Homework Answers
Phospholipid consists of phosphate, fatty acid and glycerol.
Phosphate group is negatively charged polar head of phospholipid which is hydrophilic. Fatty acid is uncharged non polar tail part of phospholipid which is hydrophobic . Due to this unique property of phospholipid of having both hydrophilic and hydrophobic parts in one molecule , it is also termed as amphipathic molecule . Being amphipathic , phospholipids spontaneousoly form a bilayer in water containing environment so that hydrophilic region is exposed to water while hydrophobic region is hidden. This bilayer is impermeable to many molecules by inhibiting their free movement across the membrane. Only water and gases can pass freely through the bilayer, free movement of large molecules and small polar molecules is inhibited > thus giving membrane a special character of semi permeability (allowing passage of some molecules freely while restricting some others at the same time ).
Add Answer to:
10) All biological membranes are made up of phospholipid bilayers. Why is a phospholipid a good...
1. Draw one string of ten (10) phospholipids. Label the hydrophilic heads and the hydrophobic tails....
1. Draw one string of ten (10) phospholipids. Label the hydrophilic heads and the hydrophobic tails. (3 points) chrohobia hrudiephilic CH₂-CH-CH 2. What are the basic components of one phospholipid molecule? (3 points) 3. Draw a phospholipid bilayer. Label the hydrophilic heads and the hydrophobic tails. (3 points) 4. Cell membranes are made of phospholipid bilayers. Why is it important for there to be both hydrophilic and hydrophobic components of the membranes that surround all of our cells and organelles?...
4. Describe a reason why there is a constraint on cell size. 1 pt In that...
4. Describe a reason why there is a constraint on cell size. 1 pt In that context, explain how eukaryotic cells are able to be 10Xlarger than prokaryotic cells. 1 pt 5. Consider a eukaryotic cell making two different proteins: one protein functions within the mitochondria and the other is secreted outside of the cell. The genes encoding the two proteins are transcribed and the two types of mRNA are released into the cytoplasm for translation How will the production...
Suppose the total demand function for a good was made up of 10 identical, individual demanders...
Suppose the total demand function for a good was made up of 10 identical, individual demanders all with a demand function given by: 10 0.2P Find the inverse, total demand function and fill in the missing values below. P 50 (Round to the nearest two decimal places if necessary.)
If one adds up all payments made by a zero-coupon bond issuer, they will be much...
If one adds up all payments made by a zero-coupon bond issuer, they will be much higher than coupon payments made to coupon bond buyers. However, making such a comparison will be wrong. Why?
which layer of outer membranes exist in all eukaryotic cells? none of these cell wall both...
which layer of outer membranes exist in all eukaryotic cells? none of these cell wall both of these Plasma membrane which of the following is not an organelle of eukaryotic cells? fimbrae cytoskeleton nucleus golgi emerging and reemerging diseases is a challenge facing science? No answer text provided. No answer text provided. true false The smallest unit that is considered to be alive. none of these atoms cell tissues which of the following types of cells have a plasma membrane?...
10. Which of the following statements best summarizes the differences between DNA and RNA? Group of...
10. Which of the following statements best summarizes the differences between DNA and RNA? Group of answer choices DNA nucleotides contain a different pyrimidine base than RNA nucleotides. The bases in DNA contain sulfur, whereas the bases in RNA do not contain sulfur. The bases in DNA contain sugars, whereas the bases in RNA do not contain sugar. DNA encodes hereditary information, whereas RNA does not. DNA nucleotides contain a different purine base than RNA nucleotides. 9. A phospholipid is...
A production possibility frontier is made up from all of the combinations of two goods or...
A production possibility frontier is made up from all of the combinations of two goods or services that can be efficiently produced with the currently available resources and technology. True or False The PPF is curved (bowed) outward from the origin because resources are limited. True or False The slope of the PPF (in absolute value) shows the opportunity cost as production is switched from one good or service to another. True or False One can calculate the opportunity cost...
2) Explain why nearly all fatty acids made in animals contain an even number of carbons....
2) Explain why nearly all fatty acids made in animals contain an even number of carbons. (Think synthesis; 2+3-4). [1 point] 3) Detail how excess sugar is converted to fat (triacylglycerol). You need to show how each part of the fat molecule is made from glucose; use the metabolism map and arrows to trace the appropriate paths. [2 points)
what do you think about following paragraph: You made a good suggestion in the Follow-Up phase...
what do you think about following paragraph: You made a good suggestion in the Follow-Up phase related to end users and making sure they use their devices correctly. The best way to accomplish this is by providing them with appropriate data security training. As mentioned in the textbook and in many other classes we have taken so far, most attacks are targeted at end users and not necessarily the technology. It is much easier for a hacker to get a...
2. All lipoproteins are made up of proteins, triglycerides, and cholesterol. Why are low-density lipoproteins (LDL)...
2. All lipoproteins are made up of proteins, triglycerides, and cholesterol. Why are low-density lipoproteins (LDL) considered unhealthy, and people encouraged to lower LDL, while high-density lipoproteins are considered healthy and people encouraged to increase HDL?
1. Draw one string of ten (10) phospholipids. Label the hydrophilic heads and the hydrophobic tails. (3 points) chrohobia hrudiephilic CH₂-CH-CH 2. What are the basic components of one phospholipid molecule? (3 points) 3. Draw a phospholipid bilayer. Label the hydrophilic heads and the hydrophobic tails. (3 points) 4. Cell membranes are made of phospholipid bilayers. Why is it important for there to be both hydrophilic and hydrophobic components of the membranes that surround all of our cells and organelles?...
4. Describe a reason why there is a constraint on cell size. 1 pt In that context, explain how eukaryotic cells are able to be 10Xlarger than prokaryotic cells. 1 pt 5. Consider a eukaryotic cell making two different proteins: one protein functions within the mitochondria and the other is secreted outside of the cell. The genes encoding the two proteins are transcribed and the two types of mRNA are released into the cytoplasm for translation How will the production...
Suppose the total demand function for a good was made up of 10 identical, individual demanders all with a demand function given by: 10 0.2P Find the inverse, total demand function and fill in the missing values below. P 50 (Round to the nearest two decimal places if necessary.)
2) Explain why nearly all fatty acids made in animals contain an even number of carbons. (Think synthesis; 2+3-4). [1 point] 3) Detail how excess sugar is converted to fat (triacylglycerol). You need to show how each part of the fat molecule is made from glucose; use the metabolism map and arrows to trace the appropriate paths. [2 points)
2. All lipoproteins are made up of proteins, triglycerides, and cholesterol. Why are low-density lipoproteins (LDL) considered unhealthy, and people encouraged to lower LDL, while high-density lipoproteins are considered healthy and people encouraged to increase HDL?
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago