Unit 2: The Cell

Front 1

Diseases caused by eukaryotic parasites are much harder to treat than bacterial infections because:

1.They do not divide

2.Their cells are structurally similar to human cells

3.They don't have ribosomes

4.Their cells are larger than bacterial cells

Back 1

Their cells are structurally similar to human cells

Front 2

Given that a cell's structure reflects its function, which of the following functions do you think is characteristic of a cell with a large endoplasmic reticulum and golgi apparatus?

1.Movement

2.Secretion of antibodies

3.Fat storage

4.Rapid replication of genetic material

Back 2

Secretion of antibodies

Front 3

A scientist is studying a single celled eukaryote and the bacteria that live inside it. What organelles will she observe in both organisms?

1.Ribosomes

2.Nucleus

3.Endoplasmic reticulum

4.Both A and B are correct

Back 3

Both organisms have ribosomes

Front 4

While using a microscope to examine the cell of an unknown organism, you see that the cell has a nucleus, a cell wall, ribosomes and mitochondria. What kind of organism does this cell belong to?

1.Plant cell

2.Animal cell

3.Not enough information

4.Bacterium

Back 4

This organism is most likely a plant cell

Front 5

Which one of the following biomolecules is least likely to be a component of a cell membrane?

1.Carbohydrates

2.Nucleic Acids

3.Protiens

4.Lipids

Back 5

Nucleic acids (like DNA and RNA) are found primarily in the nucleus or cytoplasm

Front 6

If a cell is placed in a hypotonic solution such as pure water,what is likely to happen?

1.The cell will swell and may burst

2.The cell will shrink

3.The cell will remain at equilibrium and will not change in volume

Back 6

The cell will swell and may burst

Front 7

If a cell is placed in a very salty or sugary solution,it is likely to shrink. Why is this likely to happen?

1.The cell will shrink because the water will flow down the concentration gradient

2.The cell will shrink because ions and other particles will move out of the cell

3.The cell will shrink because salt ions or sugars will damage the cell membrane causing a leak

Back 7

Water will flow down the concentration gradient causing the cell to shrink

Front 8

What is the role of cholesterol in the membrane?

1.Transport materials across the membrane

2.Cellular identification

3.Adhesion

4.Help maintain fluidity

Back 8

Cholesterol helps the cell to maintain fluidity

Front 9

Transport proteins must be peripheral proteins.

1.True

2.False

Back 9

False. Transport proteins are integral proteins as they must go straight through the membrane

Front 10

A set of erythrocytes is placed in a beaker of 9% NaCl. The internal solute of the concentration of erythrocytes is 0.9%. What will happen to the cells?

1.Nothing

2.They will intake potassium ions to balance the outside sodium ions

3.They will shrivel

4.They will synthesize water

5.they will swell and burst

Back 10

They will shrivel, 9% NaCl is hypertonic sowater will flow out of the cell by osmosis

Front 11

Consider the following animal cells: antibody producing white blood cells, hormone producing cells, and intestinal cells producing digestive enzymes. Which organelles would NOT be abundant in them?

1.Gogi

2.Cytoskeleton

3.Rough ER

4.Ribosomes

Back 11

Cytoskeleton, it is mainly related to cell movement, attachment and transport

Front 12

What is the most Basic unit of structure and function in living organisms?

1.The cell

2.The nucleus

3.The plasma membrane

4.The atom

Back 12

The cell is the basic unit of life

Front 13

What is the function of the Golgi Apparatus?

Back 13

-determines the use of cell energies

-"post office" of a cell

-Enter cis face exit trans face

Front 14

What is the function of the Endoplasmic Reticulum?

Back 14

-surrounds the nucleus

-combines amino acids in sequence to make protein

-Rough ER- protein synthesis

-Smooth ER- Protein modification, detox and breakdown

Front 15

What is the function of the Mitochondria?

Back 15

-chemical energy conversion

Front 16

What is the function of the vesicles?

Back 16

-move things in and out of the cell

Front 17

What is the function of the lysome?

Back 17

-Disgestive compartment of the cell

-produced by the rough ER

Front 18

What is the function of the chloroplast?

Back 18

-contains- grana, stroma, and fluid- Has its own EDNA

-Photosynthesis

-seem to communicate with eachother

Front 19

What is the function of the Proplastid?

Back 19

-it is an undifferentiated plastid

Front 20

What is the function of an Etioplastid?

Back 20

-colourless chloroplast

Front 21

What is the function of an amyloplast?

Back 21

-starch storage organ

Front 22

What is the function of the chromoplast?

Back 22

-stores pigment of flowers and fruits

Front 23

What is the function of the Vacuoles?

Back 23

-carry objects

-protect cell from digestive enzymes

-counts for most of cell volume

Front 24

What is the function of the cell cytoskeleton?

Back 24

-provides cell shape

-organelle positioning

-cell motility

Front 25

What is the function of Centrioles?

Back 25

-microtubule organizing structure

-crutial for cell division

Front 26

What are microfilaments?

Back 26

-Build from actin

-plus end and minus end

-quickly built from one end deconstructed from both ends