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Sloan [31]
3 years ago
12

Identify three structures which provide support and protection in a eukaryotic cell.

Biology
2 answers:
solniwko [45]3 years ago
8 0
The endoplasmic reticulum provides structure to the whole cell, or support, you could say.
The cell membrane protects the whole inside of the cell, and is the structure.
The cytoplasm provides support by holding everything up and it provides protection by surrounding all of the elements.

(I think)

I hope this helped
Mandarinka [93]3 years ago
7 0

Answer:

Cell Wall, Plasma Membrane and Peroxisomes.

Explanation:

  1. In the case of plant eukaryotic cells, a cell wall formed by cellulose is the main structure responsible for provinding resistance and protection to cells, especially against dehydration.
  2. All eukaryotic cells also have a semipermeable plasma membrane composed of a double layer of phospholipids, with the function of controlling the entry and exit of molecules, protecting the internal content of the cell.
  3. Peroxisomes are cellular organelles responsible for producing the catalase enzyme, which transforms toxic oxygenated water molecules that are toxic to cells into non-toxic water and oxygen molecules. In other words, it protects cells against intoxication by byproducts resulting from cellular metabolism.

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Using Figure 1 answer the following questions: What is the probability (enter a percentage) of producing an offspring with the f
FinnZ [79.3K]

Answer:

PP = 25%

Pp = 50%

pp = 25%

Explanation:

Using punnett square, we can predict the percentage probability of genotypes.

          P      p

P      PP     Pp

p     Pp     pp

In this cross we have,

PP  = 1/4 = 25%

Pp  = 2/4 = 50%

pp  = 1/4  = 25%

We have ratio,

1 : 2 : 1

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3 years ago
Which statement about climax community is true?
Svet_ta [14]
The answer to this question is c! Thanks for posting your questions!

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3 years ago
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Within a gymnosperm megasporangium, which of the following developmental sequences is correct, assuming fertilization occurs? Gr
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Within a gymnosperm megasporangium, the following developmental sequences that are correct, assuming fertilization occurs is: megaspore, female gametophyte, egg cell, sporophyte embryo. The last Option (Option D) is correct.

In gymnosperm megasporangium, the meiotic division produces four haploid megaspores from a single cell, three of which generally degenerate. The female gametophyte is formed by mitosis from the surviving megaspore.

Prior to fertilization, the male mature gametophyte needs to be transferred to the female gametophyte for fertilization to take place.

When the nuclei of the sperm encounter the nucleus of the egg cell in gymnosperms, it fuses with the egg nucleus to produce a diploid zygote.

Mitosis occurs in the fertilized egg to initiate the growth of a new sporophyte generation (the multicellular embryo of the seed.)

Therefore, we can conclude that we've understood the mechanism of developmental sequence in the gymnosperm megasporangium.

Learn more about the gymnosperm here:

brainly.com/question/4526473?referrer=searchResults

3 0
2 years ago
In the lungs, there are tiny sacs called alveoli. Gas exchange will need
Ierofanga [76]

When air is inhaled, oxygen diffuses from the alveoli into the blood to be used for respiration by the body’s cells. Carbon dioxide is a waste product made by the body’s cells during respiration.

5 0
3 years ago
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In how many ways can nine members of committee sit at the round table so that secretary and the joint secretary are always the n
MaRussiya [10]

Answer:

1440

Explanation:

Members except president, secretary and joint secretary = 9−3=6

Their arrangement = 6!

No. of arrangements of secretary and joint secretary at wto places

=2!=2

Total arrangement =2×6!

2 x 6! = 1440

7 0
3 years ago
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