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jarptica [38.1K]
3 years ago
5

The functions of which cell structure are described in this list?

Biology
1 answer:
Dmitrij [34]3 years ago
6 0

Answer:

Eukaryotic Cell organelles

Explanation:

A .Plasma membrane:It is made up of phospholipid bilayer with embeded proteins.It protects the various cellular organelles from its exterior envirnnmentt.It is selectively permeable in nature..Due to its nature,the organic molecules,oxygen,water,other nutrients moves in and out through this membrane.The waste materials such CO2 and NH3 exits from this passage.

B. A Mitochondira.It is often called as the energy reservoir of a cell..Its a site of cellular  respiration.In Eukaryotes the respiratory pathways are either aerobic or anaerobic respiration depends upon the nature of a species.The number of mitochondria varies depends the energy requirements to a cell.The mitochondria is membrane bound organelle double inner and outer membrane.These layers are made up of phospholipid bilayers and proteins.The inner is folded called cristae.The regions within the cristae is called mitochondrial matrix here the citric acid cycle .Krebs cycle,glycolysis takes place In over all cycles 38 ATP is generated.

C.A lysosomes: It is absent in plant cells but present in animals cell also termed as waste disposal. Enzymes of lysosomes helps in the breakdown of proteins ,lipids  ,polysaccharides ,nucleic acids and damaged organelles.The lysosomes breaks down macromolecules and contains plenty of enzymes.

D.Endoplasmic reticulum: It’s a flattened sac like structure within the cytoplasm of a cell. It performs various functions but more specifically it synthesizes and modifies and transport proteins. There are two types of ER rough Er and smoothER .The RER synthesize proteins transports by the ribosomes.and the SER synthesize lipids.

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What happens immediately after a mass extinction to the diversity of organisms what happens thousands or millions of years later
nirvana33 [79]

Answer:

As lineages invade different niches and become isolated from one another, they split, regenerating some of the diversity that was wiped out by the mass extinction. The upshot of all these processes is that mass extinctions tend to be followed by periods of rapid diversification and adaptive radiation

5 0
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Epigenetics refers to a special kind of hereditary mechanism. Epigenetic changes do not change the DNA nucleotide sequence, yet
Greeley [361]

<u>Answer:</u>

The type of change that was responsible was “histone acetylation or DNA methylation”.

<u>Explanation:</u>

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Identify structures found in fungi. Check all that apply. produce spores contain pseudopods contain hyphae contain a fruiting bo
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Contains Hyphae, Spores, and Fruiting body

6 0
3 years ago
Read 2 more answers
In many animals, height is an example of a polygenic trait. Which types of natural selection can affect polygenic traits? I. dir
Marat540 [252]

The question is incomplete as it does not have the options which are:

I. only

I. and II. only

II. and III. only

I, II, and III.

Answer:

I, II, and III.

Explanation:

The mechanism of natural selection can be explained for the trait which is determined by one gene but the traits which can be determined by more than one gene like height (polygenic trait), the selection becomes very complex.

The natural selection can be explained by the phenotype produced in a population and that depends on the genes.  The polygenic trait shows the variation in the population, therefore, it is impossible to predict only one mechanism and therefore all types of natural selection occurs on a population.

Thus,  I, II, and III are correct.

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What would be expected to lower the Tm for a phospholipid bilayer?
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Replacing a lipid containing 18 C fatty acids with one containing 16 C fatty acids.

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