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Chamberlain College Of Nursing > Anatomy & Physiology > Week 2 Quiz 2 ANATOMY BIO 251/ANATOMY BIO 251_Verified Answers. $11.49   Add to cart

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Chamberlain College Of Nursing > Anatomy & Physiology > Week 2 Quiz 2 ANATOMY BIO 251/ANATOMY BIO 251_Verified Answers.

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Question 1.1. What are the nonpolar parts of phospholipids? (Points : 3) Phosphate-containing head groups Fatty acid tail groups Both the head and tail groups are nonpolar. Neither the head nor tail groups are nonpolar. Question 2.2. The polar portion of a cholesterol molecule, which forms hyd...

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  • April 20, 2022
  • 4
  • 2021/2022
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Question 1.1. What are the nonpolar parts of phospholipids? (Points : 3)
Phosphate-containing head groups

Fatty acid tail groups

Both the head and tail groups are nonpolar.

Neither the head nor tail groups are nonpolar.




Question 2.2. The polar portion of a cholesterol molecule, which forms hydrogen bonds with the polar
heads of neighboring phospholipids and glycolipids, consists of a (Points : 3)
–OH group.

–CH3 group.

–CH4 group.

–COOH group.

None of the above




Question 3.3. This type of membrane protein anchors cells to neighboring cells and to protein
filaments found outside or inside the cell. (Points : 3)
Transporters

Receptors

Ligands

Ion channels

Linkers




Question 4.4. Which of the following does NOT influence the rate of diffusion of a chemical across a
plasma membrane? (Points : 3)
Concentration gradient of the chemical across the membrane

Mass of the diffusing chemical

Distance that the chemical has to diffuse

Amount of ATP available




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