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Vika [28.1K]
3 years ago
8

All of the following have been accomplished by space programs except-

Biology
1 answer:
erica [24]3 years ago
3 0

Answer:

D

Explanation:

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Particles that are too large to pass through the cell membrane enter and exit the cell by
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<span>Particles that are too large to pass through the cell membrane enter and exit the cell by Endocytosis and Exocytosis 

In short, Your Answer would be Option D

Hope this helps!</span>
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Cells and organelles can be measured with a microscope by means of
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Answer:

Eye piece graticule

Explanation:

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In an animal cell, what is the function of the lysosomes?
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<span><span><span>Release enzymes outside of the cell (exocytosis)</span>
which may serve the purpose of destroying materials around the cell.</span><span><span>Break-down 'digestion' of materials from inside the cell (autophagy)</span> 
i.e. by fusing with vacuoles from inside the cell. 
This could include digesting worn-out organelles so that useful chemicals locked-up in their structures can be re-used by the cell.</span><span><span>Break-down 'digestion' of materials from outside the cell (heterophagy)</span>
i.e. by fusing with vacuoles from outside the cell.
This could include breaking-down material taken-in by phagocytes, which include many types of white blood cells - also known as leucocytes. Specific mechanisms of heterophagy can be:<span><span>phagocytic - by which cells engulf extracellular debris, bacteria or other particles - only occurs in certain specialized cells</span><span>pinocytic - by which cells engulf extracellular fluid</span><span>endocytic - by which cells take-up particles such as molecules that have become attached to the outer-surface of the cell membrane.</span></span></span><span><span>Recycle the products of biochemical reactions that have taken place following materials being brought into the cell by endocytosis (general term for this 'recycling' function: biosynthesis) </span>
Different materials (chemicals) are processed in different ways, e.g. some structures may be processed/degraded within lysosomes and others are taken to the surface of the cell.</span><span>Completely break-down cells that have died (autolysis)</span></span>

In general, the functions of lysosomes involve breaking-down i.e. processing to 'make safe' or make use of, or removing from the cell e.g. by exocytosis, useless and potentially harmful materials such as old worn-out parts of the cell or potential threats such bacteria. Lysosomes can therefore be thought of as the rubbish disposal units within cel

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3 years ago
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Cells have different membrane carbohydrates if they do different
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Jobs- they have different jobs.
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1. What organism has the smallest number of chromosomes​
kondor19780726 [428]

Answer:

<em>1</em><em>. </em><em> </em><em>Smallest number: The female of a subspecies of the ant</em><em>.</em>

<em>2</em><em>. </em><em>Myrmecia pilosula, has one pair of chromosomes per cell. </em>

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