Question

what is plasma membrane?
what is hypothesis?
what is hypotonic solution?


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Answer 1

Answer:

1.plasma membrane

nounBIOLOGY

a microscopic membrane of lipids and proteins which forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and regulates the passage of molecules in and out of the cytoplasm.

2) hypothesis is a proposed explanation for a phenomenon. For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it. Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories.

Explanation:

3)A hypotonic solution has a lower concentration of solutes than another solution. In biology, a solution outside of a cell is called hypotonic if it has a lower concentration of solutes relative to the cytosol. Due to osmotic pressure, water diffuses into the cell, and the cell often appears turgid, or bloated.

Answer 2

Answer:

The answer of your last question

Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.

exp:- the labour pushing the industrial machines

Work done on an object is defined as the product of the magnitude of the force acting on the body and the displacement in the direction of the force. W = F.s.

If a force acting on a body causes no displacement, the work done is 0.

Hope this will help you