Deck 2: The Plant Cell

Question 1

Of these three items - concentration gradient,energy,membrane proteins - which two are needed for active transport to take place?

A)only a concentration gradient
B)all three are needed for active transport to take place
C)a concentration gradient and energy
D)a concentration gradient and membrane proteins
E)energy and membrane proteins

Answer 1

E

Question 2

If the proptoplast of plant cell A is hypertonic to the protoplast of adjacent plant cell B.Which way will water flow?

A)From A to B
B)From B to A
C)Equally from B to A and A to B
D)There will be no flow of water whatsoever
E)None of the above are correct.

Answer 2

B

Question 3

Which of the following statements is correct?

A)The plasma membrane is selectively permeable (differentially permeable).
B)The movement of water across the membrane is called facilitated diffusion.
C)Osmosis is a form of dialysis.
D)Diffusion and dialysis are usually the same process.
E)None of the above are correct.

Answer 3

A

Question 4

When a plant cell is placed in a hypotonic solution,the cell becomes ________.

A)hypertonic
B)plasmolyzed
C)turgid
D)osmotic
E)flaccid

Question 5

The free movement of water across a membrane is called ________.

A)active transport
B)simple diffusion
C)plasmolysis
D)osmosis
E)dialysis

Question 6

A plant plasma membrane is made up of ________ and ________.

A)cellulose;lignin
B)phospholipids;carbohydrates
C)phospholipids;proteins
D)cellulose;cholesterol
E)phospholipids;cholesterol

Question 7

Movement of materials from one plant cell to another is accomplished through which of the following?

A)the cytosol
B)the middle lamella
C)microtubules
D)plasmodesmata
E)the cytoskeleton

Question 8

The biological term,"cell" came about through the study of ________ cells.

A)tomato
B)wood
C)bone
D)cork
E)blood

Question 9

________ is(are)necessary for diffusion to take place.

A)A cell membrane
B)Membrane proteins
C)Energy
D)A concentration gradient
E)More than one of the above are required.

Question 10

Which of the following is not a statement of the Cell Theory?

A)All cells arise from preexisting cells.
B)All cells contain the hereditary material,DNA.
C)All organisms are made up of cells.
D)The cell is the basic unit of life.
E)All of the above are correct statements about the Cell Theory.

Question 11

Which of the following is found only in a plant cell?

A)Nucleus
B)Mitochondria
C)Endoplasmic reticulum
D)Chloroplasts
E)Ribosomes

Question 12

Microtubules and microfilaments comprise the structure of which of the following?

A)cell wall
B)plasmodesmata
C)plasma membrane
D)middle lamella
E)cytoskeleton

Question 13

Which of the following statements about lignin is not correct?

A)Lignin is indigestible by all organisms.
B)In trees,lignin is more abundant in softwood species than hardwood species.
C)Lignin protects the plant from pathogens.
D)Lignin is found in secondary cell walls.
E)Lignin is not found in primary cell walls.

Question 14

Which of the following pigments is most abundant in chloroplasts?

A)carotene
B)xanthophyll
C)melanin
D)chlorophyll
E)tannins

Question 15

Who among the scientists listed below was not directly involved in the development of the Cell Theory?

A)Hooke
B)Schleiden
C)Schwann
D)Virchow
E)All of these men were involved in the development of the Cell Theory.

Question 16

The Cell Theory is categorized as which of the following?

A)an educated guess
B)a hypothesis that is in need of testing
C)a speculative idea
D)untested but quite probable
E)an explanation accepted as a major principle of biology

Question 17

In drought conditions when soils are dry for long periods of time,plants cells become ________.

A)hypertonic
B)plasmolyzed
C)turgid
D)osmotic
E)hydrated

Question 18

If you could travel from the inside of one plant cell into an adjacent plant cell,in what order would you find the following plant cell structures listed below?

A)cytoplasm,plasma membrane,cell wall,middle lamella
B)plasma membrane,cytoplasm,middle lamella,cell wall
C)cytoplasm,plasma membrane,middle lamella,cell wall
D)cytoplasm,middle lamella,plasma membrane,cell wall
E)None of the above are correct.

Question 19

The primary cell wall of a plant ________.

A)consists of cellulose and lignin
B)forms inside of the secondary cell wall
C)consists primarily of cellulose
D)gives wood its characteristic flexibility
E)is described by more than one of these characteristics

Question 20

Which of the following serves as the "cement" that glues plant cells together?

A)cytosol
B)lignin
C)cellulose
D)the cytoskeleton
E)pectin

Question 21

What features in common with bacteria led scientists to conclude that chloroplasts and mitochondria evolved from bacteria?

A)Their DNA is similar to the DNA of bacteria.
B)Their ribosomes are similar to those of bacteria.
C)Cell division in both is like bacterial cell division.
D)The chemical composition of their inner membranes is similar to those of bacteria.
E)Chloroplasts and mitochondria share all of these bacteria-like features.

Question 22

Phragmoplasts are most closely associated with which of the following?

A)prophase
B)metaphase
C)anaphase
D)telophase
E)cytokinesis

Question 23

Which of the following animals produces carotenoids?

A)pea aphids
B)flamingos
C)chickens
D)butterflies
E)None of the above are correct-carotenoids are only produced by plants.

