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Vlada [557]
3 years ago
15

What is the cell membrane made of?

Biology
1 answer:
Dmitry [639]3 years ago
3 0

Answer:

With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.

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The presence of which element would indicate that a star is going through a high mass star cycle
ollegr [7]
Do you have Any answer choices
5 0
4 years ago
Both alleles of a pair are the same, either both dominant or both recessive.
Sliva [168]

Answer:

Both Recessive

Explanation:

Because, when you say that they're both the same then that just gives clarity of them both being Recessive traits. So honestly, in my opinion, Both dominant alleles & both Recessive alleles are both the the same.

7 0
3 years ago
Which respiratory function describes the exchange of oxygen and carbon dioxide in the cells?.
9966 [12]

Answer:Cellular Respiration

Explanation:

Cellular respiration is the process by which cells produce energy, and is broken down into three more steps: glycolysis, Kreb’s cycle, and electron transport chain. Glycolysis requires glucose, two ATP, and NAD+, and two ADP, and produces two pyruvate, four ATPs, two NADH, and two H2O. The Kreb’s Chcle and thus the downstream electron transport chain require acetyl-CoA, one ADP, three NAD+, and one FAD, but pyruvate oxidation needs to happen prior to the Kreb’s Cycle, thus this is where the Oxygen is used and produced into two CO2.

5 0
1 year ago
In hogs, a dominant allele B results in a white belt around the body. At a separate locus, the dominant allele S causes fusion o
GREYUIT [131]

Answer:

D) B/b;S/s (x) b/b;s/s

Explanation:

Parent 1 : belted syndactylous sow

Since it is showing dominant phenotype for both the traits, it can either be BBSS or BbSs

Parent 2: unbelted cloven-hoofed

Since it is showing recessive phenotype for both the traits, it can only have bbss genotype

If we assume parent 1 to be BBSS all the resulting progeny with bbss will have dominant phenotype which is not the case.

If we assume parent 1 to be BbSs:

BbSs X bbss =

BbSs : belted syndactylous

bbSs : unbelted syndactylous

Bbss : belted cloven

bbss : unbelted cloven

The progeny will be produced in 1:1:1:1 ratio which means that each of them will make 25% of the population.

Hence, parent 1 will have BbSs genotype and parent 2 will have bbss genotype

7 0
3 years ago
For full activation of a cyclin-cdk complex, an enzyme called _______________ must phosphorylate an amino acid near the cdk acti
swat32

For full activation of a cyclin-CDK complex, an enzyme called CDK-activating kinase must phosphorylate an amino acid near the CDK active site.

CDK-activating kinase (CAK) actuates the cyclin-CDK complex by phosphorylation of an amino acid i.e. threonine residue 160 near the CDK active site.

CAK is a member of the CDK family and serves as a positive regulator of CDK1, CDK2, CDK4, as well as CDK6.

CDK activation needs two steps. Primarily, the cyclin should attach to the CDK and secondly, CAK should phosphorylate the cyclin-CDK complex on the threonine residue 160, that is situated in the CDK activation section.

To learn more about cyclin here

brainly.com/question/13327301

#SPJ4

8 0
2 years ago
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