chapter 2 grade 9 advanced

The two cells that control the opening and closing of stomata are .............

Which of the following is present in a prokaryotic cell?

A key property of the plasma membrane is

............................... are specialized structures that carry out specific cell functions

If you have a random sample of a plasma membrane, how can you determine if this plasma membrane belongs to an animal or plant cell?

........................ small openings on leaves through which carbon dioxide, water, oxygen, and other gases pass.

What kind of solution is this ?

......................... reduce water loss from plants and prevent bacteria and other disease-causing organisms from entering the plant

A plant response that causes movement that is not dependent on the direction of the stimulus and it is reversible

.....................................pump uses the energy to transport three sodium ions out of the cell while moving two potassium ions into the cell

Which of those are the basic principles of cell theory?

......................... Increases in root and stem diameters

.......................... electrons are passed, or transmitted, through a specimen to a fluorescent screen

................................ the regulation of the internal environment of a cell or organism to maintain conditions suitable for life

A cell was first discovered by Robert hooke by using

What kind of root is this one ?

....................... : stick out from the plasma membrane to define the cell’s identity and help cells identify chemical signals

What kind of tropism is this ?

What kind of leaf venation is this?

What kind of diffusion by which some sugars can pass through the membrane ?

What kind of plant cell responsible for photosynthesis

............................. helps to prevent the fatty-acid tails of the phospholipid bilayer from sticking together

.......................is the process by which a cell surrounds a substance in the outside environment, enclosing the substance in a portion of the plasma membrane

Which of those sentence is TRUE ?