WGU C190- intro to biology, Unit 3
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Prokaryote - CORRECT ANSWER - small, simple, single-cell organisms.bacteria are the
most prevalent kind.
Eukaryotes - CORRECT ANSWER - larger, and most often they are multi cellular
organisms, including plants, animals and fungi.
Cell Membrane - CORRECT ANSWER - provides a barrier between the interior and
exterior of the cell and it regulates the flow of substances in and out of the cell.
Cytoplasm - CORRECT ANSWER - the space in which the chemical reactions that enable
life take place. it is the fluid that occupies the space inside the cell.
Ribosomes - CORRECT ANSWER - are the molecular machines that use the instructions
contained in the DNA to build all the proteins needed by the cell.
Unlike eukaryotic cells, prokaryotic cells:
A) have no plasma membrane
B) have RNA but not DNA
C) have no nucleus
D) all of the above - CORRECT ANSWER - C) have no nucleus
Antibiotics are medications that are used to fight bacterial infections in humans and other
eukaryotes. Consider the following statements; which one is probably true about antibiotics?
A) Antibiotics are only poisonous to prokaryotic cells.
B) Antibiotics are only poisonous to eukaryotic cells.
, C) Antibiotics are poisonous to all cells. This is why you shouldn't take antibiotics very often. -
CORRECT ANSWER - A) Antibiotics are only poisonous to prokaryotic cells.
You find a cell and examine it under a microscope. You are able to see that the cell has a
nucleus. What can you conclude about this cell?
a) the cell is a eukaryote.
b) you cannot draw conclusions given just this information.
c) The cell is a prokaryote. - CORRECT ANSWER - a) the cell is a eukaryote.
Which of the following structures is found in BOTH prokaryotes and eukaryotes?
a) Nucelus
b) Mitochondria
c) DNA
d) Ribosome
e) Cytoplasm - CORRECT ANSWER - Ribosome, Cytoplasm and DNA.
Nucleus - CORRECT ANSWER - Control center of the cell and it stores DNA.
nucelar envelope - CORRECT ANSWER - shell enclosing the nucleus that separates it
from the cytoplasm, is studded with pores that allow information from inside the nucleus to enter
the cytoplasm.
Cytoplasm - CORRECT ANSWER - A jellylike fluid inside the cell in which the
organelles are suspended.
mitochondria - CORRECT ANSWER - Powerhouse of the cell. converts fuel (glucose)
into a form of energy that can be captured to do work(ATP)
Chloroplasts - CORRECT ANSWER - Capture energy from sunlight and use it to produce
food for the cell. only found in plant cells.
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Prokaryote - CORRECT ANSWER - small, simple, single-cell organisms.bacteria are the
most prevalent kind.
Eukaryotes - CORRECT ANSWER - larger, and most often they are multi cellular
organisms, including plants, animals and fungi.
Cell Membrane - CORRECT ANSWER - provides a barrier between the interior and
exterior of the cell and it regulates the flow of substances in and out of the cell.
Cytoplasm - CORRECT ANSWER - the space in which the chemical reactions that enable
life take place. it is the fluid that occupies the space inside the cell.
Ribosomes - CORRECT ANSWER - are the molecular machines that use the instructions
contained in the DNA to build all the proteins needed by the cell.
Unlike eukaryotic cells, prokaryotic cells:
A) have no plasma membrane
B) have RNA but not DNA
C) have no nucleus
D) all of the above - CORRECT ANSWER - C) have no nucleus
Antibiotics are medications that are used to fight bacterial infections in humans and other
eukaryotes. Consider the following statements; which one is probably true about antibiotics?
A) Antibiotics are only poisonous to prokaryotic cells.
B) Antibiotics are only poisonous to eukaryotic cells.
, C) Antibiotics are poisonous to all cells. This is why you shouldn't take antibiotics very often. -
CORRECT ANSWER - A) Antibiotics are only poisonous to prokaryotic cells.
You find a cell and examine it under a microscope. You are able to see that the cell has a
nucleus. What can you conclude about this cell?
a) the cell is a eukaryote.
b) you cannot draw conclusions given just this information.
c) The cell is a prokaryote. - CORRECT ANSWER - a) the cell is a eukaryote.
Which of the following structures is found in BOTH prokaryotes and eukaryotes?
a) Nucelus
b) Mitochondria
c) DNA
d) Ribosome
e) Cytoplasm - CORRECT ANSWER - Ribosome, Cytoplasm and DNA.
Nucleus - CORRECT ANSWER - Control center of the cell and it stores DNA.
nucelar envelope - CORRECT ANSWER - shell enclosing the nucleus that separates it
from the cytoplasm, is studded with pores that allow information from inside the nucleus to enter
the cytoplasm.
Cytoplasm - CORRECT ANSWER - A jellylike fluid inside the cell in which the
organelles are suspended.
mitochondria - CORRECT ANSWER - Powerhouse of the cell. converts fuel (glucose)
into a form of energy that can be captured to do work(ATP)
Chloroplasts - CORRECT ANSWER - Capture energy from sunlight and use it to produce
food for the cell. only found in plant cells.
