answer.
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
Tom [10]
2 years ago
6

Which of the following is a principle of the fluid mosaic model of cell membrane structure? a. Phospholipids consist of a polar

head and a nonpolar tail made of three fatty acid chains. b. The lipid bilayer is a solid at body temperature, thus protecting the cell. c. All proteins associated with the cell membrane are contained in a fluid layer on the outside of the cell. d. Phospholipids form a bilayer that is largely impermeable to water-soluble molecules.
Biology
1 answer:
krok68 [10]2 years ago
3 1

Answer:

The correct answer is option b. "The lipid bilayer is a solid at body temperature, thus protecting the cell".

Explanation:

The fluid mosaic model describes the fluid character of the cell's membrane structure as a dynamic arrangement of components that include phospholipids, proteins and carbohydrates. One of the principles of the fluid mosaic model is that the lipid bilayer that comprises the cell's membrane is solid at body temperature, thus it functions as a protective mechanism for the cell. The higher the temperature, the more fluid the cell membrane is.

Guest
1 year ago
You are incorrect. It is d: Phospholipids form a bilayer that is largely impermeable to water-soluble molecules.
You might be interested in
sometimes errors occur during transcription or translation. Examine the codon chart on the previous page.Notice that each amino
Marianna [84]
Please make sure that you post a complete question. This is the part missing:
- <span>How might this offset transcription or translation errors?-

The existence of several codons that code for the same amino acid ensure that even when a mistake in the processes of transcribing the sequence from DNA to mRNA or translational errors, there is still a significant chance of correct amino acid being added to the protein.</span>
4 0
2 years ago
The strand of dna used in the previous problem undergoes a mutation, such that the second c from the 3' end is changed to a
dlinn [17]
This mutation type is a substitution mutation. Substitution mutations may be silent or may have adverse effects (missense mutation).
Adverse effects come about because the change in codons in mRNA transcribed from the DNA strand. A point substitution can change the amino acid being coded for in the particular polypeptide change. If that animo acid is a structural residue of the protein, the structure of the protein will be altered, which may or may not lead to a change in protein function. If that particular amino acid is a catalytic residue of the protein, it may alter the 3D conformation and charge of the active site (if protein is an enzyme) or the binding site of protein. Function of protein formed from mutated DNA will be lost or altered.

Hope this helps! :)
6 0
2 years ago
A person eats a large pasta meal at lunch and then goes for a run before dinner. Explain how the body taps energy from this star
Ilia_Sergeevich [38]

Starches help give you an extra boost of energy during your workout. Starches, as well as sugars, eventually break down into glucose -- your body's main fuel source.

Explanation:

When you eat starchy foods, you'll have a supported energy level over a period of numerous hours. This is separate from sugars, which are simple polysaccharides that give you a quick surge of energy but do blank to keep your energy levels running.

5 0
2 years ago
Read 2 more answers
A particular group of brain cells seems to provide a basis for observational learning. Researchers call these specialized cells
Assoli18 [71]

Answer: mirror neurons

Explanation:

5 0
2 years ago
A botanist discovers a new species of plant in a tropical rain forest. Investigation of its anatomy and life cycle shows the fol
Dmitry_Shevchenko [17]

Answer:

Ferns

Explanation:

Ferns -

  • These the species of plant , that are found in the shady and rainy areas .
  • These classification of plant have a separate gametophyte, and sporophyte generations , where , the sporophyte is dominant .
  • No seed plants .

Hence , the correct answer according to the information given in the question is , Ferns .

5 0
2 years ago
Other questions:
  • Select all that apply.
    9·2 answers
  • Carine went to the doctor for a physical. Her blood pressure was 80/50. What describes Carine’s condition, and what is the most
    6·2 answers
  • Select all steps below that ensure laboratory safety during the experiment you carried out. Using test tube tongs to handle the
    9·2 answers
  • Drag the tiles to the correct boxes to complete the pairs.
    6·2 answers
  • Determine whether the description applies to landfills, incinerators, or both
    6·1 answer
  • What are the three domains of life? (Choose all that apply)
    11·2 answers
  • An organism inherits hits genetic instruction from the
    6·1 answer
  • Convert enzyme concentrations of 2.5%, 5.0%, and 10% to ppt units.
    6·1 answer
  • Describe the symbiotic relationship that exist between Cuckoo and warbler in an environment without predators
    5·1 answer
  • Special lymphatic vessels, called lacteals, absorb dietary __________ that are not absorbed by the blood capillaries.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!