The paramecium discussed in class contained an organelle called the contractile
vacuole. This is the presumed precursor of the: - Correct answer-kidney
A cell that is anchorage-dependent for growth will also exhibit contact inhibition. -
Correct answer-true
In your own multicellular body, cells with different functions have different DNA. -
Correct answer-false
The contractile vacuole of the paramecium is possibly an evolutionary precursor of the
kidney. - Correct answer-true
The paramecium swims by way of using a flagella. - Correct answer-false
In order to examine cells which are smaller than can be detected by the human senses
what needs to be used? (pick the best answer). - Correct answer-tehcnology
Compared to bacteria which of the cell types below are not responsible for finding food -
Correct answer-Lymphocyte
Macrophage
Fibroblast
A cancer cell will be anchorage-dependent for growth and immortal. - Correct answer-
false
A normal cell is anchorage-dependent for growth and mortal. - Correct answer-true
A cell that is itself an organism must have a minimum of four needs presented in
lecture. List these four things. - Correct answer-a cell needs to find food, shelter,
reproduce, and mate
In your own multicellular body, different cells in your body have a division of labor
between them - Correct answer-true
What limits the paramecium from acquiring more complex functions? - Correct answer-
bio molecular machines
Write a few sentences that explain what limits an individual cell from becoming more
complex. - Correct answer-It has a limited number of biomolecular machines
In Cell Biology what can limit the progress of science? - Correct answer-technology
, A single-celled eukaryotic organism: - Correct answer-Has a limited number of
biomolecular machines.
Must find food, shelter, a mate and reproduce
Escape from predators
Comparing a single-celled eukaryotic organism with a multicellular organism such as
yourself identify the major difference from the list below. - Correct answer-Division of
labor
We are made up of ....% water - Correct answer-50-70%
Explain how the vesicles are carried from the Golgi apparatus to the plasma membrane.
- Correct answer-Proteins are synthesized by ribosomes and enter the rER (rough
endoplasmic reticulum) . Vesicles bud off from the rER and carry proteins to the Golgi.
The Golgi modifies proteins, and then the vesicles bud off from the Golgi and carry
modified proteins to the plasma membrane.
The plasma membrane gets new lipids from: - Correct answer-None of the above.
The ER is contiguous with the Golgi apparatus. - Correct answer-false
Explain the evolutionary origin of mitochondria. - Correct answer-It is thought that a
primitive proto-eukaryote engulfed a primitive proto-prokaryote good at making ATP and
this organism lived inside this larger cell and began making ATP for the cell
(endosymbiosis theory)
What is the difference between a triglyceride and a phospholipid? - Correct answer-
Triglyceride has 3 fatty acids attached to a glycerol backbone and a phospholipid has
two fatty acids plus a phosphate group attached to a glycerol backbone
Amino acids can be largely subdivided into two groups. What are the two groups? -
Correct answer-polar and nonpolar
Facilitated diffusion uses a channel protein to let components move down their
concentration gradient. - Correct answer-true
If something is soluble in water a of hydration forms around it and it is termed ... -
Correct answer-hydrophillic
What are the two functions of a membrane? - Correct answer-To partition water and to
compartmentalize enzymes to increase efficiency of chemical reactions
Draw a phospholipid and make sure the numbers of carbons are clearly identified. -
Correct answer-