this question on cell biology 4th edition chapter 20
1 describe cell polarity?
2 describe the role of: tight junction, adherent junctions, desmosomes, gap junctions?
3 describe stem cell?
4 describe pluripotent cells?
5 what are iPS cells- how are they formed?
Ans 1. Spatial differences of shape, structure and function within a cell .
Ans 2 . Tight junction hold cells together. Gap junction connects cytoplasm of two cell so that small molecules can be transporter.
Ans 3. Cells that differentiate into other types of cells and can divide in self renewal to produce same type of cells.
Ans 4.embryonic stem cells are calles pluripotent cell that can give rise to all cells that can make the body
this question on cell biology 4th edition chapter 20 1 describe cell polarity? 2 describe the...
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Question 47 2 pts Neural crest cells are now known to be able to differentiate in to cells. None of the options shown. ectoderm All of the options shown mesoderm endoderm Question 42 2 pts Induced pluripotent stem (iPS) cells can be created by the expression of a set of key genes in most somatic cell types, including cells derived from adult tissues. O require a supply of donor egg cells, as is the case for embryonic...
What are Animals? 1. List and briefly describe the defining features of animals. Be sure you understand these terms: eukaryote, heterotrophic, multicellular 2. Clearly show how the set of features listed in your answer to question 1 distinguishes animals from bacteria, fungi, plants and protists. 3. Describe the characteristics of true multicellularity in animals. Your answer should include: collagen (what is it, what does it do, etc.), gap junctions vs tight junctions, cell differentiation, totipotency and more. 4. To what...
HW - Chapter 4: Biology of the Cell Question 2 (of 35) 2. value 2.85 points Select all that are true of the resting membrane potential. It occurs when electrical charges across a membrane neutralize each other, so there is no charge difference. It involves sodium and potassium No energy expenditure is necessary to maintain a resting membrane potential The sodium-potassium pump is required. References
help me to answers all the question 1. What is Extracellular Matrix? What is it made of? More abundant in plant or animal cells? 2. What does Anchorage dependence mean? 3. What are the roles of ECM? 4. What are the different junctions in animal cells? Plant cells? 5. Which junctions in plant and animal cells are similar? 6. Explain how different junctions function. 7. Describe what plant cell walls are made of. What are some functional differences that we...
Elementary Principles of Chemical Processes, 4th edition, Chapter 4, question 89 an unknown paraffinic hydrocarbon is defineed by the chemical formula CxH2x+2. the paraffin is burned with air and there is no CO in the combustion products. A) use a degree of freedom analysis to determine how many variable must be specified to determine the flowrates of all components enetering and leaving the combustion unit. express the fraction excess air as Y and write element balances in terms of X,...
Please answer the following questions below. 1. Stem Cell Properties - List and describe the two main properties of stem cells. In your answer, include the different types of potencies? 2. Normal or cancer cells? You are given two flasks of cells. One contains cells from normal tissue while the other contains cells from a human cancer. Before you begin your studies, you accidently erased the labels off both flasks. Now you no longer know the identity of each sample....
1) The approximate cell yield of a T25 flask (for adherent cells) is 2.8 x 106 cells. The cell yield is the total amount of adherent cells at confluence. How many adherent cells would you expect to be in this flask at 80% confluence? 2) For adherent cells, the seeding density is usually between what range of % confluencies? 3) How many total cells would you place in a T75 flask with a cell yield of 8.4 x 106 cells...
Questions: 1.) Describe the cell cycle for plant cells. 2.) Describe the cell cycle for animal cells. 3.) Describe the mitotic process 4.) Calculate the mitotic index for onion root tip cells. s spend in mitosis. 5.) Calculate the time that onion root tips cell
Textbook: Modern Management concepts and skills (14th edition) Chapter 5 Question 5-3 Describe the relationship between planning and the other general functions of management (organizing, controlling, and influencing). In your opinion, which of the four functions is most important? and why? Help me this question in detail.
Biology 108 Laboratory Manual: Fourth Edition.
Follow-Up Questions for Chapter 5 (pg. 87-88)
1. Are sister chromatids identical anymore after crossing over? Explain. 2. Could a karyotype determine if a person will have brown hair?! 3. Why is it so problematic if nondisjunction occurs during meiosis? Think of what would result. 4. You isolate a cell from the liver of a lab animal. After running a diagnostic test, you dis- cover there are 18 chromosomes in the cell. How many...