Can somebody please help ?

Pls help me fast I will mark u as the brainliast.pls help meeee

Andreyy89

Answer and Explanation:

The cell looks like a prokaryotic cell.
A prokaryotic cell might be recognized by the presence of flagellates used to move (the four long filaments located posterior to the cell). There are also many pili surrounding the cell wall (the small little filaments). There are almost no organelles. There is a circular DNI molecule concentrated in a nucleoid (which seems to be the grey oval in the middle of the cell). Prokaryotic cells also have different compartments that depend on the type of cells, such as chlorosome, carboxysome, phycobilisome, and others (which might be the dark spiral circle in the anterior part of the cell).
Two differences with the cell of an onion peel are that the onion peel cell has its genetic material surrounded and protected by the nucleus membrane, whereas the prokaryotic cell lacks a delimitated nucleus. Also, the onion peel cell has a hexagonal shape and lacks flagellates and pili, unlike the prokaryotic cell, which uses the to move. The onion peel is a multicellular structure, while the prokaryote is a one-celled organism.
There should always be a cover glass over the cell or tissue we are looking at. Fasten the slide with the stage clips. Move the lens carefully in order not to damage it or the slide. Do not touch or clean the lens with the fingers and try not to stain them.

3 0

3 years ago

What is meant by the following statement. the cell membrane is semipermeable?

aev [14]

Semipermeable means the cell membrane can pick and choose what goes out of it and into it. At least, that's what I believe it is.

3 0

3 years ago

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The prefix semi means "half," "partially," or "somewhat." explain why this prefix is appropriate for the term semiconductor.

lesantik [10]

Some of the time under some condition

3 0

3 years ago

When acetylcholine binds to receptors at the motor end plate, the end plate membrane becames:__________a. repolarized. b. more p

sladkih [1.3K]

Answer:

d. more permeable to sodium ions.

Explanation:

The binding of Acetylcholine with the receptors at motor end plate facilitate membrane permeability to sodium ions therefore opening of voltage gated channels for sodium ions.

Sodium ions diffused into the synapse of post synaptic neuron at the neuromuscular junction.

If the stimulus is up to threshold levels; more chemical(neurotransmitter) gated sodium channels opens, and sodium ions move into the synapse to depolarize the membrane with reversal of charges to generate action potential.

The continuous binding of Acetycholine , leads to permanent opening of sodium ions,and over excitation from depolarization. Acetycholinesterase enzymes breakdown Acetycholine to choline and Acetyl Co -A. These are recycle back to Acetycholiine

7 0

4 years ago

A student wrote the following observations in a field notebook: two grey wolves, five moose, several species of conifer trees, l

konstantin123 [22]

Answer:

Ecosystem

Explanation:

The answer would Ecosystem because Ecosystems consist of a geographic area where living animals, plants, animals, weather and landscape that work together to form a bubble of life.

You have the two wolves & five moose as animals, trees as landscape/plants, granite rock as landscape, shallow pond as landscape.

The wolves, moose, trees, rock, and shallow pond work together to create an ecosystem.

5 0

3 years ago

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