Question 1

Which of the following lists of structures is in the correct order from inside to outside of the cell?

Accepted Answer

A) axoneme, basal body, transition zone 
B) basal body, transition zone, axoneme 
C) transition zone, basal body, axoneme 
D) axoneme, transition zone, basal body 
E) basal body, axoneme, transition zone 
A) axoneme, basal body, transition zone 
B) basal body, transition zone, axoneme 
C) transition zone, basal body, axoneme 
D) axoneme, transition zone, basal body 
E) basal body, axoneme, transition zone

Question 2

In the axoneme, sidearms

Accepted Answer

A) link adjacent doublets. 
B) are incomplete microtubules. 
C) are complete microtubules. 
D) slide microtubules past one another. 
E) project inward at each doublet. 
A) link adjacent doublets. 
B) are incomplete microtubules. 
C) are complete microtubules. 
D) slide microtubules past one another. 
E) project inward at each doublet.

Question 3

During cell crawling, the cell must attach to the substrate upon which it is crawling. One group of attachment proteins is the .

Accepted Answer

A) actins 
B) integrins 
C) actomyosins 
D) titins 
E) creatines 
A) actins 
B) integrins 
C) actomyosins 
D) titins 
E) creatines

Question 4

links the thick filaments to the Z line.

Accepted Answer

A) Tropomyosin 
B) Titin 
C) Nebulin 
D) Troponin 
E) Myosin 
A) Tropomyosin 
B) Titin 
C) Nebulin 
D) Troponin 
E) Myosin

Question 5

Which of the following is associated with retrograde movement?

Accepted Answer

A) tubulin 
B) actin 
C) dynein 
D) kinesin 
E) myosin 
A) tubulin 
B) actin 
C) dynein 
D) kinesin 
E) myosin

Question 6

Axonemal dynesin is characterized by

Accepted Answer

A) motion toward the "minus" end of the microtubule. 
B) motion toward the "plus" end of the microtubule. 
C) sliding in flagellar microtubules. 
D) activation of sliding along actin in sarcomere. 
E) motion along actin filaments. 
A) motion toward the "minus" end of the microtubule. 
B) motion toward the "plus" end of the microtubule. 
C) sliding in flagellar microtubules. 
D) activation of sliding along actin in sarcomere. 
E) motion along actin filaments.

Question 7

Which of the following characteristics is NOT associated with cardiac muscle?

Accepted Answer

A) pointed ends 
B) intercalated discs 
C) striations 
D) contracts spontaneously 
E) involuntary 
A) pointed ends 
B) intercalated discs 
C) striations 
D) contracts spontaneously 
E) involuntary

Question 8

Striated muscle has light and dark bands. The light bands are called , whereas the dark bands are called .

Accepted Answer

A) M lines; A bands 
B) A bands; I bands 
C) Z lines; M lines 
D) H zones; M zones 
E) I bands; A bands 
A) M lines; A bands 
B) A bands; I bands 
C) Z lines; M lines 
D) H zones; M zones 
E) I bands; A bands

Question 9

When migrating cells move toward a greater concentration of a diffusible chemical, the chemical is called a _ .

Accepted Answer

The answer of When migrating cells move toward a greater...

Question 10

Which of the following terms is incorrectly matched with the word from which it was derived?

Accepted Answer

A) A band- anisotropic 
B) I band- irregular 
C) Z line- zwischen 
D) H zone- hell 
E) M line- myomesin 
A) A band- anisotropic 
B) I band- irregular 
C) Z line- zwischen 
D) H zone- hell 
E) M line- myomesin

Question 11

is a directional movement in response to a graded chemical stimulus.

Accepted Answer

The answer of is a directional movement in response to...

Question 12

Cytoplasmic streaming depends on the protein .

Accepted Answer

The answer of Cytoplasmic streaming depends on the protein ....

Question 13

During the sliding process in microtubules, the stalks of the dynein attach to and detach from the in a cyclic manner.

Accepted Answer

A) central pair 
B) A tubule 
C) interdoublet nexin connections 
D) B tubule 
E) radial spoke 
A) central pair 
B) A tubule 
C) interdoublet nexin connections 
D) B tubule 
E) radial spoke

Question 14

All of the following are examples of nonmuscle motility and contractility EXCEPT

Accepted Answer

A) phagocytosis. 
B) actin polymerization of Listeria. 
C) pseudopodia formation. 
D) cytoplasmic streaming. 
E) microsome formation. 
A) phagocytosis. 
B) actin polymerization of Listeria. 
C) pseudopodia formation. 
D) cytoplasmic streaming. 
E) microsome formation.

Question 15

Muscle contraction occurs in a cyclic process. Which of the following sequences is in the correct order?

