QUIMICA

What is a cell?

• a) An organism whose structure is made up of more than one cell

• b) An anatomical unit of living organisms, usually microscopic, formed by

  cytoplasm, one or more nuclei and a surrounding membrane

• c) A chemical substance released by nerve cells to send signals to other cells

• d) None of the above

Are the animal cells structurally more complex?

• True

• False

How many components do they have?

• a) 5-7

• b) 8–9

• c) 10–13

• d) All of the above

Are they typically round or have an irregular shape?

• True

• False

Do they have a cell wall?

• True

• False

What’s the function of the golgi aparatus?

• a)  Convert lipids into carbohydrates

• b)  Maintain a stable condition

• c)  Ensures that the proteins are functional

• d)  All of the above

What’s the function of the cytoskeletal elements?

• a) Assemble in the nucleus

• b) Provide the structural support for all cellular components

• c) Create proteins

• d) Create peroxisomes

What is the lipid bayer?

• a)  A chemical substance released by nerve cells to send signals to other cells

• b)  An organism whose structure is made up of more than one cell

• c)  An anatomical unit of living organisms, usually microscopic, formed

  by cytoplasm, one or more nuclei and a surrounding membrane

• d)  A thin polar membrane formed by two layers of lipid molecules

What happens in the cell membrane?

• a)  Release nerve cells to send signals to other cells

• b)  Cross the lipid bilayer from high concentration to low concentration

• c)  Is where the proteins are immersed

• d)  Pass through a membrane

What happens in the centrosome?

• a)  The structure is made up of more than one cell

• b)  A chemical substance is released by nerve cells to send signals to other

  cells

• c)  Proteins are immersed

• d) The microtubules are originated and extended throughout the

  cytoplasm