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1 year ago

3. How can we use what we know about cell membranes to treat disease?

Biology

1 answer:

laiz [17]1 year ago

5 0

The cell membrane slows the movement of water into or out of the cell and this is vital when treating diseases.

<h3>What is a cell membrane?</h3>

The cell membrane provides protection for a cell and also provides a fixed environment inside the cell. It transports nutrients into the cell and transports toxic substances out of the cell.

The cell membrane is simply one of the major barriers that pathogens need to conquer e.g. a virus first needs to attach itself to the cell membrane and injects its genetic material into the host cell before replication.

Estrogens passively diffuse across the plasma membrane and then bind to their receptor proteins in the cytoplasm of the target cells.

When estrogen enters the nucleus, it binds to the estrogen receptor, causing it to pair up and form a dimer. Then this dimer then binds to several dozen specific sites in the DNA, strategically placed next to the genes that need to be activated.

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Can someone answer this pls??

Lunna [17]

Answer:

75% brown, 25% white

Explanation:

This question involves a single gene coding for color in chickens. The allele for brown color (B) is dominant over the allele for white color (b).

According to this question, a brown rooter with genotype 'BB' was crossed with a white hen (bb). The offsprings in the F1 generation will all possess the 'Bb' genotype and be brown colored. However, if these F1 offsprings are self-mated i.e Bb × Bb, the proportion of F2 offsprings will be 1BB, 2Bb, 1bb.

Since BB, Bb and Bb offsprings are Brown in color and bb is white in color, this means that the expected phenotypic appearance of the F2 offsprings will be:

¾ or 75% brown and ¼ or 25% white

8 0

3 years ago

Which example illustrates that individuals' lives are not entirely shaped by social structures?

Law Incorporation [45]

To illustrates that individuals' lives are not entirely shaped by social structures. Oprah Winfrey was born into poverty but rose to become one of the wealthiest people in America.

<h3>What are social structures?</h3>

The social structure. social structure is important from a sociological perspective because it influences how we behave. It can refer to a group's typical patterns, such as the relationships between men and women or students and teachers. Class Social. according to income, level of education, and standing in the field. Status.

Gender roles, the incest taboo, religious and healing rituals, mythology, marriage, language, art, dance, music, cooking, games, jokes, sports, birth and death because they involve ritual ceremonies as an accompaniment, etc. are examples of elements that may be considered cultural universals.

People learn how to function effectively in a society through a process known as socialisation.

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7 0

1 year ago

1. How do flowers help plants reproduce?

Molodets [167]

Answer:

B., D., A., A., C., D., D., A., D., C.

Explanation:

7 0

3 years ago

Read 2 more answers

In studying the gene pool of a population, you find that 21% of the population exhibits the recessive trait for eye color and th

Naily [24]

In order to solve this problem we use these formula:
<span>p2 + 2pq + q2 = 1p + q = 1p = % dominant allele in the population
q = % recessive allele in the population
p2 = % homozygous dominant individuals
q2 = % homozygous recessive individuals
2pq = % heterozygous individualsFrom the given, we haveq2 = 21%Simply taking the square root,q = 4.58%</span>

8 0

3 years ago

Lithified ash (or ash mixed with pyroclastic fragments) forms a volcaniclastic rock called a:________

sweet [91]

Lithified ash (or ash mixed with pyroclastic fragments) forms a volcaniclastic rock called a Tuff.

A form of rock called tuff is created when volcanic ash is blasted from a vent during an eruption.
The ash is transformed into a rock after ejection and deposition. Tuff is defined as rock with an ash content of more than 75%, whereas tuffaceous refers to rock with an ash content of 25% to 75%.
The thickness of tuff often decreases with distance from the volcano and is usually greatest close to the volcanic vent. The typical shape of a tuff deposit is that of a "lens," not a "layer."
Tuff may also be thickest on the vent's side that faces away from the wind or on the side facing the direction of the blast.

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4 0

2 years ago