All categories

3 years ago

what are the similarities and differences between facilitated diffusion and active transport by a protein pump

1 answer:

6 0

In facilitated diffusion, ions, sugars, and salts are transported across the membrane. In active transport, ions, sugars, and salts are also transported. The second similarity is that both facilitated diffusion and active transport use proteins as their means of transporting their materials to and from the cell.

You might be interested in

A project has a .7 chance of doubling your investment in a year and a .3 chance of halving your investment in a year. What is th

sergey [27]

Answer:

68.74%

Explanation:

To find the Standard Deviation:

First find expected return.

(0.7*100%)+(0.3*-50%) =70-15= 55%

Then the Variance.

[0.7*(1-0.55)^2]+[.3*(-0.5-0.55)^2]

=0.14175+0.33075

=0.4725

=47.25%

The Standard Deviation is the square root of the variance.

$\sqrt{0.4725}$

=0.6874

=68.74%

5 0

3 years ago

Summarize Bradford's description of the New World in the above passage. Use details from the passage to support your answer.

VARVARA [1.3K]

But even so, Bradford repeatedly characterizes the Native Americans as “bloodthirsty,” arguing that they're “savages” because of their ignorance of Christianity.

<h3>Why was Bradford exploring the new world?</h3>

In need of money, Bradford's Separatist group (who called themselves “Saints”) had been forced to join with so-called “Strangers,” people outside the church who were seeking economic opportunities in the New World.

<h3>What was William Bradford's view of nature?</h3>

All things stand upon them with a weatherbeaten face, and the whole country, full of woods and thickets, represented a wild and savage hue. Please note two interesting aspects of this quote from Bradford:

note how he characterizes nature as a hideous and desolate wilderness
full of wild beasts and wild men.

With this information, we can conclude that Bradford repeatedly characterizes the Native Americans as bloodthirsty.

Learn more about Bradford in brainly.com/question/27921353

#SPJ1

3 0

2 years ago

which statement best describes the difference between the sympathetic and parasympathetic nervous systems?

jenyasd209 [6]

Parasympathetic system calms you down lets all your organs have the same amount of oxygen delivered. The sympathetic system gets your muscles moving and makes you excited.

4 0

3 years ago

1) Discuss two neurotransmitters and their functions? 2) The central nervous system is comprised of what two structures? 3) What

wariber [46]

Answer:

1. dopamine and serotonin

2. brain and spinal cord

3. controls the function of different processes in the body

4. limbic system

5. Increase brain surface area

6. release hormones into the bloodstream

7. insulation

8. laughing has multiple positive functions in the body

Explanation:

Dopamine is a neurotransmitter (i.e., a chemical messenger) involved in responses to rewards, motivation and memory, while serotonin is another neurotransmitter that controls appetite, mood, wakefulness and sleep onset. The central nervous system (CNS) consists of the brain and spinal cord. The spinal cord acts as a conduit by which messages are sent from the brain to the body and from the body to the brain. Moreover, the brain acts to control all body abilities (e.g., thinking, talk, feeling, walking, breathing, etc). The autonomic nervous system is known to modulate different processes (e.g., blood pressure, digestion, breath) and internal organs (e.g., heart) by acting largely unconsciously, i.e., without a person's conscious effort. The limbic system is a part of the brain that acts to control emotions and memory by modulating autonomic/endocrine functions. Convolutions, folds, and fissures can increase brain surface area, thereby more neurons are packed into the cortex of the brain and thus it is possible to process more information. The endocrine system acts to release hormones into the bloodstream. These hormones travel in the blood to their target cells/tissues, where they regulate different functions (e.g., mood, growth, development, metabolism, reproduction, etc). The myelin is an insulating layer surrounding nerve cells that enables electrical impulses to transmit efficiently around the whole body. Laughing has multiple positive functions: release endorphin hormones that decrease stress, increases the number of immune cells and antibodies, stimulate the activity of internal organs (e.g., heart), quickly relax the muscles, contribute to increase the oxygen uptake rate in blood, etc.

8 0

3 years ago

1. Photosynthesis and cellular respiration are often described in two ways: (1) They are chemically opposite; and (2) They have

SVEN [57.7K]

Answer:

Photosynthesis and cellular respiration are chemically opposite. The reactants of photosynthesis are energy, carbon dioxide (6CO2), and water (6H2O). The products of cellular respiration are energy, carbon dioxide, and water. The products of photosynthesis are glucose (C6H12O6) and oxygen (6O2), and the reactants of cellular respiration are glucose (C6H12O6) and oxygen (6O2). So, the processes' equations are chemically opposite. The relationship between photosynthesis and cellular respiration is such that the products of one system are the reactants of the other. Without photosynthesis, cellular respiration couldn't take place, and without cellular respiration, photosynthesis couldn't take place. It's like a cycle.

Explanation:

6 0

3 years ago