Every cell is covered by a membrane that separates the cell from its outside environment. A major component of a cell membrane is its lipid bilayer, which is made of phospholipids. Phospholipids consist of two hydrophobic fatty acids joined by a glycerol molecule to a hydrophilic phosphate group. In the cell membrane, the hydrophilic heads of the phospholipids face outward and the hydrophobic tails face inward.
How does the structure of phospholipids help them perform their function?
A.
It allows them to easily attach to substrates in the outside environment.
B.
It allows them to control the movement of substances into and out of the cell.
C.
It allows them to store energy and release it to the cellular environment.
D.
It allows them to store genetic information that can be used to make cell structures.
Answers: 2
Biology, 22.06.2019 03:30
In pea plants, the allele for inflated pod seed, i, is dominant over the allele for constricted pod seed, i. the punnett square shows a cross for this trait. which offspring will be homozygous dominant
Answers: 2
Biology, 22.06.2019 15:00
Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow
Answers: 1
Biology, 22.06.2019 19:00
What is the next step in muscle contraction after the actin changes shape
Answers: 2
Every cell is covered by a membrane that separates the cell from its outside environment. A major co...
Mathematics, 14.02.2021 05:30
Health, 14.02.2021 05:30
Mathematics, 14.02.2021 05:30
History, 14.02.2021 05:30
English, 14.02.2021 05:30
Mathematics, 14.02.2021 05:30
Mathematics, 14.02.2021 05:30
Computers and Technology, 14.02.2021 05:30
Chemistry, 14.02.2021 05:30
Mathematics, 14.02.2021 05:30
Mathematics, 14.02.2021 05:30