normal. Which cell structures might the herbicide have damaged?

  What is the number of chromosomes

A wild cherry tree has 5 pairs of chromosomes in its nucleus found in a cell in the vascular cambium. What is the number of chromosomes and the number of linear DNA strands during the G2 stage cell cycle?

  What are two natural causes of dna mutations

What are two natural causes of DNA mutations, besides DNA replication errors. Briefly explain what happens to the DNA and how replication accuracy is affected.

  Explain the subdivisions of the ventral cavity

Explain the subdivisions and the sub-subdivisions of the ventral cavity and name an organ found in each.

  Explain how the scientists tested their hypothesis

Explain how the scientists tested their hypothesis that females only produce glandular secretions when ridden by a male. What was their sample size for this experiment?

  Plot the relative the amount of carbon dioxide

In yeast fermentation, CO2 is produced as a function of time. The production of CO2 by yeast is responsible for the rising of bread. Plot the relative the amount of carbon dioxide produced as a function of time.

  What is hydrophobic interaction chromatography

what is Hydrophobic interaction chromatography? and how do high salt, medium salts, and no salt buffers paly a role in the purification of GFP? I know that no salt brings polar amino acids to the surface of GFP and nopolar amino acids move inside ..

  What conditions will be adjusted to enhance preferentially

Design an enrichment culture medium and a protocol for the isolation and purification of a soil bacterium (e.g., Bacillus subtilis) from a sample of soil. Note possible contaminants and competitors. How will you adjust conditions of growth, and wh..

  Analyzing rate of ring flipping using nmr

The flipping of Phe rings requires that groups surrounding the ring move aside momentarily. The rate of ring flipping can be measured using NMR.

  Explain the composition of the genetic material in bacteria

Explain the composition of the genetic material in bacteria, in archaea and in eukaryotic cells. Distinguish between the structure and function of the genetic material as chromotin and as chromosomes.

  Sample microbiology question

Assume you are walking on the beach when you step on a shell and cut your foot. 4-cells of Vibrio vulnificus bacteria are transferred from shell and deposited deep inside the cut.

  Recessive dna repair disorder

XPA is a recessive DNA repair disorder that causes skin cancer with even the smallest exposure to sunlight. Heterozygotes are carriers, but are not affected.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd