Review pt. 9

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

In a hypotonic solution, a plant cell will ________.

become turgid

Diffusion is an example of ________.

passive transport

The act of a white blood cell engulfing a bacterium is ________.

phagocytosis

Facilitated diffusion across a biological membrane requires ________ and moves a substance ________ its concentration gradient.

transport proteins... down

Which of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?

active transport

Substances that plug up an enzyme's active site are ________.

enzyme inhibitors

When two solutions that differ in solute concentration are placed on either side of a selectively permeable membrane, and osmosis is allowed to take place, the water will ________.

exhibit a net movement to the side with lower water concentration

Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell. The presence of these organelles tells you that the environment ________.

is hypotonic to the protozoan

Diffusion ________.

proceeds until equilibrium is reached

Osmosis can be defined as ________.

the diffusion of water across a selectively permeable membrane


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