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Nimfa-mama [501]
3 years ago
5

What is the function of the cell membrane

Biology
2 answers:
son4ous [18]3 years ago
7 0

Answer:

The cell membrane keeps the cell together and protects it at the same time. It also helps give it shape, gives it structure to fit with other cells, and keeps foreign substances out/let certain substances in.

Explanation:

Hope this helps:)

PilotLPTM [1.2K]3 years ago
3 0

The cell membrane protects the cell from unwanted things coming inside. It is a barrier.  Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

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What structures form when many similar specializes cells come together
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Tissues form when many similar specializes cells come together.

The level of complexity in organisms from smaller to larger are:
Cells, tissue, organ, organ system, and organism finally.

Cells makes up tissue, tissue makes up organ, organs makes up organ systems, and organ systems makes up an organism.

Therefore, if the same type of cells come together, they'll make up tissue.
7 0
3 years ago
Which of the following best describes how plants obtain the materials necessary to perform photosynthesis?
Lerok [7]

Answer:The raw materials required for the process of photosynthesis are carbon dioxide, water and solar energy.

The carbon dioxide present in the atmosphere diffuses into the leaf through stomata.

Water is obtained from the plant roots.

Solar energy is obtained from the sun which gets trapped by the chlorophyll pigment present in the leaves.

Explanation:

6 0
3 years ago
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Gametes are produced by the process of
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Gametes are produced in meiosis, they are  a sperm or egg that is fused  together with another gamete to make a zygote.
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3 years ago
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1. Which of the following traits is not characteristic of animals?
PSYCHO15rus [73]
1. <span>composed of cells with cell walls
2. </span><span>Vertebrates contain a backbone, while invertebrates do not.</span>
5 0
3 years ago
Which of the following organelles is the principal and distinquishing feature of the eukaryotic cell? A. ribosomes B. chloroplas
dsp73

Answer:

E. Nucleus

Explanation:

All living organisms were classified into three major domains viz: Eukarya, Archaea and Bacteria. Eukarya are referred to as EUKARYOTES while the other two domains are collectively referred to as PROKARYOTES.

The major basis of this classification is the presence or absence of a membrane bound NUCLEUS. Eukaryotes are organisms characterized by the possession of a membrane-bound nucleus that houses their genetic material (DNA) while prokaryotes lack a nucleus and hence, their genetic material is found naked in the cytoplasm. Although, prokaryotic cells lack other membrane-bound organnelles like Chloroplast, mitochondria etc. but nucleus is the basis of this classification:

EU meaning TRUE, KARYA meaning NUCLEUS, hence Eukarya means organisms will true nucleus.

3 0
3 years ago
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