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Phantasy [73]
2 years ago
7

DNA is made up of many smaller molecules called _____.

Biology
2 answers:
Sophie [7]2 years ago
5 0

DNA is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitro

its c nucleotides

drek231 [11]2 years ago
4 0
It’s B I think bro. Use a different app this one sucks
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What would happen if the cell membrane were completely made of a polar
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According to the science journal of mathematically correct science the entire cell would break down because of all the substances passing through it. Therefore after a while there would be no cell and the animal or plant would no longer exist. -approved by the scientists of massachusets - written by proffessor Gordon amphion

3 0
3 years ago
Read 2 more answers
Clathrin coated vesicles bud from eukaryotic plasma membrane fragments when adaptor proteins, clathrin and dynamin-GTP are added
KonstantinChe [14]

Answer: Clathrin cages assemble, vesicles form but cannot be pinched of but no disassembly occurs so the vesicles remain coated in clathrin.

Explanation:

Endocytosis is a cellular mechanism that allows the introduction of extracellular material into the cell. Clathrin-coated vesicles act to incorporate different molecules that are recognized by specific proteins located in the clathrin-coated pits. Upon invagination of a portion of the plasma membrane, the material is transported to its final intracellular destination.

<u>Clathrin is a protein that forms the lining of cell membrane microcavities where various receptors are located. Once a particle is recognized by the receptors, invagination of the plasma membrane occurs, which then fuses to form an endocellular vesicle.</u> When vesicle budding occurs, the vesicle is detached from its attachment to the membrane with the help of a GTPase protein called dynamin. Then, the vesicle is freed from clathrin by the action of a type of ATP-ase called Hsp70-ATP and docks to late endosomes that are immediate precursors of lysosomes, fusing the membranes of both. The fission of the clathrin-coated vesicle is controlled by the GTPase dynamin and it has been proposed that dynamin acts by generating the necessary force to strangle the "neck" and cleave the vesicles from the membrane. So they are mainly involved in the cleavage of newly formed vesicles from the membrane of one cell compartment, their orientation, and their fusion with another compartment. Also, without the dynamin, vesicles are not freed from clathrin.

<u>In the absence of dynamin, vesicles are formed but the membrane fusion or pinching off will not occur. Then, invaginated coated pits will be found.</u>

7 0
2 years ago
total saturation of protein transporters for a given solute in the renal tubules would result in __________.
MAVERICK [17]

Answer:

absence of that solute from the urine

Explanation:

6 0
1 year ago
The information of a new species can result from what?
Mars2501 [29]

Answer:

macroevolution or microevolution

8 0
3 years ago
When muscle tissue dies, it usually is replaced with dense collagenous connective tissue. How do these tissues differ in structu
Korolek [52]

Answer:

Damaged muscle tissue is replaced by fibrous scar tissue. This is called as 'Fibrosis'. Thicker than the surrounding tissue, scar tissue is paler and denser because it has a limited blood supply; although it takes the place of damaged or destroyed tissue, it is limited in function, including movement, circulation, and sensation.

Dense irregular connective tissue contains fibroblasts scattered amongst randomly oriented collagen fibers, whereas muscular tissues contain multinucleated muscle cells that are able to contract upon stimulation. Because the connective tissue cells cannot contract, the muscle will lose strength, and so muscle function will become impaired.

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