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
Illusion [34]
3 years ago
5

The cell membranes of Antarctic ice fish might have which of the following adaptations? a. a high percentage of unsaturated fatt

y acids b. a high percentage of trans fatty acids no cholesterol c. a high percentage of very long chain saturated fatty acids
Biology
1 answer:
zubka84 [21]3 years ago
8 0

Answer:

c. a high percentage of very long chain saturated fatty acids

Explanation:

Saturated fatty acids do not have double bonds (they are saturated with hydrogens), so their tails are relatively straight. Unsaturated fatty acids, on the other hand, contain one or more double bonds, which often produces an elbow or bend. (You can see an example of an unsaturated bent tail in the phospholipid structure diagram that appears at the beginning of this article.) Saturated and unsaturated phospholipid fatty acid tails behave differently when the temperature drops:

- At colder temperatures, the straight tails of saturated fatty acids can be tightly bound, producing a dense and quite rigid membrane.

- Phospholipids with unsaturated fatty acid tails cannot bind so closely due to the bent structure of their tails. For this reason, an unsaturated phospholipid membrane remains fluid at lower temperatures than a saturated phospholipid membrane.

Most cell membranes contain a mixture of phospholipids, some with two saturated (straight) tails and others with a saturated tail and an unsaturated (folded) tail. <u>Many organisms — fish, for example — can adapt physiologically to cold environments by changing the proportion of unsaturated fatty acids in their membranes, that is, increasing the proportion of saturated long-chain fatty acids.</u>

In addition to phospholipids, animals have an additional component in their membrane that helps them maintain fluidity. Cholesterol, another type of lipid that is embedded between the membrane phospholipids, helps decrease the effects of temperature on fluidity.

You might be interested in
Drag the bars to the chart. Not all bars will be used.
LUCKY_DIMON [66]

Answer: this is the correct answer for PLATO

8 0
3 years ago
What is the source of carbon in BGC cycle​
Ludmilka [50]

  • Any change in the cycle that shifts carbon out of one reservoir puts more carbon in the other reservoirs.

3 0
3 years ago
An individual has an infection with an acid-fast organism. From a clinical standpoint, how
melamori03 [73]

Acid-fast bacteria or acid-fast bacilli can be defined as the group of bacteria that have the ability to resist their decolonization by the acids which are used during the staining process.

An infection that is caused due to an acid-fast organism indicates that the individual is suffering from Tuberculosis or other myobacterial diseases.

An acid-fast bacteria has many protective and invasive techniques which makes the infection difficult to treat, and thus, long-term course of antibiotics is needed for the treatment of such infections.

brainly.com/question/13216375

3 0
2 years ago
Despite inhabiting overlapping ranges, a mid-elevation and an alpine species of the monkey flower Mimulus do not interbreed, par
krok68 [10]

Answer:

No one cares how smart you are and the questions you ask why would ask this on a good website for answers when your so smart you can ask good questions but not answer it.

Explanation:

8 0
2 years ago
When was Barack Obama born
Lemur [1.5K]
August 4th, 1961.........................................
3 0
3 years ago
Read 2 more answers
Other questions:
  • A 4-year-old child is admitted to the pediatric unit with a tentative diagnosis of acute lymphocytic leukemia (all). the mother
    10·1 answer
  • What happens to a carbon atom transitioning between photosynthesis and respiration?
    5·1 answer
  • An adolescent presents to a community clinic for treatment of vulvar lesions associated with type 2 herpes simplex. which interv
    11·1 answer
  • Why is it important to control Burmese python population in Everglades national park? You need a strong argument and you need to
    13·2 answers
  • Explain why crops in the arctic grow larger than normal during the summer months
    5·2 answers
  • Which vessels vasoconstrict in response to epinephrine and norepinephrine? which vessels vasoconstrict in response to epinephrin
    7·2 answers
  • Members of the phylum ____ are considered by many researchers to be the living plants most closely related to vascular plants, b
    6·1 answer
  • A student is drawing a model of the carbon cycle. Which caption should he include to explain how herbivores contribute to the ca
    13·2 answers
  • (HELP ASAP I'LL GIVE YOU BRAINLIEST)
    6·1 answer
  • In which situation is the principle of cross-cutting relationships useful in determining relative age?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!