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
boyakko [2]
2 years ago
13

Explain why facilitated diffusion may need to occur and in what direction the particles diffuse in. Identify the molecules that

help in this process.
Biology
1 answer:
Goryan [66]2 years ago
6 0

Answer:

Sometimes molecules cannot move through the cell membrane on their own. These molecules need special transport proteins to help them move across the membrane. Facilitated diffusion is the diffusion of substances with the help of transport proteins in the plasma membrane. These special proteins are called channel proteins or carrier proteins, and they are attached to the cell membrane. In fact, they go through the cell membrane, from the inside of the cell to the outside. Facilitated diffusion is used for molecules that cannot diffuse rapidly through cell membranes on their own, even when the molecules are moving from high to low concentration areas. An example is the sugar plants and animals use for energy, called glucose. Even though facilitated diffusion involves transport proteins, it is still passive transport because the solute is moving down the concentration gradient so it does not require the use of cellular energy.

You might be interested in
How does photosynthesis and cellular respiration contribute to the carbon cycle?
lora16 [44]

Answer:

Cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.

Explanation:

4 0
3 years ago
I will give brainly!!!!
4vir4ik [10]

Answer:

b

Explanation:

Genetic Organization of Prokaryotes Aids Fast Generation Times. Compared to eukaryotes, prokaryotes usually have much smaller genomes. On average, a eukaryotic cell has 1000 times more DNA than a prokaryote. This means that less DNA must be replicated (copied) with each cell division in prokaryotes

6 0
3 years ago
Read 2 more answers
Poisons and salts are removed from the blood by the _____.
PtichkaEL [24]

Answer:

Kidneys

Explanation:

The kidneys remove wastes and excess water in the body through the urine, as urine flows from the kidneys to the bladder through two thin tubes located on both sides of the bladder called the ureter, and the bladder stores urine, and each of the kidneys consists of about one million filtering units called the renal tubular unit contains Each renal tubular unit has a filter called the glomerulus and tubule, and the renal tubular unit operates through a two-step process:

glomerulus: filters blood.  

Tubule: Returns the necessary substances to the blood and removes waste.

6 0
3 years ago
Read 2 more answers
What is a stationary location where volcanoes form when the convection in the asthenosphere creates a column of material that ri
Lyrx [107]

Answer:

The continental plate is the  location where volcanoes form when the convection in the asthenosphere creates a column of material that rises until it reaches the crust.

Explanation:

Volcanoes form at the edges of Earth’s tectonic plates. When the continental plate moves over the oceanic plate, it causes the oceanic plate to descend into the mantle where some of it melts, and the molten material moves into the mantle above the plate and causes the mantle to melt.

This liquid rock, called magma, rises to the surface because it is less dense then the surrounding rock, a volcano forms when the magma reaches the surface of the Earth at the continental plate.

6 0
3 years ago
Which range best describes the possible number of cells in one organism
Andru [333]

Answer:

ant to whale

Explanation:

7 0
3 years ago
Other questions:
  • Why is progesterone production in the corpus luteum important in the first trimester of pregnancy?
    12·1 answer
  • Which of the following would accompany a high-fat meal moving through the digestive system?
    10·2 answers
  • What are two examples of heat or pressure that can form metamorphic rock
    14·2 answers
  • what is the difference between single and a relationship? why people do like to be in a relationships?
    10·2 answers
  • Describe the structure and composition of the skin.
    12·1 answer
  • The molecules of life are all carbon-based.<br> True<br> False
    13·1 answer
  • A 16 N net force acts on a 4 kg rock. What is the acceleration of the rock? *
    8·2 answers
  • What view of the heart is this?
    11·1 answer
  • Newton’s 2nd Law of motion states –
    8·1 answer
  • Which invention allowed scientists to discover cells?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!