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
N76 [4]
3 years ago
6

Water molecules are fairly small, and their small size allows them to diffuse passively across a cell membrane. Which type of pa

ssive transport is this?
A) Osmosis
B) Facilitated Diffusion
C) Endocytosis
D) Diffusion
Biology
1 answer:
Flauer [41]3 years ago
6 0

The passive transport used by water molecules to move across a cell membrane is called Osmosis.

In the case of water molecules, they do not require any specialized help to cross the cell membrane, for this reason, option B which indicates diffusion through the help of carrier proteins, is false. Option C is false as well given that Endocytosis is a form of active transport.

The remaining options are Diffusion and Osmosis. Though very similar, there is one key difference between the two. Diffusion occurs when particles move from a place of higher concentration to a lower concentration point, in order to achieve equilibrium.

The difference from Osmosis is that in Osmosis, the solvent particles can move without the need for other particles to move. This is the case for the small water molecules and because of this, the correct option is A.

To learn more:

brainly.com/question/21395644?referrer=searchResults

You might be interested in
If an inhibitory synapse fires at the same time and at the same distance from the initial segment as an excitatory synapse of th
Sergio [31]

Answer:

If an inhibitory synapse fires at the same time and at the same distance from the initial segment as an excitatory synapse of the same intensity there will be no changes in the potential in the firing zone.

Explanation:

Under normal conditions, the transmembrane potential depends on the ionic charges present in the intracellular and extracellular spaces. The extracellular space load is usually positive and in the cytoplasm is negative.

  • <u>Depolarization</u> occurs by opening ion channels that allow sodium to enter the cell, making the intracellular space more positive.
  • An opening of potassium channels releases this ion to the extracellular space, leading to <u>hyperpolarization</u>.

An excitatory synapse is one capable of depolarizing a cell and boosting the production of action potential, provided it is capable of reaching the threshold of said potential.

On the other hand, an inhibitory synapse is able to hyperpolarize the cell membrane and prevent an action potential from originating, so that they can inhibit the action of an excitatory synapse.

The interaction between two synapses, one excitatory and one inhibitory, -called synapse summation- will depend on the strength that each of them possesses. In this case, the intensity of both synapses being the same, there will be no changes in the membrane potential in the firing zone.

Learn more:

Excitatory and inhibitory postsynaptic potentials brainly.com/question/3521553

6 0
3 years ago
A horse has 64 chromosomes and a donkey has 62. Using your knowledge of meiosis, explain why a cross between a horse and a donke
nlexa [21]
Ok, so when a horse (with 64 chromosomes) is crossed with a donkey(that has 62 chromosomes), each parent give its child half of its chromosomes. [64/2=32] [62/2=31]. So the mule gets 31 pairs of chromosomes plus 32 pairs of chromosomes. That equals 63 total chromosomes. In order to be a parent, it must give <span>half of its chromosomes to its child. [63/2=31.5] You can't have half a chromosome, so the mule is a sterile organism. Let me know if you have questions.</span>
8 0
3 years ago
The study of the nature, structure, function, and diseases of the muscles is:
ICE Princess25 [194]
That would be myology. Myology is the study of the muscular system, wlong with its nature, structure, functions and diseases. It mainly deals with the three types of muscles found in the human body: skeletal muscles, smooth muscles, and cardiac muscles. Muscles are also categorized depending on whether or not they are voluntary or involuntary. Myology is concerned with the study of all this and much more.
6 0
3 years ago
The stage of spinal shock that follows spinal cord injury is characterized by a. absent spinal reflexes below the level of injur
IrinaVladis [17]

Answer:

The correct answer is  a. absent spinal reflexes below the level of injury.

Explanation:

Spinal shock strictly refers to the neurological condition that occurs immediately after a spinal cord injury, in which the loss of not only motor and sensory functions occurs, but also the abolition of all reflexes below the injury (reflexes of muscular or myotatic stretching and cutaneous reflexes). There is also flaccidity, loss of reflexes. It is characterized by hypotension associated with cervical or upper thoracic spinal injuries. This characteristic shock results from the lesion of the descending sympathetic pathway in the spinal cord, producing a loss of vasomotor tone and sympathetic innervation of the heart. This causes vasodilation of the affected area with accumulation of blood and a decrease in venous return to the heart as well as cardiac output.

7 0
3 years ago
What does "Biotic" mean?
max2010maxim [7]

Answer: Biotic means a living factor in the environment. The opposite would be abiotic, which is a non-living factor like light, pH, wind, etc.

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • How did primitive heterotrophs produce energy?
    12·1 answer
  • How can you use knowledge of a minerals chemical makeup or use
    13·1 answer
  • Which of the following might be symptoms of a lesion to the right motor cortex?
    5·1 answer
  • How did Charles Darwin study plants and animals? A.by making scientific models B.by experimenting in the laboratory C.by observi
    10·1 answer
  • which of the following individuals is most likely to allow a recessive lethal gene to be kept in a population over several gener
    14·2 answers
  • 15 POINTS!!
    10·1 answer
  • What is biology? and types?<br><br>​
    13·1 answer
  • Identify the correct term using the descriptions provided. A group of organisms of the same species that live in an area:.
    14·1 answer
  • On your own: Click Return to original settings and Restart. Investigate the effects of agriculture on
    15·1 answer
  • How would you classify an environmental emergency in which a child stepped on a sea urchin and got the spine embedded in his foo
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!