Question 1

Which of the following statements about the vertebrae is NOT true?

Accepted Answer

A) Twenty-six vertebrae make up the vertebral column. 
B) The vertebrae form a dorsal backbone. 
C) The vertebrae help form 4 curvatures of the spine. 
D) The vertebrae are separated by intervertebral disks. 
E) The vertebrae protect the spinal cord. 
A) Twenty-six vertebrae make up the vertebral column. 
B) The vertebrae form a dorsal backbone. 
C) The vertebrae help form 4 curvatures of the spine. 
D) The vertebrae are separated by intervertebral disks. 
E) The vertebrae protect the spinal cord.

Question 2

Which of the following organisms lack a hydrostatic skeleton?

Accepted Answer

A) cicada 
B) planarian 
C) hydra 
D) earthworms 
E) roundworms 
A) cicada 
B) planarian 
C) hydra 
D) earthworms 
E) roundworms

Question 3

Which of the following hormones stimulate osteoblasts to form bone?

Accepted Answer

A) erythropoietin 
B) parathyroid hormone 
C) growth hormone 
D) sex hormones 
E) Both growth and sex hormones 
A) erythropoietin 
B) parathyroid hormone 
C) growth hormone 
D) sex hormones 
E) Both growth and sex hormones

Question 4

Actin and myosin filaments are both present in the dense region called the

Accepted Answer

A) A band. 
B) Z line. 
C) H zone. 
D) I band. 
E) M band. 
A) A band. 
B) Z line. 
C) H zone. 
D) I band. 
E) M band.

Question 5

Which of the following statements about the development of bone in humans is NOT true?

Accepted Answer

A) Bone breakdown and replacement occur throughout life. 
B) A primary ossification center forms in the middle of a long bone. 
C) A secondary ossification center forms at the end of a long bone. 
D) Bones may form within a cartilage model or within a membrane matrix. 
E) A cartilaginous disk remains between the primary and secondary ossification centers until old age. 
A) Bone breakdown and replacement occur throughout life. 
B) A primary ossification center forms in the middle of a long bone. 
C) A secondary ossification center forms at the end of a long bone. 
D) Bones may form within a cartilage model or within a membrane matrix. 
E) A cartilaginous disk remains between the primary and secondary ossification centers until old age.

Question 6

What molecule is used to anaerobically regenerate ATP?

Accepted Answer

A) ADP 
B) glucose 
C) lactate 
D) creatine phosphate 
E) tropomyosin 
A) ADP 
B) glucose 
C) lactate 
D) creatine phosphate 
E) tropomyosin

Question 7

If calcium is not present in the muscle cell what complications can occur in regards to muscle contraction?

Accepted Answer

A) Tropomyosin will not be pulled away from the myosin binding sites. 
B) Myosin heads will not bind to the actin filament. 
C) The power stroke will not be produced preventing the actin filament from moving. 
D) All of these are complications resulting from a lack of calcium. 
A) Tropomyosin will not be pulled away from the myosin binding sites. 
B) Myosin heads will not bind to the actin filament. 
C) The power stroke will not be produced preventing the actin filament from moving. 
D) All of these are complications resulting from a lack of calcium.

Question 8

Which of the following is NOT an advantage of having an endoskeleton?

Accepted Answer

A) The skeleton grows with the animal. 
B) Endoskeletons can support the weight of a large animal. 
C) Endoskeleton provides protection to the internal organs. 
D) Endoskeletons allow for more flexibility. 
E) Endoskeletons provide protection for the outermost tissue layer of the organism. 
A) The skeleton grows with the animal. 
B) Endoskeletons can support the weight of a large animal. 
C) Endoskeleton provides protection to the internal organs. 
D) Endoskeletons allow for more flexibility. 
E) Endoskeletons provide protection for the outermost tissue layer of the organism.

Question 9

________ are bone-absorbing cells and ________ are bone-forming cells.

Accepted Answer

A) Menisci; osteoclasts 
B) Chondrocytes; lymphocytes 
C) Osteoclasts; osteoblasts 
D) Eosinophils; red blood cells 
E) Osteocytes; osteons 
A) Menisci; osteoclasts 
B) Chondrocytes; lymphocytes 
C) Osteoclasts; osteoblasts 
D) Eosinophils; red blood cells 
E) Osteocytes; osteons

Question 10

Which of the following associations of term and description is NOT correct?

