Question 1

Because plants evolved from bacterial ancestors,the primary plant cell wall and the bacterial cell wall are both composed of peptidoglycan.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is not true concerning the cell theory?

Accepted Answer

A)  Virchow asserted that all cells come from preexisting cells.
B)  Schleiden determined that all plants are made of cells.
C)  Schwann researched animal tissues and discovered that they were all made of cells.
D)  Hooke observed the cells of cork.
E)  Leeuwenhoek first used the term "cells."F) All of the above
G) B) and E)

Question 3

Centrioles

Accepted Answer

A)  consist of a 9 + 2 pattern.
B)  are composed of microtubule triplets.
C)  carry on cellular respiration.
D)  are found in plant cells.
E)  are composed of actin.F) A) and E)
G) A) and D)

Question 4

Tay-Sachs is a serious childhood metabolic disorder where ____ fail to digest certain lipids.

Accepted Answer

A)  lysosomes
B)  nucleoli
C)  mitochondria
D)  Golgi apparati
E)  centriolesF) B) and D)
G) A) and C)

Question 5

In a person with a mitochondrial disease in which the mitochondria do not produce enough energy for the cell,which organs would most likely be affected?

Accepted Answer

A)  muscles
B)  liver
C)  skin
D)  stomach
E)  ovaries/testesF) B) and C)
G) C) and D)

Question 6

The body of a slime mold that flows over a rotten log appears to lack any partitioning into distinct cells; however it does become cellular when it changes form and produces spores.The surfaces of parasitic flatworms and some insect tissues are "syncytial" layers of living material that developed from a single cell but now contains many nuclei but lack partitioning by cell membranes.These tissues actively consume food and produce wastes.Considering that the cell theory states that "all living things are composed of cells," then

Accepted Answer

A)  these tissues are not living because they violate the cell theory.
B)  this proves some vital force is involved beyond normal cell structures in order to give life to living organisms.
C)  these tissues are obviously a bridge between nonliving and primitive living cells.
D)  the general concept of life-is-cellular still holds since sometime in their life these organisms still utilize cells,but this shows cell membranes can be abandoned.
E)  this demonstrates that cell membranes are a necessity to be classified as a living cell.F) D) and E)
G) B) and E)

Question 7

An agent would make a good antibiotic if it affected a structure or process only found in bacterial cells and not in our (eukaryotic) cells.Which of the following actions would theoretically make a good antibiotic?

Accepted Answer

A)  prevents repair of the peptidoglycan cell wall
B)  damages the nuclear membrane
C)  damages DNA
D)  prevents ribosomes from producing proteins
E)  stops cellular respirationF) A) and E)
G) C) and E)

Question 8

Considering that minute differences in organelle structure are enough to provide selective toxicity,which of the following cell organelles would be a good target for an antibiotic so it doesn't attack your cells?

Accepted Answer

A)  plasma membrane
B)  DNA
C)  ribosomes
D)  cytoplasm
E)  endoplasmic reticulumF) A) and B)
G) A) and C)

Question 9

The nucleolus

Accepted Answer

A)  contains RNA and is found in the nucleus.
B)  contains DNA and is found in the nucleus.
C)  contains RNA and is found in the cytoplasm.
D)  contains DNA and is found in the cytoplasm.
E)  contains ribosome subunits and is found in the cytoplasm.F) B) and E)
G) A) and B)

Question 10

Tissues that produce large amounts of secretions,such as the gastric glands of the stomach,contain cells with large numbers of

Accepted Answer

A)  lysosomes.
B)  nucleoli.
C)  centrioles.
D)  mitochondria.
E)  Golgi apparati.F) B) and E)
G) All of the above

Question 11

Both plant and animal cells have mitochondria because they both

Accepted Answer

A)  carry on photosynthesis.
B)  have a large central vacuole.
C)  have endoplasmic reticulum.
D)  need ATP for energy.
E)  have lysosomal hydrolytic enzymes.F) B) and E)
G) B) and D)

Question 12

Which organelle will give off oxygen and use up carbon dioxide in plants?

Accepted Answer

A)  Golgi apparatus
B)  rough endoplasmic reticulum
C)  lysosome
D)  mitochondrium
E)  chloroplastF) D) and E)
G) None of the above

Question 13

Which cellular structure is responsible for packaging materials with the cell?

Accepted Answer

A)  mitochondria
B)  chloroplasts
C)  Golgi apparatus
D)  ribosomes
E)  lysosomesF) C) and D)
G) B) and E)

Question 14

Each time water in a cell freezes slowly,long sharp crystals spear through the membrane structures of the cell.The most reasonable explanation for the bad taste of meat that has "freezer burn" from repeated freezing is the destruction of

Accepted Answer

A)  the nuclear membrane,causing mixing of nucleoplasm and cytoplasm.
B)  ribosomes,causing them to break into subunits.
C)  The breakage of the lysosomes would result in the release of digestive enzymes which would self-digest and,therefore,alter the taste of the meat.None of the other organelles would destroy the cells of alter the taste.
D)  rough endoplasmic reticulum causing the release of ribosomes.
E)  the Golgi apparatus and vesicles.F) A) and E)
G) A) and B)

Question 15

During photosynthesis,solar energy is converted to chemical energy by the chloroplasts.The process is represented by

