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bija089 [108]
3 years ago
15

Sharps are medium-length needles with round eyes. a. True b. False

Biology
1 answer:
Elodia [21]3 years ago
8 0
TRUE, with also sharp points
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8-4 Discounting the Transverse Carrier Model. At one time, membrane biologists thought that transport proteins might act by bind
Natasha_Volkova [10]

Answer:

The two main reasons are nonpolar core of the bilayer and the active transport.

Explanation:

The membrane is structured to have two outer layers that are polar and an inner layer that is nonpolar.

If a membrane protein is exposed to the solvent, i<em>t will also have a polar side. It would be very difficult for the polar face of the membrane to move through the nonpolar core of the bilayer.</em> Therefore, this model is not feasible.

One major form of transport, active transport, moves solutes up the concentration gradient. <em>The binding of a solute and then release on another side of the membrane would only work for facilitated diffusion because it would cause a net movement of solutes down the concentration gradient.</em> It is unclear how energy could be expended to drive this process in the transverse carrier model.<em> Therefore, the transverse carrier model does not explain active transport.</em>

6 0
3 years ago
What type of energy is coming into the food web?
Rufina [12.5K]

Answer:

The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during resp​iration in plants.

Explanation:

study hard

8 0
2 years ago
WHY (not how) is it possible for one organism to express genes from another organism? (i.e. an E.coli bacterial cell expressing
SCORPION-xisa [38]

Answer:

Because of the universality of the genetic code, the polymerases of one organism can accurately transcribe a gene from another organism.

6 0
2 years ago
Hibernating animals usually have low rates of metabolism. Periodically, they have episodes of arousal, where they rapidly increa
Alinara [238K]

Answer:

The protein is known as Uncoupling protein 1 (UCP1) that is present in inner mitochondrial membrane of brown adipose cells of mammals and other organisms undergoing hibernation.

Function:

  • The protein allows the organisms to produce metabolic heat that helps in the organism’s regulation of body temperature.
  • This protein can also serve as a source of carbon for the production of carbohydrates when organism faces the period of prolonged fasting and thus help the organism to survive.
  • The protein also helps in the movement of protons into the mitochondrial matrix that ultimately activate the electron transport chain and releases more and more heat for body’s maintenance.

Hope it helps!


7 0
3 years ago
What are these monomers
Sidana [21]

Answer:

Съжалявам не знам

Explanation:

благодаря за точките,

4 0
2 years ago
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