Biology, 05.11.2019 04:31 adantrujillo1234

How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater?

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It would shrivel, because the salt will come in and water will come out of the cell because it is in a hypotonic solution.

Answer from: nothingworksoutforme

The amoeba of fresh water in seawater (being this hypertonic) water will flow out of the cell, the contractile vacuole will contract more to release the water and the cell will shrink. In extreme case it will be lysed.

Explanation:

The extracellular matrix of bacteria, fungi, algae and plants is called. The cell wall or extracellular matrix is located outside the plasma membrane and is the cell compartment that mediates all cell relations with the environment. In addition, it protects the contents of the cell, gives rigidity to the cell structure and in the case of fungi and plants, the cell wall defines the structure and gives support to the tissues.

During the phenomenon known as plasmolysis, which is the separation of the living protoplast from the cell wall by a hyperosmotic effect, the physical interaction between the cell wall and the protoplast becomes evident, when this physical interaction is lost the cell is unable to respond to pathogen attack and loses its cell differentiation.

Answer from: Quest

answer: zinc is the substance which has a volume of 1.38 $cm^{3}$ .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e. $density = \frac{mass}{volume}$

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula $volume = \frac{mass}{density}$ .

hence, the volume of aluminium will be = $\frac{4.60}{2.70} cm^{3}$ which comes out to be 1.703 $cm^{3}$ .

similarly, volume of zinc, chromium, and nickel will be 1.378 $cm^{3}$ , 0.869 $cm^{3}$ , and 0.356 $cm^{3}$ respectively.

Answer from: Quest

Yes yes yes very good

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How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawa...