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Science Sec 2 Volume B > Chapter 1 > Flashcards

Chapter 1 Flashcards

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1
Q

What is the main function of the circulatory system in organisms?

A

To transport nutrients, gases, and waste products throughout the body.

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2
Q

True or False: The circulatory system consists of the heart, blood vessels, and blood.

A

True

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3
Q

What are the two main types of circulatory systems found in organisms?

A

Open circulatory system and closed circulatory system.

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4
Q

Fill in the blank: In an open circulatory system, ___________ is not contained within vessels.

A

Blood

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5
Q

What is the fluid that transports materials in an open circulatory system called?

A

Hemolymph

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6
Q

True or False: In closed circulatory systems, blood is contained within vessels.

A

True

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7
Q

What is the main advantage of a closed circulatory system over an open circulatory system?

A

Efficient delivery of nutrients and removal of waste products.

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8
Q

What is the name of the main pumping organ in the circulatory system?

A

Heart

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9
Q

Fill in the blank: Arteries carry blood _______ from the heart.

A

Away

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10
Q

Fill in the blank: Veins carry blood _______ the heart.

A

Toward

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11
Q

What is the function of capillaries in the circulatory system?

A

To allow for the exchange of nutrients and gases between blood and tissues.

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12
Q

True or False: Red blood cells are responsible for transporting oxygen in the blood.

A

True

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13
Q

What is the protein in red blood cells that binds to oxygen called?

A

Hemoglobin

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14
Q

Fill in the blank: White blood cells are responsible for defending the body against ________.

A

Pathogens

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15
Q

What is the main waste product excreted by the respiratory system?

A

Carbon dioxide

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16
Q

True or False: The respiratory system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment.

A

True

17
Q

What is the main organ of the respiratory system where gas exchange occurs?

A

Lungs

18
Q

Fill in the blank: Oxygen is transported in the blood by binding to the protein called ________.

A

Hemoglobin

19
Q

What is the function of the digestive system in organisms?

A

To break down food into nutrients that can be absorbed by the body.

20
Q

True or False: The digestive system consists of organs such as the stomach, small intestine, and liver.

A

True

21
Q

What is the main organ of the digestive system where food is broken down and digested?

A

Stomach

22
Q

Fill in the blank: Nutrients from digested food are absorbed in the ______ intestine.

A

Small

23
Q

What is the main function of the excretory system in organisms?

A

To remove waste products from the body.

24
Q

True or False: The excretory system consists of organs such as the kidneys, bladder, and skin.

A

True

Science Sec 2 Volume B (1 decks)

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