Accepted Answer

A) actin - thin filament 
B) myosin - thick filament 
C) sarcomere - the entire muscle cell or muscle fiber 
D) sarcolemma - extensive plasma membrane 
A) actin - thin filament 
B) myosin - thick filament 
C) sarcomere - the entire muscle cell or muscle fiber 
D) sarcolemma - extensive plasma membrane

Question 11

The system of flexing and extending muscles makes movement of appendages easy to understand.But how are some actions possible (sticking out your tongue,beating of your heart)when these structures have no bone structure with opposing flexors and extensors in them?

Accepted Answer

A) One set of muscle cells must therefore be able to both contract and expand. 
B) These structures must be empty chambers,and fluids forced into them expand them. 
C) Muscle cells running diagonally or crosswise amidst the longitudinal muscles must contract and force the long relaxed muscle cells to elongate. 
D) This cannot be explained at present. 
A) One set of muscle cells must therefore be able to both contract and expand. 
B) These structures must be empty chambers,and fluids forced into them expand them. 
C) Muscle cells running diagonally or crosswise amidst the longitudinal muscles must contract and force the long relaxed muscle cells to elongate. 
D) This cannot be explained at present.

Question 12

What are the correct steps of muscle contraction starting with ACh? 
a.ACh diffuses across the synaptic cleft.
B.The sarcolemma generates an impulse that moves down the T tubules into
The sarcoplasmic reticulum.
C.ACh binds to receptors in the sarcolemma.
D.The sarcomere contraction produces a myofibril contraction.
E.Calcium is released causing the sarcomere contraction.

Accepted Answer

A) a - c - b - e - d 
B) a - b - c -e - d 
C) d - a - b - e - c 
D) c - e - d - a - b 
A) a - c - b - e - d 
B) a - b - c -e - d 
C) d - a - b - e - c 
D) c - e - d - a - b

Question 13

Identify the labeled structures on the human skeleton in the picture.   A: ________
B: ________
C: ________
D: ________
E: ________
F: ________
G: ________
H: ________
I: ________
J: ________
K: ________
L: ________
M: ________
N: ________
O: ________
P: ________
Q: ________
R: ________
S: ________

Accepted Answer

A: frontal bone B: zygomatic bone C: max

Question 14

Which of the following functions is NOT a function of the human skeletal system?

Accepted Answer

A) protects internal organs 
B) acts as a storage site for calcium and phosphorus ions 
C) acts as the site of blood cell production in adults 
D) acts as a structure against which muscles can contract 
E) provides the ATP for muscles to use in contraction 
A) protects internal organs 
B) acts as a storage site for calcium and phosphorus ions 
C) acts as the site of blood cell production in adults 
D) acts as a structure against which muscles can contract 
E) provides the ATP for muscles to use in contraction

Question 15

Which of the following statements about the nature of bone is true?

Accepted Answer

A) Bone is active,growing tissue with an extensive blood supply. 
B) Bone is similar to cartilage,nearly inert,and with little blood supply. 
C) Bone is active and living when formed by osteoblast but dies after it hardens. 
D) Bone is nonliving calcium deposits and removing bone is a bloodless operation. 
E) The outer compact bone is nonliving calcium,but the bone marrow is active living tissue. 
A) Bone is active,growing tissue with an extensive blood supply. 
B) Bone is similar to cartilage,nearly inert,and with little blood supply. 
C) Bone is active and living when formed by osteoblast but dies after it hardens. 
D) Bone is nonliving calcium deposits and removing bone is a bloodless operation. 
E) The outer compact bone is nonliving calcium,but the bone marrow is active living tissue.

Question 16

Which of the following statements about the muscular system is NOT true?

