How do contractile vacuoles help amoebas maintain homeostasis?

1 answer:

6 0

Single celled organisms such as amoebas, especially those that live in fresh water, continually gain water from their surrounding environment by osmosis. This water is pumped into a contractile vacuole which fills with fluid and periodically fuses with the cell membrane, releasing its contents to the exterior. Thus the amount of water actively transported out of the cell is equal to the amount of water entering the cell due to osmosis and there are no variations in the tonicity of the cell. This is homeostasis at a simple level. Without the contractile vacuole, the amoeba would continue to absorb water until its cytoplasmic contents were diluted to such an extent that metabolism no longer occurred and it would die.

You might be interested in

The humpback whale is a large marine mammal that lives wide spread throughout the North Pacific Ocean. Barnacles are small marin

hodyreva [135]

Answer:

commensalism

Explanation:

the barnacles benefit from the whale while the whale doesn't but the whale isn't harmed either

4 0

3 years ago

Read 2 more answers

What is photosynthesis.....???

zalisa [80]

Answer:

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Explanation:

-Dictionary

Hope this helped! :)

6 0

3 years ago

Read 2 more answers

5 5. Normally, the temperature inside the scrotum is slightly lower than normal body temperature. What do you predict would happ

serg [7]

Answer:

C. Sperm would not be able to develop properly.

Explanation:

There is an optimum temperature where sperm production is at its best. An increase or decrease in temperature may affect the quality and quantity of the sperm.

3 0

3 years ago

As a result of mitosis, the cells of a multicellular organism share which of these properties? Select two correct answers.

stealth61 [152]

Explanation:

multicellular organisms rely on mitochondria & getting food supplies by bloodstream...

3 0

3 years ago

During meiosis, errors occur during chromosome replication. Which term describes the rearranging of genetic material between non

7nadin3 [17]

Answer:

The correct answer is: translocation.

Explanation:

Translocations are <u>chromosomal abnormalities</u> that are caused by an error that can occur during meiosis <u>when a piece of a chromosome breaks off and it is attached to another chromosome that is not its homologous pair. </u>

There are two types of translocations when taking into account if there were a loss or gain of genetic material, or if it weren't. The type of translocation where there's no loss or gain of genetic material is called balanced, since the information is still there but in a different location.

5 0

3 years ago