The basic unit of life is the cell, and now in a modern laboratory even mammalian cells can be easilycultured in a test tube or a flask. In this unit you have learned about the biomolecules of life such ascarbohydrates, lipids, proteins and nucleic acids which come together to allow cells to form andfunction. You are required to design a cell culture medium for maintaining mammalian cells, whatare your key considerations? (hint: you need to describe the key nutrients and the underlyingreason for them, and the pH of your medium).

Laboratory research and biotechnology require mammalian cell culture medium design. Several factors…

Answered: The basic unit of life is the cell, and…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Explain (using the correct terminology and drawing an image) what happens to the cells in the following environments: A human blood cell (0.9% salt) is placed in a saltwater tank (27.5% salt). - A bacterial cell with 35% organic material in their cytoplasm is living in a tank filled with 35% sulfur. - A freshwater plant cell (75% water) is living in a pond that floods over.
Imagine you are working in a microbiology lab. You perform an experiment where you take a culture of bacterial cells, transfer them to a new solution (Solution A), and then determine the number of living cells. You are surprised by the result: there are no living cells! Which of the following is a possible explanation for your observation? Solution A is hypertonic for your bacterium, resulting in the diffusion of water out of the cells. Solution A is isotonic for your bacterium, resulting in the diffusion of water out of the cells. Solution A is hypotonic for your bacterium, resulting in the diffusion of water out of the cells. Solution A is hypertonic for your bacterium, resulting in the diffusion of ions out of the cells.
peptide hormones and growth factors act on target cells by binding to receptors located at the: endoplasmic reticulum cell surface nucleus mitochondria I selected option A and got it wrong. What is the correct answer and explain how it is the correct answer so i may better understand where i went wrong.
You have been asked to do a strucutural study to understand how increasing cell surface area affects cell size, cell shape and functions. What cell type would help you most efficiently observe the effects of increasing surface area? Choices: A. Monocytes from the blood serum. Monocytes are largely roughly spherical cells. B. Red Blood cells from the bone marrow. The shape of Red blood cells is a biconcave disk and looks like a donut. C. Stem cells from skin. In this case assume a skin stem cell is flat and plate like. D. Microvilli covered cells from the intestines. Microvilli are tiny hair like protrusions in the plasma membrane of intestinal cells that increase the absorption of nutrients in the intestines.
If you are asked to synthesize a cell using only five parts, what parts will you include to ensure that it can live. Why will you include each?
As part of an experiment, a student places onion root tip samples in 1% colchicine for two hours. For the control group, the student leaves one sample of onion root tips untreated. After two hours the student prepares five slides of these root tips from each setup and observes them under a microscope. The table shows a summary of the data collected from all slides.
To which experimental condition (control, chemical X, or chemical Y does each slide correspond to? and why?
BIOCHEMISTRY Cell culture has become one of the most fundamental techniques for modeling biological systems and is of increasing importance in the biotechnology and pharmaceutical sectors as well as an essential process in life science research labs. Which steps would you take if a given cell culture is growing slower than expected?
Scientists isolate proteins from various cellular organelles and check for the presence of known proteins using antibodies specific to those proteins. From the data below, what kind of protein was identified? Organelle/Location Amount of protein (relative units) Cytoplasm 100 Nucleus Mitochondrion 20 Peroxisome ER 80 B IU swered MacBook 20 F3 F4 # % 3 4 6 7 8. W
"In most animal cells, minus end-directed microtubule motors deliver their cargo to the periphery of the cell, whereas plus end-directed microtubule motors deliver their cargo to the interior of the cell", is true or false.
If a percent difference is a positive number, what does this tell us about the change in weight of the artificial cell?
A lab trainer instructed a new lab recruit to freeze down cells from a tissue culture flask to save for future use. After verifying that the flask of adherent cells was confluent, and contained enough cells to freeze down, the lab trainer left the recruit to go through the freezedown protocol. A few days later, the trainer thawed out the cryovials of cells that the recruit put away, and discovered that there were very few viable cells. Assuming that the lab trainer did everything correctly, answer the following: What are two possible mistakes made that explains why there are so few cells? Explain why those mistakes had the effect they did.

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