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bija089 [108]
3 years ago
10

What is the role of phospholipids and proteins in controlling the passage of substances across the cell surface membrane, making

reference to its partially permeable nature.
Biology
1 answer:
Anastaziya [24]3 years ago
8 0
Phospholipids are the substance/structure that is the building block of the cell membrane. Without phospholipids, we wouldn't even have a cell membrane and wouldn't really have any way how to shield and guard or control th epassage of substances across the cell surface. The cell membrane is at the same time partially permeable; this means it will let certain ions that can be found in the intra and extracellular fluid in and out, while others will be kept from moving so freely. 
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An alleles is dominant is heterozygote when it is
Fittoniya [83]

An allele is dominant and heterzygote (Pp) when a dominant allele (P) is crossed with a recessive allele (p).

Explanation:

A dominant allele is the one with a particular dominant character or phenotype which dominates even though there are other alleles found.  

A heterozygous allele results from two different alleles coding for a gene.

A heterozygous dominant allele (Pp) results from the crossing of a dominant allele (P) with a recessive allele due to complete masking of the recessive allele (p).

For example, when dominant brown eyes are crossed with recessive blue eyes, in a heterozygous dominant allele results in brown eyes and masks the recessive blue eyes.

4 0
3 years ago
Please answer ASAP!!
Serhud [2]
That looks right to me


4 0
3 years ago
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a single stranded dna (oligonucleotides) can hybridize with (select one): select one: a. complementary dna b. complementary rna
garri49 [273]

A single stranded DNA  (oligonucleotides) can hybridize with (d) both complementary DNA and complementary RNA.

DNA is the Deoxyribonucleic Acid. It is the genetic material present in majority of organisms. The nitrogenous bases present in DNA are: Adenine, thymine, Guanine and Cytosine.  DNA is a double stranded structure hence it forms hydrogen bonds with a complementary strand. The complementary strand can be of a DNA or RNA.

RNA is the Ribonucleic Acid. It also is a genetic material present in very few organisms. RNA is less stable than the DNA and may be either single stranded or double stranded. The nitrogenous bases of RNA are: Adenine Uracil, Guanine and Cytosine.

To know more about DNA and RNA, here

brainly.com/question/3540768

#SPJ4

4 0
1 year ago
Which form of government would have the MOST amount of citizen participation?
geniusboy [140]
ANSWER:

A. Democracy

Explanation:

A democracy would have the most amount of citizen participation because in this type of government members of society have equal access to political power through voting and elections

I hope I was helpful :)
8 0
3 years ago
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Is there any scientific evidence about planet 9? Has it been discovered yet? Is there any type of life on it?
ahrayia [7]
I don't belev there will b another planet.....they took Pluto off cause it was too small to b co side red as a planet as there r lots of other stars or whatevr that size...I cud b wrong in this idk
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