Question 1

Osteoporosis is:

Accepted Answer

A) the loss of calcium from hard bone. 
B) the painful swelling of joints. 
C) the detachment of a ligament from a bone. 
D) the conversion of cartilage to bone in the developing embryo. 
A) the loss of calcium from hard bone. 
B) the painful swelling of joints. 
C) the detachment of a ligament from a bone. 
D) the conversion of cartilage to bone in the developing embryo.

Question 2

Skeletal muscle produces force as the ________ "walk" along the ________.

Accepted Answer

A) actin heads; myosin 
B) myosin heads; actin 
C) ATP molecules; microtubules 
D) creatine phosphate molecules; ATP molecules 
A) actin heads; myosin 
B) myosin heads; actin 
C) ATP molecules; microtubules 
D) creatine phosphate molecules; ATP molecules

Question 3

Blood vessels penetrate cartilage. True or False?

Accepted Answer

A) True 
 B)False

Question 4

Muscles used for fine motor control have:

Accepted Answer

A) motor units consisting of many muscle cells. 
B) motor units consisting of only a few muscle cells. 
C) many neuromuscular junctions. 
D) large amounts of ATP. 
A) motor units consisting of many muscle cells. 
B) motor units consisting of only a few muscle cells. 
C) many neuromuscular junctions. 
D) large amounts of ATP.

Question 5

Which of these animals is correctly matched with its type of skeleton?

Accepted Answer

A) earthworm  endoskeleton 
B) human  exoskeleton 
C) lobster  exoskeleton 
D) mayfly  hydroskeleton 
E) snail  endoskeleton 
A) earthworm  endoskeleton 
B) human  exoskeleton 
C) lobster  exoskeleton 
D) mayfly  hydroskeleton 
E) snail  endoskeleton

Question 6

Which molecule contains a binding site for the attachment of myosin heads?

Accepted Answer

A) actin 
B) sarcoplasmic reticulum 
C) ATP 
D) calcium 
A) actin 
B) sarcoplasmic reticulum 
C) ATP 
D) calcium

Question 7

Osteoporosis may occur when the activity of ________ exceeds the activity of ________.

Accepted Answer

A) osteoclasts; osteoblasts 
B) osteoblasts; osteoclasts 
C) osteoclasts; osteocytes 
D) osteocytes; osteoclasts 
A) osteoclasts; osteoblasts 
B) osteoblasts; osteoclasts 
C) osteoclasts; osteocytes 
D) osteocytes; osteoclasts

Question 8

The connective tissues that connect muscles to bones are called:

Accepted Answer

A) tendons. 
B) ligaments. 
C) thick filaments. 
D) thin filaments. 
A) tendons. 
B) ligaments. 
C) thick filaments. 
D) thin filaments.

Question 9

If you removed the calcium portion of a chicken bone by immersing it in vinegar for an extended time:

Accepted Answer

A) it would become rigid and inflexible. 
B) it would become extremely flexible. 
C) the bone would disintegrate. 
D) nothing would happen. 
A) it would become rigid and inflexible. 
B) it would become extremely flexible. 
C) the bone would disintegrate. 
D) nothing would happen.

Question 10

Motor units are all of the sarcomeres that make up a muscle fiber. True or False?

Accepted Answer

A) True 
 B)False

Exam 40: Action and Support: the Muscles and Skeleton

Osteoporosis is:

Skeletal muscle produces force as the ________ "walk" along the ________.

Blood vessels penetrate cartilage. True or False?

Muscles used for fine motor control have:

Which of these animals is correctly matched with its type of skeleton?

Which molecule contains a binding site for the attachment of myosin heads?

Osteoporosis may occur when the activity of ________ exceeds the activity of ________.

The connective tissues that connect muscles to bones are called:

If you removed the calcium portion of a chicken bone by immersing it in vinegar for an extended time:

Motor units are all of the sarcomeres that make up a muscle fiber. True or False?

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

Filters

Skeletal muscle produces force as the "walk" along the .

Osteoporosis may occur when the activity of exceeds the activity of .