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mojhsa [17]
3 years ago
12

Sodium ions are more highly concentrated outside the cell, in the extracellular fluid. Which process would be used to return any

sodium ions that leaked into the cell back to the extracellular fluid:
A. active transportB. osmosisC. facilitated diffusionD. ecocytosisR. simple diffusion
Biology
1 answer:
VashaNatasha [74]3 years ago
5 0

Answer:

The correct answer is A. active transport

Explanation:

There are two types of transport which helps in the transport of molecules across the cell membrane. These are active transport and passive transport. In passive transport, the molecules move across the membrane without any energy expenditure and down their concentration gradient.

In active transport, molecules move against their concentration gradient with the help of ATP so in active transport, molecules can be present in high concentration outside or inside the cell.

Sodium is an ion that moves by active transport in and out of the cell with the help of sodium-potassium pump so it's so the correct answer is A.

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Why did Mendel use pea plants in his experiments?
Troyanec [42]
Usually to study genetics mendel used pea plants because of the easy traits associated
3 0
2 years ago
An individual heterozygous for eye color, skin color, and number of eyes mates with an individual who is homozygous recessive fo
sukhopar [10]

Answer:

B) 1 black eyes, green skin, two eyes : 1 black eyes, green skin, one eye : 1 black eyes, white skin, two eyes : 1 orange eyes, green skin, two eyes : 1 orange eyes, white skin, two eyes : 1 orange eyes, white skin, one eye

Explanation:

Parentals:                     BbGgCc  x  bbggcc

The punette square diagram of the cross of these two parents is attached.

B = black eyes, b = orange eyes;

G = green skin, g = white skin;

C = two eyes, c = one eye

Progeny with BbGgCc genotype → black eyes, green skin, two eyes = 8

Progeny with BbGgcc genotype → black eyes, green skin, one eye = 8

Progeny with BbggCc genotype → black eyes, white skin, two eyes = 8

Progeny with bbGgCc genotype → orange eyes, green skin, two eyes = 8

Progeny with Bbggcc genotype → black eyes, white skin, one eye = 8

Progeny with bbGgcc genotype → orange eyes, green skin, one eye = 8

Progeny with bbggCc genotype → orange eyes, white skin, two eyes = 8

Progeny with bbggcc genotype → orange eyes, white skin, one eye = 8

So, if we will see them in the form of ratio then each of the genotype will be in the ratio of 1 i.e. black eyes, green skin, two eyes: black eyes, green skin, one eye: black eyes, white skin, two eyes: orange eyes, green skin, two eyes: black eyes, white skin, one eye: orange eyes, green skin, one eye: orange eyes, white skin, two eyes : orange eyes, white skin, one eye = 1:1:1:1:1:1:1:1.

So, in view of above option B is most appropriate.

Note: In a trihybrid cross, a total of 64 progeny types may be produced.

6 0
2 years ago
The hypothalamus communicates directly with which gland?.
Romashka [77]

The hypothalamus communicates directly with pituitary gland.

<h3>Hypothalamus?</h3>

Hypothalamus is a small part lied f the brain that is between the inferior and anterior of thalamus. This gland is linked up with the pituitary gland by the stalk-like infundibulum. The pituitary gland comprises of an anterior and posterior lobe and each love produce different hormones in response to signals from the hypothalamus.

posterior lobe contains the ends of nerve cells that is from hypothalamus. The hypothalamus transmitt the hormones directly to the posterior lobe via these nerves, and then the pituitary gland releases them.

Therefore, The hypothalamus communicates directly with pituitary gland.

Learn more about hypothalamus below.

brainly.com/question/1022285

5 0
2 years ago
Men cannot be carriers of ___________________ traits.
snow_tiger [21]

Answer:

Men cannot be carrier of recessive X linked trait as, it only contain X chromosome which means that the X linked traits are get inherited from mother which are get displayed. The female are expressed X linked disorder during homozygous for disorder and they become carriers. So that means that the traits are related with X chromosome are never be carried by the men.

8 0
3 years ago
How does the digestive system interact with the musculoskeletal system
asambeis [7]
The muscular system allows for movement within the body, for example, during digestion or urination. Smooth muscles in the gastrointestinal or GI tract control digestion. The GI tract stretches from the mouth to the anus. Food moves through the digestive system with a wave-like motion called peristalsis.
5 0
3 years ago
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