Comparing a single-celled eukaryotic organism with a multicellular organism such as yourself identify the major difference from the list below.
A. Escape
... [Show More] from predator
B. Finding a mate
C. Division of Labor
D. Find it's own food
E. Nucleus
C. Division of labor
The paramecium swims by way of using a flagella.
FALSE
The contractile vacuole of the paramecium is possibly an evolutionary precursor of the kidney.
TRUE
The paramecium discussed in class contained an organelle called the contractile vacuole. This is the presumed precursor of the:
A. Heart
B. Kidney
C. Liver
D. Mouth
E. Answer is not listed
B. Kidney
In your own multicellular body, cells with different functions have different DNA.
FALSE
A single-celled eukaryotic organism:
A. Has a limited number of biomolecular machines.
B. Must find food, shelter, a mate and reproduce
C. Escape from predators
D. None of the above
E. Answers A,B,C
E. Answers A,B,C
A cell that is anchorage-dependent for growth will also exhibit contact inhibition.
TRUE
In your own multicellular body, different cells in your body have a division of labor between them.
TRUE
Compared to bacteria which of the cell types below are not responsible for finding food"
A. Lymphocyte
B. Macrophage
C. Fibroblast
D. None of the above
E. Answers a, b, and c
E. Answers A, B, C
What limits the paramecium from acquiring more complex functions?
Limited number of biomolecular machines
A normal cell is anchorage-dependent for growth and mortal.
TRUE
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).
A. Patience
B. Hypotheses
C. Technology
D. A cell trap
E. None of the above
C. Technology
In Cell Biology what can limit the progress of science?
A. Lymphocyte
B. Progress
C. Eating
D. Bacteria
E. Technology
E. Technology
A cancer cell will be anchorage-dependent for growth and immortal.
FALSE
A cell that is itself an organism must have a minimum of four needs presented in lecture. List these four things.
Find food, find shelter, find a mate, and reproduce
Write a few sentences that explain what limits an individual cell from becoming more complex.
Limited number in biomolecular machines
What limits how big a cell can be?
A. Color
B. Wavelength
C. The surface area to volume ratio
D. Resolution
E. Type of electron microscopy.
The surface area to volume ratio.
TEM provides a thin, two-dimensional section of the object being studied.
TRUE
In an extant prokaryotic cell, the outer boundary of life is the capsule.
FALSE
The ancient earth did not contain much oxygen.
TRUE
Why is it important to know the limitations of technology?
Unable to view live cells under SEM magnification, Microscopy is limited with magnification.
DNA in extant prokaryotic cells is circular.
TRUE
Loss of the cell wall is required for the endosymbiotic theory.
TRUE
The cytoskeleton gave rise to the nuclear envelope.
FALSE
The presumed first step in the transition of the primitive, proto-prokaryotic cell into the primitive, proto-eukaryotic cell was the loss of the cell wall.
Group of answer choices
FALSE
List one limitation of the cell culture technique.
-Not all cells grow in culture
-Cells lose their histotype (in vivo shape) and 3-D structure of tissue is changed
-Metabolism likely changes
It is presumed that the peroxisomes evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells.
TRUE
A normal cell is ____________and _________________for growth.
Mortal
Anchorage-dependant
Motility improved the fitness of these early cells because:
It allowed them to make a nuclear envelope.
It caused them to acquire ribosomes.
It allowed them to move away from predators and towards food.
Two of the above.
None of the above.
It allowed them to move away from predators and towards food [Show Less]