Biology 141 Delgado Test 2 Questions and
Answers (100% Pass)
The cell membrane is also called the ______ and is made of a
phospholipid _______ - Answer️️ -plasma membrane / bi-layer
The phospholipids have a hydrophillic (water attracting) _____ an
two hydrophobic (water repelling) ______ -...
Biology 141 Delgado Test 2 Questions and
Answers (100% Pass)
The cell membrane is also called the ______ and is made of a
phospholipid _______ - Answer✔️✔️-plasma membrane / bi-layer
The phospholipids have a hydrophillic (water attracting) _____ an
two hydrophobic (water repelling) ______ - Answer✔️✔️-head / tails
The head of a phospholipid is made of an alcohol and _____ group,
while the tails are chains of _______ - Answer✔️✔️-glycerol / fatty
acids
Phospholipids can move _____ and allow water and other _______
molecules to pass through into or out of the cell. - Answer✔️✔️-
sideways / non-polar
This is known as ________ because it does NOT require ____ and the
water or molecules are moving ____ the concentration gradient -
Answer✔️✔️-passive transport / energy / with
Another type of lipid in the cell membrane is ______ that makes the
membrane more fluid. - Answer✔️✔️-cholesterol
Embedded in the phospholipid bilayer are ______ that also aid in
diffusion and in cell recognition. - Answer✔️✔️-proteins
DELGADO COMMUNITY COLLEGE
Proteins called ____ proteins go all the way through the bilayer,
while _______ proteins are only on one side. - Answer✔️✔️-integral /
peripheral
Integral proteins are also called _______ proteins. - Answer✔️✔️-
transmembrane
Large molecules like _____ or carbohydrates use proteins to help
move across cell membranes. - Answer✔️✔️-proteins
some of the membrane proteins have carbohydrate _____ attached
to help cells in recognize each other and certain molecules. -
Answer✔️✔️-parts
List 4 functions of the cell or plasma membrane: - Answer✔️✔️-1.
Cell signaling
2. Selective transport
3. Remove wastes
4. Structural support
Attracts water - Answer✔️✔️-phosphate heads
Helps maintain flexibility of membrane - Answer✔️✔️-cholesterol
Involved in cell-to-cell recognition (2) - Answer✔️✔️-glycoprotein and
glycolipids
Repels water - Answer✔️✔️-fatty acid tails
2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SophiaBennett. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.49. You're not tied to anything after your purchase.