ASU Bio 181 Exam 1- Practice Questions with All
Correct & 100% Verified Answers| Actual Complete
Exam |Already Graded A+
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, their DNA is identical but different gene expression
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, they use cilia
In order to examine cells which are smaller than can be detected by the human senses what needs to
be used? ✔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
cancer cell is anchorage-independent for growth and immortal
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. Also be able
to escape predators.
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--the
number of biomolecular machines it can contain within itself
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 that a cell can contain and
limits it from being more complex. It has to do everything for itself. Also has a certain number of
parts with which to change its engineering, thereby changing its function.
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. One of the carbons from glycerol covalent links to
the head group.
Amino acids can be largely subdivided into two groups. What are the two groups? ✔Correct
Answer--polar/hydrophilic and nonpolar/hydrophobic
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--
What is the difference between a single-pass transmembrane protein and a 7-pass transmembrane
protein? ✔Correct Answer--A 7 pass TMP can open up to allow things in or out of the cell whereas
single pass TMPs cannot
It is a simple matter (i.e., thermodynamically favorable) for a vesicle to form from the endoplasmic
reticulum. ✔Correct Answer--false
Correct & 100% Verified Answers| Actual Complete
Exam |Already Graded A+
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, their DNA is identical but different gene expression
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, they use cilia
In order to examine cells which are smaller than can be detected by the human senses what needs to
be used? ✔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
cancer cell is anchorage-independent for growth and immortal
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. Also be able
to escape predators.
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--the
number of biomolecular machines it can contain within itself
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 that a cell can contain and
limits it from being more complex. It has to do everything for itself. Also has a certain number of
parts with which to change its engineering, thereby changing its function.
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. One of the carbons from glycerol covalent links to
the head group.
Amino acids can be largely subdivided into two groups. What are the two groups? ✔Correct
Answer--polar/hydrophilic and nonpolar/hydrophobic
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--
What is the difference between a single-pass transmembrane protein and a 7-pass transmembrane
protein? ✔Correct Answer--A 7 pass TMP can open up to allow things in or out of the cell whereas
single pass TMPs cannot
It is a simple matter (i.e., thermodynamically favorable) for a vesicle to form from the endoplasmic
reticulum. ✔Correct Answer--false
