Write an essay that details the structure and function of a eukaryotic cell, how its cell membrane functions, and details of how that cell will carry out mitosis and meiosis.

Explanation:

Eukaryotic cells have a true well defined nucleus which is cells DNA is surrounded by a membrane. It contains cell organelles like plasma membrane, cytoplasm, ribosomes, nucleus, mitochondria, golgi bodies, peroxisomes, and vacuoles, these organelles are also the membrane bound. Organisms like protozoa, plants and animals exhibits the eukaryotic cells.

The cell membrane functions:

In the eukaryotic cells, nuclear membrane divided the contents of the nucleus from the cytoplasm of the cell, nuclear membrane is formed by the inner and outer membrane which provides the regulation of material in and out from the nucleus.

How the mitosis and meiosis carry out in the eukaryotic cells:

Eukaryotic cells carry out mitosis throughout their entire life to grow and replace the old and damaged cells. Some organism reproduce sexually through mitosis. Daughter cells are identically and genetically similar to the parent cells. Mitosis is divided into four parts: 1) prophase, 2) Metaphase, 3) Anaphase, 4) Telophase = Cytokynesis occurs at the end of telophase.

Meiosis is a special type of cell division that produces haploid gametes that is sperm and ova, It only occurs in the gonads cells in the organism during teenage or reproductive years. Meiosis is different in males and females : Spermatogenesis = In males four functional sperms are produced by meiosis.

Oogeneis = In females, due to unequal distribution of cytoplasm one large functional called ova and three small polar bodies are produced.

Stages of Meiosis: Meiosis I

Prophase I, Metaphase I, Anaphase I, Telophase I.

Meiosis II : Very similar to Mitosis.

Prophase II, Metaphase II, Anaphase II, telophase II.

Four different gametes are produced.

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answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c