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
Alex Ar [27]
2 years ago
5

A student put some drops of lugols iodine solution into the water in the beaker shown to the right the water turned red after a

short time the starch solution inside the dialysis tube and turn the black what function of the cell membrane was a student demonstrating
Biology
1 answer:
alekssr [168]2 years ago
4 0

Answer:

diffusion through a selectively permeable membrane

Explanation:

The cell membrane selectively allows certain substances to enter or leave a cell . This implies that cell membranes are selectively permeable; they allow some substances to pass through, but not others.

Direct transport of materials across the cell membrane is often passive. Passive transport does not require energy to occur. Passive transport is the movement of substances  from a region of higher concentration to a region of lower concentration. A concentration gradient is always required.

The diffusion through a selectively permeable membrane is an example of passive transport.

The iodine moves into the dialysis tube across the semi permeable cell membrane from a region of higher concentration to a region of lower concentration in response to a concentration gradient.

You might be interested in
Liquid water has a temperature range of
swat32
0 to 100 degrees Celsius
5 0
3 years ago
Read 2 more answers
Which would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for An extended period of tim
tensa zangetsu [6.8K]

The answer is that a unicellular organism would swell and burst.


In a hypotonic solution the water concentration of the cell's cytoplasm is lower then that of the hypotonic solution. If unicellular organism is exposed to a hypotonic solution, the water from the solution will enter the organism by the process called osmosis. The aim is to balance water concentration on the inside and outside of the organism. But, that water entering the cytoplasm of the cell will make pressure on the cell membrane. If the excess water cannot be removed from the organism, it will swell and burst.



4 0
3 years ago
What is predicted to happen if the permafrost in the arctic melts?
lawyer [7]
D. The decomposition Of plants will release enormous amounts of CO2
7 0
3 years ago
Read 2 more answers
What are two cues that people use to perceive depth?
Brut [27]
Binocular vision. Binocular vision is vision with two eyes, and the main cue for depth perception associated with binocular vision is retinal disparity. ... The disparity (difference) between these two retinal images (retinal disparity) can be used as a cue for depth/distance.
6 0
3 years ago
What is the largest portion of the brain?
kykrilka [37]

Answer:

c. Cerebrum

Explanation: is correct

7 0
2 years ago
Other questions:
  • This is a wetland food web. When the organisms you see here die, they become food for ____________, which help recycle matter ba
    11·2 answers
  • What substance diffuses across the membrane in osmosis
    12·1 answer
  • Some peeled pieces of apple were placed in distilled water and some in very salty water. The cells in the apple pieces will
    10·1 answer
  • A science classs is studying an organism. Using a microscope, the class observed that the cells have nuclei and chloroplasts. In
    9·1 answer
  • Point source pollution comes from sources that are___.
    7·2 answers
  • Determine which of the following plants are monocots and which of them are dicots.
    15·1 answer
  • Need help please don’t send any links.
    11·2 answers
  • 4. When a student eats a hamburger and then uses the energy from the
    13·1 answer
  • Phương pháp cố định mẫu
    5·1 answer
  • 3. A swamp ecosystem in Florida has alligators, turtles, boars, small and large Prish, aquatic birds, algae and patches of grass
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!