1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
grigory [225]
3 years ago
14

Lipids in a bilayer can diffuse laterally at a relatively fast rate, but \"flip-flop\" from one leaflet to the other very slowly

without catalysis. Three protein families –flippases (or flipases), floppases, and scramblases – catalyze the movement of lipids across the bilayer. Sort each of the phrases as describing flippases, floppases, or scramblases. Choose the best, most-specific enzyme name. Note: If you answer any part of this question incorrectly, a single red X will appear indicating that one or more phrases are sorted incorrectly.Not ATP-dependent, Activation may result in increased membrane lipid symmetry, ABC transporter, translocate lipids from outer (extracellular) leaflet to inner (cytosolic) leaflet, translocate phosphatidylserine, preventing apoptosis and engulfment by macrophages, move phospholipids from inner (cytoplasmic) leaflet to outer (extracellular) leaflet, move phospolipids across the lipid bilayer down the concentration gradient
Biology
1 answer:
natima [27]3 years ago
6 0

Answer:

  • flippases translocate lipids from outer (extracellular) leaflet to inner (cytosolic) leaflet,
  • floppases, move phospholipids from inner (cytoplasmic) leaflet to outer (extracellular) leaflet, ABC transporter, move phospolipids across the lipid bilayer down the concentration gradient
  • scramblases Not ATP-dependent, Activation may result in increased membrane lipid symmetry, translocate phosphatidylserine,  preventing apoptosis and engulfment by macrophages,  

Explanation:

Flipases are transportes that require energy for their functioning (ATP dependent) beause they move phospolipids across the lipid bilayer against the concentration gradient  (from extracellular side to cytosolic side).

Floppases are ABC transporters, opposite than flippases (move phospholipids from the cytosolic side).

Scrablases are bidirectional transporters, responsible for asymmetry formation. It also enables exposure of phosphatidylserineon the outer leaflet when it is necessary.

You might be interested in
An open fracture is most accurately defined as a fracture in which emt
Naddik [55]
An open fracture is most accurately defined as a fracture in which the overlying skin is no longer intact. A fracture is normally the break in the continuity of the bone. It is also called a compound fracture, in which  the fracture is an open wound or break in the skin near the site of the broken bone. Immediate treatment for an open fracture focuses on preventing infection at the site of the injury. 
8 0
3 years ago
g What technique of genomic library construction allows the genome to be cut by a given restriction enzyme at some but not all r
spayn [35]

Answer:

Which DNA is restricted to making a genomic library? Explanation: Total genomic DNA of an organism is digested using restriction endonuclease and the fragments are inserted into a suitable phage

5 0
4 years ago
What is a part of the central dogma? A.RNA is a single stranded molecule. B.DNA is used as a template to make RNA. C.RNA contain
arsen [322]
<span>"DNA is used as a template to make RNA" is a part of the central dogma of molecular biology.</span>
7 0
3 years ago
Read 2 more answers
A student wishes to measure the speed of a toy car at the bottom of an inclined plane. Which information is needed to calculate
stepan [7]

Answer:

c) the length of the inclined plane and the time for the car to descend the inclined plane.

Explanation:

8 0
3 years ago
Who first recognized the cell as the universal unit of life?
Kobotan [32]
The correct answer is D: Schleiden and Schwann
3 0
3 years ago
Other questions:
  • Which of the following is not one of the four basic types of tissue in humans? a. connective c. nerve b. muscle d. phloem Please
    13·2 answers
  • Because of apoptosis, _________________________.
    5·1 answer
  • A diagram of the digestive system is shown below.
    11·1 answer
  • Which part of cannabis contains the least amount of thc?
    6·2 answers
  • Who first identified DNA? A) Rosalind Franklin B) Erwin Chargaff C) Friedrich Miescher D) James Watson
    14·2 answers
  • Which genetic variation is shown below?
    13·1 answer
  • Explain how bacteria develop resistance to antibiotics
    13·1 answer
  • Emt people answer these what are the answers to these
    12·2 answers
  • How to get a small loan??
    10·1 answer
  • A researcher determines an organism to be eukaryotic, unicellular, and autotrophic. In which taxonomic group should this organis
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!