Membrane structures are maintained primarily by A.) Covalent Bonds B.) non-spontaneous assembly C.) Hydrogen Bond D.)...
Homework Answers
They are what holds the membrane in place, and what orients them
so that the phospholipid bilayer forms (where the phosphate heads
form 2 sheets, and the lipid tails point in towards each
other).
This also affects what can/can't pass through the membrane. Nothing
polar/ionic is going to get through w/o the cell's permission
(going through a channel/carrier/being/endocytosis)
Add Answer to:
Membrane structures are maintained primarily by
A.) Covalent Bonds
B.) non-spontaneous assembly
C.) Hydrogen Bond
D.)...
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d....
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d. ionic bonds 43. The slige What is oegative charge at one end of one water molecule is atracted to the slight positive charge of another water molecule. What s this attraction called? a covalent bond a hydirogem bond c an ionic bond The breaking of bonds between water molecules Water molecules absorb heat from the surface in order to acquire enough energy d a...
1. Which of the following amino acids has the most hydrophobic side chain? a). E b)....
1. Which of the following amino acids has the most hydrophobic side chain? a). E b). F c). S d). W e). Y 2. Which type of non covalent interaction would you expect to be present between Cl- and H2O? a). Ionic interactions ("salt links") b). Hydrogen bonds c). Van der Waals interactions d). Ion-dipole interactions For the first question, I have F and W both being hydrophobic chains but am unsure why or how to tell which one would...
18. The base pairs are held together primarily by a. Covalent bonds b. Hydrogen bonds c. lonic bo...
18. The base pairs are held together primarily by a. Covalent bonds b. Hydrogen bonds c. lonic bonds d. Gyrases 19. How many hydrogen bonds between Adenine and Thymine? a. b. 2 c. 3 d. 4 20. How many hydrogen bonds between Cytosine and Guanine? b. 2 d. 4 21. Which ones are weaker? a. Hydrogen bonds b. Covalent bonds 22. The nature of the double helix is that it is: a. Parallel arranged b. Perpendicularly arranged c. Antiparallel arranged...
AJ by oxygen Donas Bjoy nyarogen bonas ionic bonds D) by nonpolar covalent bonds Coy E)...
AJ by oxygen Donas Bjoy nyarogen bonas ionic bonds D) by nonpolar covalent bonds Coy E) by isotopes 29) Which answer below best describes H,0? A) Water molecule bonds are ionic bonds, in which electrons are gained and lost to create the bond. B) Water molecule bonds are oxygen bonds, in which oxygen atoms form bonds together. C) Water molecule bonds are polar covalent bonds, in which unequal sharing of electrons occurs. D) Water molecule bonds are nonpolar covalent bonds,...
5.. Why are some bonds considered polar covalent.. 6.. D efine hydrogen bond and the basis...
5.. Why are some bonds considered polar covalent.. 6.. D efine hydrogen bond and the basis for its formation.. 7.. Can noncovalent bond interactions between large molecules in a cell be stable,, and why 8.. What are the biological ma cromolecules in a cell,, their function s , and what smaller molecules (ssubunits)) comprise them..
What Intermolecular forces stabilize a lipid bilayer? A. covalent bonds B. disulfide bonds C. hydrogen bonds...
What Intermolecular forces stabilize a lipid bilayer? A. covalent bonds B. disulfide bonds C. hydrogen bonds D. peptide bonds E. ion-dipole interactions F. dispersion forces G. salt links
No need to show work 10) The HF bond can be classified as A) polar covalent B) nonpolar covalent C) ionic D) bent E)...
No need to show work
10) The HF bond can be classified as A) polar covalent B) nonpolar covalent C) ionic D) bent E) planar 11) Which is the most polar bond in the following list? A O-H B) S-O C) C-S D) I-I E) P-H 12) In the following list, which is the nonpolar molecule? A) H20 B) CCl4 C) HCI D) CH3F E) PC13 D) BF3 E) N2 13) In the following list, which is the polar molecule?...
5. Which of the following molecules form complex structures linked by covalent bonds through Lys, HyLys,...
5. Which of the following molecules form complex structures linked by covalent bonds through Lys, HyLys, or His residues? A) Collagen B) Alpha keratin C) Hemoglobin D) Myoglobin E) Beta barrels 6. Which of the following correlates to the classic experiment demonstrating that reduced and denatured RNase A could refold into the native form? A) Disulfide bonds do not stabilize folded proteins B) Reducing agents denature proteins C) 1° structure can determine 3° structure D) Urea cleaves disulfide bonds E)...