Question 24

Which of the following is correct?

A)Chromosomes are always duplicated during prophase.
B)All cells must go through interphase after telophase.
C)Cytokinesis is the division of duplicated chromosomes.
D)Mitosis is the same as cell division.
E)The Cell Cycle typically includes interphase,mitosis,and cytokinesis.

Question 25

The mitochondrial equivalent to grana is(are)________.

A)the matrix
B)cristae
C)stroma
D)plasma membranes
E)ribosomes

Question 26

Carotenoids are found in which of the following?

A)leucoplasts
B)amyloplasts
C)chloroplasts
D)chromoplasts
E)More than one of the above are correct.

Question 27

Which of the following statements is correct?

A)Chloroplasts,leucoplasts,and chromoplasts are collectively called plastids.
B)Amyloplasts are filled with plant oils.
C)Mitochondria provides a location for photosynthesis to take place.
D)Stroma holds adjacent plant cells together.
E)Neither chloroplasts nor mitochondria are viewed as endosymbionts.

Question 28

Which of the following is not correct?

A)During cellular respiration,glucose is chemically broken down to carbon dioxide,water,and ATP.
B)The inner membrane of mitochondria has numerous infoldings called cristae.
C)The matrix of mitochondria contains enzymes used in cellular respiration.
D)In some cells,the central vacuole takes up 90 percent of the cell volume.
E)Microbodies include peroxisomes,glyoxysomes,and ribosomes.

Question 29

Ribosomes are the sites of the synthesis of ________.

A)proteins
B)lipids
C)carbohydrates
D)nucleic acids
E)fats and oils

Question 30

Which phase of mitosis appears to be the most opposite of prophase?

A)anaphase
B)metaphase
C)telophase
D)cytokinesis
E)None of the above are correct.

Question 31

In which phase of mitosis do chromatids separate?

A)metaphase
B)prophase
C)anaphase
D)telophase
E)interphase

Question 32

Most specifically,ribosomes are produced in the ________.

A)chloroplast
B)nucleus
C)nucleolus
D)central vacuole
E)rough endoplasmic reticulum

Question 33

Plant pigments are specifically located within which of the following?

A)thylakoid membranes.
B)stroma
C)plasma membranes
D)nuclei
E)golgi apparatus

Question 34

Bacterial endosymbionts of sap-sucking insects provide needed ________ to their hosts.

A)DNA
B)sugars
C)amino acids
D)fats
E)oils

Question 35

Regulating metabolism and controlling cellular reproduction by destruction of proteins is accomplished by which of the following?

A)peroxisomes
B)proteasomes
C)glyoxysomes
D)chromosomes
E)tannosomes

Question 36

Which of the following terms is most closely associated with grana?

A)leucoplasts
B)stroma
C)thylakoids
D)vacuoles
E)plastids

Question 37

Which of the following is not found within the nucleus?

A)chromatin
B)nucleolus
C)DNA
D)ribosomes
E)RNA

Question 38

The storage,modification,and packaging of proteins is accomplished by the ________.

A)endoplasmic reticulum
B)mitochondria
C)proteasomes
D)Golgi apparatus
E)central vacuole

Question 39

The plastic ends of shoelaces that help prevent the shoelace from unraveling is called an aglet.What is the equivalent structure to an aglet on a chromosome?

A)centromere
B)chromatid
C)chromatin
D)nucleotide
E)telomere

Question 40

Anthocyanin is found in which of the following organelles?

A)central vacuole
B)chromoplast
C)chloroplast
D)leucoplast
E)endoplasmic reticulum

Question 41

The cells of a wilted plant have lost so much water that they become plasmolyzed.

Question 42

If vincristine-a drug that disrupts microtubules-is applied to dividing cells,chromosomes will not form.

Question 43

The quantity of water entering a cell in an isotonic solution is equal to the amount of water exiting.

Question 44

Proteins in the plasma membrane can reside on the outer or inner surface of the plasma membrane or extend completely through the plasma membrane.

Question 45

Cytokinesis-the division of the cytoplasm-separates the two identical daughter nuclei and their associated cytoplasm-into two cells.

Question 46

Most plant cells spend the majority of the time in prophase.

Question 47

The fluid mosaic model is the currently accepted explanation of membrane structure.

Question 48

The cell is the basic unit of life.

Question 49

The Endosymbiont Theory postulates that some membrane-bound organelles of eukaryotic cells,such as chloroplasts and mitochondria,were once free-living bacteria.

Question 50

Cell division enables plants to grow,repair wounds,and regenerate lost cells.Cell division can even lead to the production of new,genetically identical individuals,or clones.

Question 51

Tannosomes are newly discovered organelles containing tannins,common to woody plants such as oak trees.

Question 52

Spindle fibers-composed of microtubules-stretch from the poles to the kinetochore of each chromatid.

Question 53

The phragmoplast eventually becomes the ________.

A)nucleus
B)cell wall
C)plasma membrane
D)middle lamella
E)None of the above are correct.

Question 54

According to the Cell Theory,DNA is the genetic material in all cells.

Question 55

Active transport of substances into a cell always requires the expenditure of energy by the cell,typically in the form of ATP.

Question 56

If a plant cell is placed in a hypertonic solution,so much water enters the protoplast that the cell becomes turgid.