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3 years ago

What is the structure and functions of mammalian cells compartments

Biology

1 answer:

Nikolay [14]3 years ago

8 0

Answer:

The main organelles of a eukaryotic cell are the Nucleus,endoplasmic reticulum,Golgi apparatus,ribosomes,lysosomes,mitochondria and cytoskeleton

Explanation:

1.Plasma membrane : It is a outer most layer of a cell surrounds the cytoplasm and isolate a cell from its external environment.The internal oganelles of a eukaryotic cell are membrane bounded.

2.Cytoskeleton: It maintains cell shape.It is made up of microtubules,intermediate filaments and microfilaments inside the cytoplasm

3. Nucleus: It contains genetic material DNA which is binds with protein such histones .The other organelles description is given in the table format.

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explain how natural selecin oacting on allele frequencies of a gene that controls body coloraiton can result in populations of 3

Aleksandr [31]

Answer:

Answer below

Explanation:

Well when natural selection occurs, genes that don't benefit the speicies, or more accurately, harm it by ruining camoflague. Natural selection can result in one creature evolving into 3 different species when those creatures get put into different environments that promote genetic mutations that help them survive. After a long while of genetic mutations coming and going to adapt to their environment, those three members of the species are no longer the same species because they've all adapted to different environments.

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1 year ago

Which phrase best describes rough ER?

djverab [1.8K]

Answer:

mitochondria

Explanation:

3 0

2 years ago

1. The diagram below represents a cell and several

Ray Of Light [21]

Explanation:

(3) active transport

The molecules would be moving against their concentration gradient from a region of low concentration to a region of high concentration.

While cells facilitate the transport of molecules via movement across the cell membrane, there many different mechanisms. These include passive diffusion, facilitated diffusion, and passive transport. However some very large molecules require specialized type of active transport, which requires energy in the form of ATP, in order to move substances across the membrane against their concentration gradient.

Active transport is a mediated process that requires an energy input and the use of specialized membrane proteins to move against the concentration gradient. These proteins require energy in the form of adenosine triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules to alter the spatial location of the molecule. For instance, with Na+, K+ pumps in cell membranes.

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

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3 years ago

He line "My coins, cakes, cashews and candy" is an example of A. haiku. B. rhyme. C. simile. D. alliteration.

Sergio [31]

It is D. alliteration

Alliteration is when it has the same letter or sound

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3 years ago

Is the space between the bottom of the objective lens and the surface of the slide.

Svetlanka [38]

WORKING DISTANCE is space between the bottom of objective the lens and the surface of the slide.

The distance between front edge of the objective and the lens and the specimen surface ("with the surface of the cover glass in case of the cover glass objective lens") when the specimen is also focused.

The working distance (W.D.) which is determined by the linear measurement of the objective and front lens to the focal plane. In the general, the objective of the working distance decreases by the magnification and the numerical aperture of both increase. The working distance is the distance and from the front of the lens to be the focal plane

To know more about lens visit:

brainly.com/question/15969013

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4 0

1 year ago