Which compound contains both ionic and covalent bonds? NaCN b) Naci c) HCI d) e) SO,...
Which compound contains both ionic and covalent bonds? NaCN b) Naci c) HCI d) e) SO, CO2 13) The following equations represent the formation of compound MX. What is the oH for the electron affinity of X (8)? X: (8) ► 2x () AH = 60 kJ/mol M(s) → MB) AH = 22 kJ/mol M (8) ► M' (g) + e- AH = 118 kl/mol X (8) + e. → X (g) AH = ? M' (g) + x (8)...
Which of the following can form a covalent bond between the two sequences under non-reducing conditions?...
Which of the following can form a covalent bond between
the two sequences under non-reducing conditions?
Sequences C and D
Sequences A and H
Sequences B and E
Sequences A and C
Sequences F and G
Which of the following sequences can form an alpha-helix
with hydrophobic residues only along one face of the helix, and
hydrophilic residues only along the other face of the
helix?
Sequence F
Sequence G
Sequence H
Sequence E
Sequence B
Which of the following...
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d. ionic bonds 43. The slige What is oegative charge at one end of one water molecule is atracted to the slight positive charge of another water molecule. What s this attraction called? a covalent bond a hydirogem bond c an ionic bond The breaking of bonds between water molecules Water molecules absorb heat from the surface in order to acquire enough energy d a...
18. The base pairs are held together primarily by a. Covalent bonds b. Hydrogen bonds c. lonic bonds d. Gyrases 19. How many hydrogen bonds between Adenine and Thymine? a. b. 2 c. 3 d. 4 20. How many hydrogen bonds between Cytosine and Guanine? b. 2 d. 4 21. Which ones are weaker? a. Hydrogen bonds b. Covalent bonds 22. The nature of the double helix is that it is: a. Parallel arranged b. Perpendicularly arranged c. Antiparallel arranged...
AJ by oxygen Donas Bjoy nyarogen bonas ionic bonds D) by nonpolar covalent bonds Coy E) by isotopes 29) Which answer below best describes H,0? A) Water molecule bonds are ionic bonds, in which electrons are gained and lost to create the bond. B) Water molecule bonds are oxygen bonds, in which oxygen atoms form bonds together. C) Water molecule bonds are polar covalent bonds, in which unequal sharing of electrons occurs. D) Water molecule bonds are nonpolar covalent bonds,...
What Intermolecular forces stabilize a lipid bilayer? A. covalent bonds B. disulfide bonds C. hydrogen bonds D. peptide bonds E. ion-dipole interactions F. dispersion forces G. salt links
No need to show work
10) The HF bond can be classified as A) polar covalent B) nonpolar covalent C) ionic D) bent E) planar 11) Which is the most polar bond in the following list? A O-H B) S-O C) C-S D) I-I E) P-H 12) In the following list, which is the nonpolar molecule? A) H20 B) CCl4 C) HCI D) CH3F E) PC13 D) BF3 E) N2 13) In the following list, which is the polar molecule?...
5. Which of the following molecules form complex structures linked by covalent bonds through Lys, HyLys, or His residues? A) Collagen B) Alpha keratin C) Hemoglobin D) Myoglobin E) Beta barrels 6. Which of the following correlates to the classic experiment demonstrating that reduced and denatured RNase A could refold into the native form? A) Disulfide bonds do not stabilize folded proteins B) Reducing agents denature proteins C) 1° structure can determine 3° structure D) Urea cleaves disulfide bonds E)...
Which compound contains both ionic and covalent bonds? NaCN b) Naci c) HCI d) e) SO, CO2 13) The following equations represent the formation of compound MX. What is the oH for the electron affinity of X (8)? X: (8) ► 2x () AH = 60 kJ/mol M(s) → MB) AH = 22 kJ/mol M (8) ► M' (g) + e- AH = 118 kl/mol X (8) + e. → X (g) AH = ? M' (g) + x (8)...
Which of the following can form a covalent bond between
the two sequences under non-reducing conditions?
Sequences C and D
Sequences A and H
Sequences B and E
Sequences A and C
Sequences F and G
Which of the following sequences can form an alpha-helix
with hydrophobic residues only along one face of the helix, and
hydrophilic residues only along the other face of the
helix?
Sequence F
Sequence G
Sequence H
Sequence E
Sequence B
Which of the following...
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