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
sukhopar [10]
3 years ago
7

An experiment is designed to study the mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and

the pH of the solution is monitored. Samples of the cells are taken at intervals, and their sucrose concentration is measured. The pH is observed to decrease until it reaches a steady, slightly acidic level, and then sucrose uptake begins. Rank the steps from first to last. To rank items as equivalent, overlap them.
A proton Pump, using ATP, pumps protons outside.

Sucrose moves into the cell.

H+ moves down electrochemical gradient into the cell.

A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.

pH decreases.

The gradient becomes sufficient.
Biology
1 answer:
wolverine [178]3 years ago
6 0

Answer:

A proton Pump, using ATP, pumps protons outside

A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.

pH decreases;

The gradient becomes sufficient.

H+ moves down electrochemical gradient into the cell; Sucrose moves into the cell.

Explanation:

A proton Pump, using the energy of ATP hydrolysis, pumps protons outside the cell.

A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.

The continues outward pumping of protons by the proton pump causes the pH of the extracellular fluid to decrease

At some point the gradient becomes sufficient, and pH reaches a steady slightly acidic level.

H+ moves down its electrochemical gradient into the cell together with Sucrose through the hydrogen ion-sucrose co-transporter.

You might be interested in
2 Points
Masteriza [31]

Answer:

the is a- the cell membrane surrounds particles outside the cell

8 0
3 years ago
how could variation within the fish population help individuals survive their encounter with the dolphins?
Mkey [24]
The right answer for the question that is being asked and shown above is that: "The <span>variation within the fish population help individuals survive their encounter with the dolphins is that dolphins will tend to be with them and will be served as their own food."</span>
3 0
2 years ago
What is mining and why is it bad?
masha68 [24]

Answer:

Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef or placer deposit

Across the world, mining contributes to erosion, sinkholes, deforestation, loss of biodiversity, significant use of water resources, dammed rivers and ponded waters, wastewater disposal issues, acid mine drainage and contamination of soil, ground and surface water, all of which can lead to health issues in local populations.

6 0
3 years ago
Read 2 more answers
What is brain-freeze?​
hoa [83]

Answer:

As far as i know, it's when the nerves at the top of your mouth (or the roof) sense the cold.

Explanation:

This is different to you sensing cold in your fingers or other parts of your body as it is closer to the roof of your mouth making your nerve feel much more. Since those nerves are exposed to that cold so much more than most other parts (and are closer to the brain, which i'm not sure if it affects anything) you feel a freeze which most people think they feel at their brain, hence the name 'Brain freeze'

Hope it helps!

3 0
2 years ago
Read 2 more answers
What is the function of septum in human heart?
kaheart [24]

The septum of the heart is the dividing wall between the right and left sides of the heart.


That portion of the septum that separates the two upper chambers (the right and left atria) of the heart is termed the atrial (or interatrial) septum while the portion of the septum that lies between the two lower chambers (the right and left ventricles) of the heart is called the ventricular (or interventricular) septum.

Not sure this will be helpful to you at all

7 0
3 years ago
Read 2 more answers
Other questions:
  • What part of the bacterial cell aids in movement?
    15·1 answer
  • Riddle: I'm mostly made of water, but that's not all. I fill up the cell, from wall to wall.
    11·2 answers
  • the currency of a web resource can be evaluated by asking:A.is the information relevant to the topic being researched B.is newer
    11·1 answer
  • How does Earth's tilt affect climate?
    11·1 answer
  • The parts of the neuron​
    5·1 answer
  • What are the four components of biodiversity? Why is biodiversity important to (a) the earth’s life-support systems and (b) the
    8·2 answers
  • Why does natural selection act on the phenotypes rather than the genotype of an organism?
    9·1 answer
  • The upper arm bone is the what?
    13·1 answer
  • Can humans cause an imbalance in the food chain
    6·1 answer
  • Use the drop-down menus to correctly identify the steps in the water cycle Label a condensation evaporation precipitation
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!