Answer in 2 sentences. Describe the structure of a phospholipid and phospholipid bilayer. Answer in 2...

Answer in 2 sentences. Describe the structure of a phospholipid and phospholipid bilayer.

Answer in 2 sentences. How does the organization of membranes provide for transport and recognition.

Expert Solution

Answer of Question 1: Phospholipid molecule is made up of two a hydrophilic head which contain a phosphate group and two fatty acid tails which are hydrophobic in nature. These two components are usually remain joined together by a glycerol.

Phospholipid bilayer is consist of amphipathic phospholipids which have hydrophobic fatty acid tails and hydrophilic phosphate containing heads arranged in two layers.

Question of Answer 2:

The outer side and inner side of the plasma membrane contain hydrophlic phosphate heads while intermediate portion contain hydrophobic core these two layers are arranged in a head to tail fashion. These hydrophobic core allows only lipid soluble small molecules to pass while specific protein channels or receptors remain embedded in the plasma membrane which help in transport of ions or larger polar molecules by facilitated diffusion or by active transport.

gladiator answered 2 years ago

Describe the fluid mosaic model of the phospholipid bilayer.

what is the physiological importance and functions of the cellular phospholipid bilayer?

1. Describe the structure of a phospholipid. 2. What is the function of phospholipids? 3. What...

1. Describe the structure of a phospholipid. 2. What is the function of phospholipids? 3. What is cholesterol and what role does it play in the body? 4. What part of the nucleotide forms the backbone of a nucleic acid? 5. What does DNA stand for? RNA?

The membrane of a cell is made mostly of a phospholipid bilayer (with proteins and other...

The membrane of a cell is made mostly of a phospholipid bilayer (with proteins and other molecules embedded in it). Explain how the chemical properties of phospholipids make the cell membrane an effective barrier against ions while at the same time allowing non-polar molecules like oxygen to cross freely.

Explain step by step how a triglyceride would become a phospholipid bilayer.

Explain step by step how a triglyceride would become a phospholipid bilayer. Describe what bonds must be broken or formed (such as ester bonds) and what molecules are consumed or created (such as H2O) and what types of reactions these occur under (such as concentration reactions).Hint: Remember that a phospholipid bilayer must contain both phosphate and a polar head! Dont forget to mention what type of bond connects your phosphate to the glycerol, etc, etc!)

Which of the following would be expected to lower the Tm for a phospholipid bilayer? replacing...

Which of the following would be expected to lower the Tm for a phospholipid bilayer? replacing a lipid containing unsaturated fatty acids with one containing saturated fatty acids. replacing a lipid containing 18-C fatty acids with one containing 16-C fatty acids. adding ions to bind to charged groups in the polar head groups. decreasing the concentration of phospholipids.

1) How would you differentiate hydrophobic and hydrophilic portions of a phospholipid bilayer?

1) How would you differentiate hydrophobic and hydrophilic portions of a phospholipid bilayer? Explain the importance of hydrophobic and hydrophilic regions of a phospholipid bilayer. 2) What are some differences between the production of glucoses and gluconeogenesis, and why does gluconeogenesis require a higher amount of ATP? Utilize examples and thoroughly explain the differences.

If we added a high concentration (which will permeabilize the phospholipid bilayer) of strong detergents to...

If we added a high concentration (which will permeabilize the phospholipid bilayer) of strong detergents to beet samples, would this result in high or low absorbance value at 460 nm? Explain.

Why does the entropy increase when a lipid bilayer forms from phospholipid molecules?

What would happen to a lipid bilayer if: •Hydrocarbon chain length was reduced •Each phospholipid molecule...

What would happen to a lipid bilayer if: •Hydrocarbon chain length was reduced •Each phospholipid molecule were covalently linked to a hydrocarbon tail from the other side of the bilayer •The layer contained a mix of phospholipids—one with two unsaturated tails, one with two saturatedtails (would they interact with each other equally, or would you see some organizaion?)

Question