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
Ivahew [28]
3 years ago
14

Sodium ions, oxygen (O2), and glucose pass directly through lipid bilayers at dramatically different rates. Which of the followi

ng choices presents the correct order, from fastest to slowest?A. Glucose, oxygen, sodium ions.
B. Glucose, sodium ions, oxygen.
C. Oxygen, glucose, sodium ions.
D. Oxygen, sodium ions, glucose.
E. Sodium ions, glucose, oxygen.
F. Sodium ions, oxygen, glucose.
Biology
1 answer:
Elodia [21]3 years ago
4 0

Answer:

The correct order, from fastest to slowest, for the passage of molecules and ions through the cell membrane is oxygen, sodium ions, glucose (option D).

Explanation:

The plasma membrane is a lipid bilayer, with glycoproteins and membrane proteins, which constitutes a semi-permeable barrier to the passage of substances into and out of the cell.

The speed with which a substance can pass through the membrane depends on its chemical properties -hydrophilic substances pass through with greater difficulty than lipophilic ones- requiring in some cases specialized transport mechanisms. The different rates with which a substance passes depends on this.

  • <em>Oxygen (O₂) </em><em>passes through simple diffusion, depending on a concentration gradient. It's the molecule that passes through the membrane the fastest. </em>
  • <em>In second place, there would be the </em><em>Na⁺ ions</em><em> -charged atoms- that cross the membrane by facilitated diffusion, through specific ionic channels. </em>
  • <em>The </em><em>glucose</em><em> molecule, being larger, requires the use of transport proteins, being its passage through the membrane slower with respect to oxygen or sodium.</em>

Undoubtedly, molecular weight and affinity for the plasma membrane are determining factors for the passage of molecules through the lipid bilayer.

Learn more:

Simple diffusion and active transport  brainly.com/question/6420224

You might be interested in
Bees see the colors yellow and blue, but not red. Flowers that need to be pollinated by bees are mostly yellow of blue. What typ
Inga [223]

Answer:

Natural Selection

Explanation:

In natural selection process of evolution, traits that are essential for an individual to be fit enough to survive under environmental stress become dominant.

Since the flowers are of blue or yellow color, it is essential for a bee to be able enough to perceive the blue and yellow color. Hence, the eyes of bee with time have evolved to perceive these two color so that they can pollinate flower.

5 0
3 years ago
Which of the following disease theory is not explained by germ theory?
a_sh-v [17]
The answer is C. Cancer
7 0
3 years ago
Bacteria are important because they _______. (Please select all correct responses.) * 1 point
Lostsunrise [7]
I think its option b, may carry out nitrogen fixation.
8 0
3 years ago
Which hormone acts primarily on the uterus??
Monica [59]
Progesterone.
Hope this helps!
pls give Brainliest answer!
7 0
3 years ago
What is the use of protist in biological research?​
oee [108]

Answer:

The protists include plant-like organisms such as algae, animal-like organisms such as amoebas, and fungus-like organisms such as slime molds. They are also very important to us. ... The slime molds are important to ecosystems because they are decomposers, which release vital nutrients back into the environment.

Explanation:

4 0
3 years ago
Other questions:
  • Explain how meiosis promotes variation in a species.
    14·1 answer
  • Coal is made from the remains of dead plants. It is made of carbon and other elements. Is coal a mineral?
    13·2 answers
  • A cell containing 92 chromatids at metaphase of mitosis would, at its completion, produce two nuclei containing how many chromos
    5·1 answer
  • What is the texture and consistency of the dna? 2. why did we use a salt in the extraction solution? 3. is the dna soluble in th
    10·1 answer
  • 44. Which of the following choices is NOT a major component of vascular plant leaf anatomy?
    10·1 answer
  • Which series lists the correct order of steps of binary fission from first to last?
    15·2 answers
  • How does energy from the sun affect the motion of molecules in a gas compared to molecules in a liquid?
    11·1 answer
  • Calculate ​pH a decrease of one unit on the pH scale means a solution is ten times more acidic. a decrease of two units means th
    15·1 answer
  • Help it’s a test giving brainleist and like please fast
    13·1 answer
  • Help asppp!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!