A group of BS Biology students were tasked to design and fabricate different synthetic cell membranes that could be used to simulate cellular activities of certain organisms. Below are the chemical structures of the compounds that are available to them: H2C-OH НС — ОН Но H2C-OH myristic acid glycerol HO alpha-linolenic acid Но—Р—о OH orthophosphate HO NH2 sphingosine OH CH2OH NH3 CH2OH Но ethanolamine Но. OH Но OH lactose HO (*point of attachment) Given these compounds, help the students assemble the structure of the lipid constituent for the cell membrane appropriate to study the following. Briefly explain your answer. а. a thermophilic bacteria thriving in a hot spring b. a hepatocyte of a sea lion in the Arctic Ocean С. a frog neurocyte

A group of BS Biology students were tasked to design and fabricate different synthetic cell membranes that could be used to simulate cellular activities of certain organisms. Below are the chemical structures of the compounds that are available to them: H2C-OH НС — ОН Но H2C-OH myristic acid glycerol HO alpha-linolenic acid Но—Р—о OH orthophosphate HO NH2 sphingosine OH CH2OH NH3 CH2OH Но ethanolamine Но. OH Но OH lactose HO (*point of attachment) Given these compounds, help the students assemble the structure of the lipid constituent for the cell membrane appropriate to study the following. Briefly explain your answer. а. a thermophilic bacteria thriving in a hot spring b. a hepatocyte of a sea lion in the Arctic Ocean С. a frog neurocyte

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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Which of the following are important biological functions of amino or acid derivatives of sugars? Structural roles Lubricating fluids Cell surface sugars used in cell identity Only A and B A, B, and C
A group of curious scientists were tasked to design various synthetic cell membranes that could be used to simulatecellular activities of different organisms. Help the researchers assemble the structure of the major lipid component for a cell membrane that is appropriate to study the following and briefly explain your answer. a) a prokaryotic cell thriving in a geyser at the Yellowstone National Park in Wyoming, USA b) a muscle cell of a salmon fry in the Arctic Ocean c) a frog neurocyte Please draw the structures clearly. Chemical structures of the compounds that are available are shown on the picture. HELPING TAGS: Biology, Chemistry, Biochemistry, Cell Biology, Molecular Biology
Ammonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in the following reaction: NH3 + H+ → NH+4 NH3 freely permeates biological membranes, including those of lysosomes. The lysosome is a subcellular organelle with a pH of about 4.5–5.0; the pH of cytoplasm is about 7.0. What is the effect on the pH of the fluid content of lyso- somes when cells are exposed to ammonia? Note: Ammo- nium (NH4+) does not diffuse freely across membranes.
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Which of the following statements are correct? Explain your answers.A. Proteins are so remarkably diverse because each is made from a unique mixture of amino acids that are linked in random order.B. Lipid bilayers are macromolecules that are made up mostly of phospholipid subunits.C. Nucleic acids contain sugar groups.D. Many amino acids have hydrophobic side chains.E. The hydrophobic tails of phospholipid molecules are repelled from water.F. DNA contains the four different bases A, G, U, and C.
Which of the following statements about binding between cytosolic proteins and phospholipids is true? a. Phospholipids do not possess the appropriate features to bind to cytosolic proteins. b. Binding between cytosolic proteins and phospholipids is non-specific and does not require molecular complimentarity. c. The ability of a cytosolic protein and a phospholipid to bind can be changed by phosphrylation of the phospholipid. For example, different phosphoinositides bind to different cytosolic proteins. d. Phospohorylation of phosphoinositides occurs randomly, whereas protein phosphorylation is mediated by kinases and phosphotases. Please answer asap and type your answer and do not copy from anywhere please answer asap
please describe the difference in these two macromolecule roles in cellular systems thank you
Which of the following (could be more than one) would not be a rational explanation for why the three-dimensional structure of a protein is driven and stabilized largely by noncovalent rather than covalent bonds?a) Proteins may be degraded for energy, and if their three-dimensional structures were heldtogether by mostly covalent bonding, this might be too difficult to accomplishb) Proteins will need to be unfolded to cross biological membrane, and if their three-dimensionalstructures were held together by mostly covalent bonding, this might be too difficult toaccomplish.c) Protein function (transport, enzyme catalysis, etc...) may require flexibility in the three-dimensional structure to allow for conformational change, and if protein three-dimensionalstructure were held together by mostly covalent bonding, this might be too difficult toaccomplish.d) All of the answer choices are rational explanations for why the three-dimensional structure of protein is driven and stabilized largely…
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