Accepted Answer

A)  carbohydrate + oxygen  →\rightarrow→  carbon dioxide + water + energy
B)  carbohydrate + carbon dioxide  →\rightarrow→  oxygen + water + energy
C)  solar energy + oxygen + water →\rightarrow→ carbohydrate + oxygen
D)  solar energy + carbon dioxide + water →\rightarrow→ carbohydrate + oxygen
E)  solar energy  →\rightarrow→ carbohydrate + oxygen F) B) and D)
G) B) and C)

Question 16

If cells were moved to a low-gravity environment,such as in space exploration,a change would most likely be expected in the

Accepted Answer

A)  nucleus and the genetic process.
B)  chloroplast and energy capture.
C)  cytoskeleton.
D)  vacuoles and lysosomes.
E)  mitochondrion and energy release.F) B) and D)
G) B) and C)

Question 17

When viewed through a microscope,one characteristic of living cells is that their internal structures move.What organelles are most directly responsible for this motion we see?

Accepted Answer

A)  cell membrane and nucleus
B)  ribosomes and endoplasmic reticulum
C)  centrioles and cell wall
D)  mitochondria and cytoskeleton
E)  chloroplasts and lysosomesF) C) and E)
G) B) and E)

Exam 3: Cell Structure and Function

When viewed through a microscope,one characteristic of living cells is that their internal structures move.What organelles are most directly responsible for this motion we see?

Correct Answer
verified

The nucleolus

Correct Answer
verified

Both plant and animal cells have mitochondria because they both

Correct Answer
verified

Each time water in a cell freezes slowly,long sharp crystals spear through the membrane structures of the cell.The most reasonable explanation for the bad taste of meat that has "freezer burn" from repeated freezing is the destruction of

Correct Answer
verified

Tissues that produce large amounts of secretions,such as the gastric glands of the stomach,contain cells with large numbers of

Correct Answer
verified

Centrioles

Correct Answer
verified

Because plants evolved from bacterial ancestors,the primary plant cell wall and the bacterial cell wall are both composed of peptidoglycan.

Correct Answer
verified

Tay-Sachs is a serious childhood metabolic disorder where ____ fail to digest certain lipids.

Correct Answer
verified

Which cellular structure is responsible for packaging materials with the cell?

Correct Answer
verified

Considering that minute differences in organelle structure are enough to provide selective toxicity,which of the following cell organelles would be a good target for an antibiotic so it doesn't attack your cells?

Correct Answer
verified

Which of the following is not true concerning the cell theory?

Correct Answer
verified

In a person with a mitochondrial disease in which the mitochondria do not produce enough energy for the cell,which organs would most likely be affected?

Correct Answer
verified

Correct Answer
verified

Which organelle will give off oxygen and use up carbon dioxide in plants?

Correct Answer
verified

An agent would make a good antibiotic if it affected a structure or process only found in bacterial cells and not in our (eukaryotic) cells.Which of the following actions would theoretically make a good antibiotic?

Correct Answer
verified

During photosynthesis,solar energy is converted to chemical energy by the chloroplasts.The process is represented by

Correct Answer
verified

If cells were moved to a low-gravity environment,such as in space exploration,a change would most likely be expected in the

Correct Answer
verified

Exam 3: Cell Structure and Function

When viewed through a microscope,one characteristic of living cells is that their internal structures move.What organelles are most directly responsible for this motion we see?

Correct AnswerverifiedShow Answer

The nucleolus

Correct AnswerverifiedShow Answer

Both plant and animal cells have mitochondria because they both

Correct AnswerverifiedShow Answer

Each time water in a cell freezes slowly,long sharp crystals spear through the membrane structures of the cell.The most reasonable explanation for the bad taste of meat that has "freezer burn" from repeated freezing is the destruction of

Correct AnswerverifiedShow Answer

Tissues that produce large amounts of secretions,such as the gastric glands of the stomach,contain cells with large numbers of

Correct AnswerverifiedShow Answer

Centrioles

Correct AnswerverifiedShow Answer

Because plants evolved from bacterial ancestors,the primary plant cell wall and the bacterial cell wall are both composed of peptidoglycan.

Correct AnswerverifiedShow Answer

Tay-Sachs is a serious childhood metabolic disorder where ____ fail to digest certain lipids.

Correct AnswerverifiedShow Answer

Which cellular structure is responsible for packaging materials with the cell?

Correct AnswerverifiedShow Answer

Considering that minute differences in organelle structure are enough to provide selective toxicity,which of the following cell organelles would be a good target for an antibiotic so it doesn't attack your cells?

Correct AnswerverifiedShow Answer

Which of the following is not true concerning the cell theory?

Correct AnswerverifiedShow Answer

In a person with a mitochondrial disease in which the mitochondria do not produce enough energy for the cell,which organs would most likely be affected?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which organelle will give off oxygen and use up carbon dioxide in plants?

Correct AnswerverifiedShow Answer

An agent would make a good antibiotic if it affected a structure or process only found in bacterial cells and not in our (eukaryotic) cells.Which of the following actions would theoretically make a good antibiotic?

Correct AnswerverifiedShow Answer

During photosynthesis,solar energy is converted to chemical energy by the chloroplasts.The process is represented by

Correct AnswerverifiedShow Answer

If cells were moved to a low-gravity environment,such as in space exploration,a change would most likely be expected in the

Correct AnswerverifiedShow Answer

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