Accepted Answer

A) cross bridge formation, cocking of myosin, power stroke, cross bridge dissociation 
B) cross bridge formation, power stroke, cross bridge dissociation, power stroke, cocking of myosin 
C) power stroke, cross bridge formation, cross bridge dissociation, cocking of myosin 
D) cross bridge formation, cross bridge dissociation, cocking of myosin, power stroke 
E) cross bridge formation, power stroke, cross bridge dissociation, cocking of myosin 
A) cross bridge formation, cocking of myosin, power stroke, cross bridge dissociation 
B) cross bridge formation, power stroke, cross bridge dissociation, power stroke, cocking of myosin 
C) power stroke, cross bridge formation, cross bridge dissociation, cocking of myosin 
D) cross bridge formation, cross bridge dissociation, cocking of myosin, power stroke 
E) cross bridge formation, power stroke, cross bridge dissociation, cocking of myosin

Question 16

Which of the following major protein components of skeletal muscle is incorrectly matched with its function?

Accepted Answer

A) myomesin- myosin binding protein present at M line 
B) actin- major component of thin filaments 
C) troponin- binds along the length of the thin filaments and covers myosin binding sites 
D) titin- links thick filaments at Z line 
E) nebulin- links thin filaments at Z line 
A) myomesin- myosin binding protein present at M line 
B) actin- major component of thin filaments 
C) troponin- binds along the length of the thin filaments and covers myosin binding sites 
D) titin- links thick filaments at Z line 
E) nebulin- links thin filaments at Z line

Question 17

Primary cilia have a structure and are observed in structures.

Accepted Answer

A) 9 + 2; neural 
B) 9 + 2; sensory 
C) 9 + 0; neural 
D) 9 + 4; developmental 
E) 9 + 0; sensory 
A) 9 + 2; neural 
B) 9 + 2; sensory 
C) 9 + 0; neural 
D) 9 + 4; developmental 
E) 9 + 0; sensory

Question 18

The 9 + 2 pattern of the axoneme is nine _ of microtubules and two additional microtubules in the center called the .

Accepted Answer

A) basal bodies; inner two 
B) triplet groups; basal bodies 
C) central tubules; double pair 
D) circular structure; middle two 
E) outer doublets; central pair 
A) basal bodies; inner two 
B) triplet groups; basal bodies 
C) central tubules; double pair 
D) circular structure; middle two 
E) outer doublets; central pair

Question 19

Cilia and flagella are comprised of a _ connected to a _.

Accepted Answer

The answer of Cilia and flagella are comprised of a...

Question 20

The calcium pump or calcium ATPase

Accepted Answer

A) is responsible for removing calcium from the T tubule. 
B) increases bone density. 
C) increases the level of calcium in the axon terminal. 
D) removes calcium from the sarcoplasm. 
E) is a passive process. 
A) is responsible for removing calcium from the T tubule. 
B) increases bone density. 
C) increases the level of calcium in the axon terminal. 
D) removes calcium from the sarcoplasm. 
E) is a passive process.

Exam 16: Cellular Movement: Motility and Contractility

Which of the following lists of structures is in the correct order from inside to outside of the cell?

In the axoneme, sidearms

During cell crawling, the cell must attach to the substrate upon which it is crawling. One group of attachment proteins is the .

links the thick filaments to the Z line.

Which of the following is associated with retrograde movement?

Axonemal dynesin is characterized by

Which of the following characteristics is NOT associated with cardiac muscle?

Striated muscle has light and dark bands. The light bands are called , whereas the dark bands are called .

When migrating cells move toward a greater concentration of a diffusible chemical, the chemical is called a _ .

Which of the following terms is incorrectly matched with the word from which it was derived?

is a directional movement in response to a graded chemical stimulus.

Cytoplasmic streaming depends on the protein .

During the sliding process in microtubules, the stalks of the dynein attach to and detach from the in a cyclic manner.

All of the following are examples of nonmuscle motility and contractility EXCEPT

Muscle contraction occurs in a cyclic process. Which of the following sequences is in the correct order?

Which of the following major protein components of skeletal muscle is incorrectly matched with its function?

Primary cilia have a structure and are observed in structures.

The 9 + 2 pattern of the axoneme is nine _ of microtubules and two additional microtubules in the center called the .

Cilia and flagella are comprised of a _ connected to a _.

The calcium pump or calcium ATPase

A Preview of the Cell

The Chemistry of the Cell

The Macromolecules of the Cell

Cells and Organelles

Bioenergetics: The Flow of Energy in the Cell

Enzymes: The Catalysts of Life

Membranes: Their Structure, Function, and Chemistry

Transport Across Membranes: Overcoming the Permeability Barrier

Chemotrophic Energy Metabolism: Glycolysis and Fermentation

Chemotrophic Energy Metabolism: Aerobic Respiration

Phototrophic Energy Metabolism: Photosynthesis

The Endomembrane System and Peroxisomes

Signal Transduction Mechanisms: I Electrical and Synaptic Signaling in Neurons

Signal Transduction Mechanisms: Ii Messengers and Receptors

Cytoskeletal Systems

Beyond the Cell: Cell Adhesion, Cell Junctions, and Extracellular Structures

The Structural Basis of Cellular Information: DNA, Chromosomes, and the Nucleus

The Cell Cycle, Dna Replication, and Mitosis

Sexual Reproduction, Meiosis, and Genetic Recombination

Gene Expression: I the Genetic Code and Transcription

Gene Expression: II Protein Synthesis and Sorting

The Regulation of Gene Expression

Cancer Cells

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