100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
BIOL181 week 2 quiz Questions with 100% Correct and Approved Answers Graded A++ $8.99   Add to cart

Exam (elaborations)

BIOL181 week 2 quiz Questions with 100% Correct and Approved Answers Graded A++

 5 views  0 purchase
  • Course
  • Biology
  • Institution
  • Biology

-?- involves the use of pre-existing gradient to drive the active transport of another solute. - CORRECT ANSWER -Secondary active transport -?- is a type of transport that involves pumping ions against a gradient using ATP as a source of energy. - CORRECT ANSWER -primary active transport 2 l...

[Show more]

Preview 3 out of 17  pages

  • August 14, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Biology
  • Biology
avatar-seller
Eddiestudy
BIOL181 week 2 quiz Questions with 100% Correct

and Approved Answers Graded A++
-?- involves the use of pre-existing gradient to drive the active transport of another solute. -

CORRECT ANSWER ✔✔ -Secondary active transport


-?- is a type of transport that involves pumping ions against a gradient using ATP as a source of

energy. - CORRECT ANSWER ✔✔ -primary active transport


2 leaflets of lipid bilayer are formed because of what? - CORRECT ANSWER ✔✔ -the polar

head groups of phospholipids can interact with polar interior and exterior of cell

3 main types of macromolecules that comprise plasma membranes are what? - CORRECT

ANSWER ✔✔ -proteins


carbohydrates

phospholipids


a (alpha) helix - CORRECT ANSWER ✔✔ -a type of protein secondary structure in which a

polypeptide forms a repeating helical structure stabilized by hydrogen bonds


A biological membrane that is fluid has what? - CORRECT ANSWER ✔✔ -individual

molecules that can move within the membrane

a disulfide bond between 2 cysteines in the same polypeptide chain can help to stabilize the -?-

structure of a protein. - CORRECT ANSWER ✔✔ -tertiary

,a disulfide bond can form between 2 cysteines located where? - CORRECT ANSWER ✔✔ -

within a polypeptide or between different polypeptide

a membrane protein that has a portion integrated into the hydrophobic region of the membrane is

called a what? - CORRECT ANSWER ✔✔ -integral membrane protein


a phospholipid molecule consists of what? - CORRECT ANSWER ✔✔ -a polar head and 2

nonpolar tails


a polypeptide is a chain of what? - CORRECT ANSWER ✔✔ -amino acids


a protein whose highest level of structure is tertiary structure contains what? - CORRECT

ANSWER ✔✔ -one polypeptide folded into its 3-dimensional structure


according to the fluid-mosaic model, membrane proteins and lipids are able to what? -

CORRECT ANSWER ✔✔ -to move relative to one another within a plasma membrane


active transport - CORRECT ANSWER ✔✔ -movement of a substance from a region of low

concentration to a region of high concentration with the aid of a transport protein and a source of

energy


active transport - CORRECT ANSWER ✔✔ -the transport of a solute across a membrane against

its gradient (from low to high), requires an input of energy, aid of transmembrane protein

all cells are surrounded by a what kind of membrane, meaning that the membrane allows the

passage of some molecules and ions but not others? - CORRECT ANSWER ✔✔ -selectively

permeable

, amino acid - CORRECT ANSWER ✔✔ -the building blocks of proteins, have a common

structure in which a carbon atom, called the a-carbon, is linked to an amino group and a carboxyl

group. the a-carbon is also linked to a hydrogen atom and a particular side chain


amino acids are categorized based on what? - CORRECT ANSWER ✔✔ -their side chains


amino group - CORRECT ANSWER ✔✔ --NH; positively charged at neutral pH; connects to

the backbone and a-carbon

an amino acid may be described as -?-, -?-, or -?- based on the chemical properties of its -?-

chain. - CORRECT ANSWER ✔✔ -a. nonpolar


b. polar uncharged

c. polar charged

d. side

an animal cell is placed in a hypertonic medium. Predict which way water will move. -

CORRECT ANSWER ✔✔ -water will move from inside the cell to the outside


an animal cell is placed in pure water (which contains no solutes). In what direction will the

water move? - CORRECT ANSWER ✔✔ -water will move into the cell from the outside


antiporter - CORRECT ANSWER ✔✔ -2 solutes move in opposite directions


antiporter - CORRECT ANSWER ✔✔ -a type of transporter that binds two or more ions or

molecules and transports them in opposite directions across a membrane

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 Eddiestudy. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $8.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75323 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$8.99
  • (0)
  Add to cart