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balandron [24]
3 years ago
10

Is Pinocytosis a form of passive transport?

Biology
1 answer:
aleksandr82 [10.1K]3 years ago
5 0

It's a passive form.

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The secretion of a signal molecule by a cell into the local environment
Elodia [21]

Answer:

paracrine signaling.

Explanation:

Chemical signaling between cells is one of the most important ways that activities of tissues and  organs are coordinated. The nervous system is the other major coordinating system in animals,  but even here chemical signaling is used between adjacent neurons. The mechanisms involved are  described as either being paracrine, autocrine, intracrine, endocrine, neuroendocrine or  pheromones. Paracrine signals diffuse locally and act on neighboring cells.

5 0
3 years ago
If a small droplet of ordinary fat molecules is suspended in water, the fat molecules form a "ball of spaghetti" with no particu
kolbaska11 [484]

Answer:

Option 1, a charged end and a noncharged end

Explanation:

Complete question

If a small droplet of ordinary fat is suspended in water, the fat molecules form a "ball of spaghetti" with no particular orientation. But if a droplet of phospholipid molecules is put in water, all the molecules point outward, toward the water. Phospholipids are forced into this orientation because phospholipids have _____

  1.  a charged end and a noncharged end
  2.  three fatty acid molecules, all pointing in different directions
  3.  two fatty acid molecules pointing in different directions
  4.  both a saturated fatty acid and an unsaturated fatty acid
  5.  two charged ends

Solution

The structure of phospholipids consists of the following groups and molecules –  

a) A glycerol molecule  

b) Fatty acids (2 in numbers) – It is hydrophobic as it is uncharged and non polar in nature

c) Phosphate group (with alcohol) – It is hydrophilic as it is negatively charged and polar in nature.  

When the phospholipids are placed in  water, the molecule rearranges itself in a way that the hydrophobic head face inside and the hydrophilic head face outside thereby forming micelles.

Hence, option 1 is correct

3 0
3 years ago
An elongated tailbone occurs rarely in some newborn children, What does the presence of a tailbone indicate?. a)That the tail wi
Marina86 [1]
The correct answer to this question is "b)That our early ancestors were tailed primates." An elongated tailbone occurs rarely in some newborn children. The presence of a tailbone indicate is that t<span>hat our early ancestors were tailed primates. </span>
4 0
3 years ago
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Wind can erode rocks especially in desert areas select all spheres that are interacting in this situation
Murrr4er [49]
Erosion is brought about by the forces of nature or human activity: water, wind, earthquakes, mining, quarrying, etc. In the desert, there is very little water that can cause weathering or erosion, so the most probable answer is wind or maybe even animal activity.
5 0
3 years ago
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What is a life half I’m so lost
DiKsa [7]

Answer:

the answer would be the 3rd answer

Explanation:

a half life is the time it takes for half of a radioactive substance to decay

I hope this helps :)

6 0
3 years ago
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