Sphingosine Study guides, Class notes & Summaries

Karp Cellular and Molecular Biology Chpt 4 Exam Questions Correct Answers Plasma membrane - ANSWER- A selectively-permeable phospholipid bilayer forming the boundary of the cells lipid bilayer - ANSWER- Flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings. Explains 2:1 ratio of lipid to cell surface area fluid mosaic model - ANSWER- core lipid bilayer lives in a fluid state, capable of movement, with membrane prote...

C/P: What expression gives the amount of light energy (in J per photon) that is converted to other forms between the fluorescence excitation and emission events? "intensity of fluorescence emission at 440 nm excitation at 360 nm) was monitored for 20 minutes" A) (6.62 × 10-34) × (3.0 × 108) B) (6.62 × 10-34) × (3.0 × 108) × (360 × 10-9) C) (6.62 × 10-34) × (3.0 × 108) × [1 / (360 × 10-9) - 1 / (440 × 10-9)] D) (6.62 × 10-34) × (3.0 × 108) / (440 × 10-9) - ANSWERSC) (...

Biochem 2: Exam 1 Mastery Questions Saturated fatty acids are different to unsaturated fatty acids because they: A. have an even number of carbon atoms B. have short hydrophobic tails C. have no C=C double bonds D. exhibit free rotation about the carbon carbon bonds in the hydrocarbon tail E. mostly have cis double bonds - C. have no C=C double bonds Which of the following statements is FALSE? A. The longer the chain length of a saturated fatty acid, the higher the melting temperature ...

CHEM115 FINAL EXAM Question 1 Correct Mark 1 out of 1 Flag question Question text The organic product expected from the following reaction is: Select one: a. b. c. d. Feedback The correct answer is: Question 2 Correct Mark 1 out of 1 Flag question Question text Identify the nucleophile in this reaction. Select one: a....

Biochem 2: Exam 1 Mastery Questions Saturated fatty acids are different to unsaturated fatty acids because they: A. have an even number of carbon atoms B. have short hydrophobic tails C. have no C=C double bonds D. exhibit free rotation about the carbon carbon bonds in the hydrocarbon tail E. mostly have cis double bonds - C. have no C=C double bonds Which of the following statements is FALSE? A. The longer the chain length of a saturated fatty acid, the higher the melting temperature ...

Biochem 2: Exam 1 Mastery Questions Saturated fatty acids are different to unsaturated fatty acids because they: A. have an even number of carbon atoms B. have short hydrophobic tails C. have no C=C double bonds D. exhibit free rotation about the carbon carbon bonds in the hydrocarbon tail E. mostly have cis double bonds - C. have no C=C double bonds Which of the following statements is FALSE? A. The longer the chain length of a saturated fatty acid, the higher the melting temperature ...

Saturated fatty acids are different to unsaturated fatty acids because they: A. have an even number of carbon atoms B. have short hydrophobic tails C. have no C=C double bonds D. exhibit free rotation about the carbon carbon bonds in the hydrocarbon tail E. mostly have cis double bonds - C. have no C=C double bonds Which of the following statements is FALSE? A. The longer the chain length of a saturated fatty acid, the higher the melting temperature B. The difference in melting tempera...

Transport and structure of membranes  Amphiphilic lipids spontaneously form micelles and bilayers The major classes of the lipids are amphiphilic, having a hydrophobic part (typically a fatty acid, saturated or not) and a hydrophilic cater group. o Glycerophospholipid  they glicerin is acilated in sn1 and sn2 position; the sn3 position gets phosphorylated and could carry and additional head group. The acil chains on the other hand are hidrophobic o Sphingosine  a primary alcohol ...

Saturated fatty acids are different to unsaturated fatty acids because they: A. have an even number of carbon atoms B. have short hydrophobic tails C. have no C=C double bonds D. exhibit free rotation about the carbon carbon bonds in the hydrocarbon tail E. mostly have cis double bonds Correct Answer: C. have no C=C double bonds Which of the following statements is FALSE? A. The longer the chain length of a saturated fatty acid, the higher the melting temperature B. The ...

Lipid bilayers contain: 1) Phospholipids a. Phosphoglycerides b. Sphingolipids c. Inositol phospholipids 2) Glycolipids 3) Cholesterol Phospholipids are the most abundant membrane lipids The main phospholipids in eukaryotes are phosphoglycerides (3C-backbone and two long- chain fatty acid chains) Many different phosphoglycerides can be made by combining several different fatty acids and head groups. Most abundant ones are phosphatidylethanolamine, phosphatidylserine and phosphatidyl...