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
Lina20 [59]
3 years ago
6

Which describes simple diffusion

Biology
1 answer:
Nataly_w [17]3 years ago
5 0

Answer:

Explanation:

Have you been through airport security lately? If you have, you’ve probably noticed that it’s carefully designed to let some things in (such as passengers with tickets) and to keep others out (such as weapons, explosives, and bottled water).

In many ways, airport security is a lot like the plasma membrane of a cell. Cell membranes are selectively permeable, regulating which substances can pass through, as well as how much of each substance can enter or exit at a given time. Selective permeability is essential to cells’ ability to obtain nutrients, eliminate wastes, and maintain a stable interior environment different than that of the surroundings (maintain homeostasis).

In the process of diffusion, a substance tends to move from an area of high concentration to an area of low concentration until its concentration becomes equal throughout a space. For example, think about someone opening a bottle of cleaning ammonia in the middle of a room. The ammonia molecules will initially be most concentrated right where the person opened the bottle, with few or no molecules at the edges of the room. Gradually, the ammonia molecules will diffuse, or spread, away from the place where they were released, and eventually you’ll be able to smell ammonia at the edges of the room. Ultimately, if the bottle is capped and the room is closed, the ammonia molecules will become evenly distributed throughout its volume.

You might be interested in
Which protists have cells walls and reproduce by forming spores
Diano4ka-milaya [45]

Answer:

Fungi-like protists.

Explanation:

7 0
3 years ago
Why is malnutrition in children cause of concern
krok68 [10]

because malnutrition causes various health issues and diseases, lowers your immune system, and causes death.

6 0
3 years ago
1. What is biodiversity?
Bas_tet [7]
I don’t know sorry, I hope the person above me is correct. If they’re not sorry I can’t help :(
7 0
3 years ago
Some people use the terms "cell cycle" and "mitosis" as if they were the same thing. Which of these best describes why they are
Komok [63]

Answer: C. Cells in meiosis have unique genetic information

Explanation: Meiosis is the cell division that forms four daughter cells from one parent cell. It includes two successive divisions called as meiosis I and meiosis II. Crossing over during prophase I of meiosis I imparts new gene combinations to the daughter cells of meiosis. Hence, daughter cells formed by the end of meiosis have some new gene combinations, that is, unique genetic information.

3 0
3 years ago
What is the typical number of parathyroid glands?
OleMash [197]
The typical number of parathyroid gland is four
6 0
3 years ago
Other questions:
  • Which area will most likely have a high average rainfall?
    9·2 answers
  • The answers in the blanks the answers in the blanks the answers in the blanka
    9·2 answers
  • The law of original horizontality states that
    14·1 answer
  • True or false. peripheral nerves extend from the spinal cord to all parts of the body. *
    10·1 answer
  • What is true about the struction of the plasma membrane
    11·1 answer
  • The overgrowth of algae on the surface of this water is caused by
    8·2 answers
  • Genetic instructions are passed down from parent to offspring through a cellular process called __________ .
    9·1 answer
  • How would a recycling center increase the strength of an electromagnet to be able to lift heavier objects?
    13·2 answers
  • What type of mutation occurred in the DNA in the table below?
    12·1 answer
  • The shorter the wavelength between waves the higher its
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!