Accepted Answer

A) The human muscular system contains three kinds of muscle tissue. 
B) Muscles work in antagonistic pairs across a joint. 
C) Muscles are attached to bones by tendons. 
D) Muscles can move a bone by pushing or pulling it as they contract. 
E) Tetanus and tone are features of normal muscle tissue. 
A) The human muscular system contains three kinds of muscle tissue. 
B) Muscles work in antagonistic pairs across a joint. 
C) Muscles are attached to bones by tendons. 
D) Muscles can move a bone by pushing or pulling it as they contract. 
E) Tetanus and tone are features of normal muscle tissue.

Question 17

Damage to the matrix of a bone can result in which of the following complications?

Accepted Answer

A) There will be a decrease in available calcium phosphate which could result in decreased concentrations of calcium and phosphate ions in the blood. 
B) There will be a decrease in potassium resulting in a decrease in bone strength. 
C) There will be a decrease in the production of white blood cells. 
D) The attachment point for muscles will not be as strong resulting in more injuries. 
E) None of these are complications associated with damage to the matrix of the bone. 
A) There will be a decrease in available calcium phosphate which could result in decreased concentrations of calcium and phosphate ions in the blood. 
B) There will be a decrease in potassium resulting in a decrease in bone strength. 
C) There will be a decrease in the production of white blood cells. 
D) The attachment point for muscles will not be as strong resulting in more injuries. 
E) None of these are complications associated with damage to the matrix of the bone.

Question 18

________ provides the energy for muscle contraction.

Accepted Answer

A) ATP 
B) ADP 
C) Creatine phosphate 
D) Lactate 
E) Glycogen 
A) ATP 
B) ADP 
C) Creatine phosphate 
D) Lactate 
E) Glycogen

Question 19

Identify the labeled muscles in the picture.

Accepted Answer

A: frontalis B: orbicularis oculi C: zyg

Question 20

Which of the following groups of organisms will all possess hydrostatic skeletons?

Accepted Answer

A) planaria,hydras and earthworms 
B) planaria,hyrdas,crayfish 
C) earthworms,crayfish and sea stars 
D) butterflies,cats and clams 
E) bluegill,lobster and planaria 
A) planaria,hydras and earthworms 
B) planaria,hyrdas,crayfish 
C) earthworms,crayfish and sea stars 
D) butterflies,cats and clams 
E) bluegill,lobster and planaria

Exam 39: Locomotion and Support Systems

Which of the following statements about the vertebrae is NOT true?

Which of the following organisms lack a hydrostatic skeleton?

Which of the following hormones stimulate osteoblasts to form bone?

Actin and myosin filaments are both present in the dense region called the

Which of the following statements about the development of bone in humans is NOT true?

What molecule is used to anaerobically regenerate ATP?

If calcium is not present in the muscle cell what complications can occur in regards to muscle contraction?

Which of the following is NOT an advantage of having an endoskeleton?

________ are bone-absorbing cells and ________ are bone-forming cells.

Which of the following associations of term and description is NOT correct?

The system of flexing and extending muscles makes movement of appendages easy to understand.But how are some actions possible (sticking out your tongue,beating of your heart)when these structures have no bone structure with opposing flexors and extensors in them?

Identify the labeled structures on the human skeleton in the picture. A: ________ B: ________ C: ________ D: ________ E: ________ F: ________ G: ________ H: ________ I: ________ J: ________ K: ________ L: ________ M: ________ N: ________ O: ________ P: ________ Q: ________ R: ________ S: ________

Which of the following functions is NOT a function of the human skeletal system?

Which of the following statements about the nature of bone is true?

Which of the following statements about the muscular system is NOT true?

Damage to the matrix of a bone can result in which of the following complications?

________ provides the energy for muscle contraction.

Identify the labeled muscles in the picture.

Which of the following groups of organisms will all possess hydrostatic skeletons?

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

The Cell Cycle and Cellular Reproduction

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Speciation and Macroevolution

Origin and History of Life

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Invertebrate Evolution

Vertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Digestive Systems and Nutrition

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Sense Organs

Hormones and Endocrine Systems

Reproductive Systems

Animal Development and Aging

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

Filters

are bone-absorbing cells and are bone-forming cells.

Identify the labeled structures on the human skeleton in the picture. A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Q: R: S: