Gas Exchange and Circulation in Plants and Animals
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Questions and Answers

What is the function of the nasal cavity in the upper respiratory system?

  • To regulate blood pressure
  • To pump blood throughout the body
  • To facilitate gas exchange between the atmosphere and the blood
  • To filter, warm, and humidify the air (correct)

What is the term for the exchange of oxygen and carbon dioxide between the atmosphere and the blood of the lung capillaries?

  • Cellular respiration
  • External respiration (correct)
  • Internal respiration
  • Tracheal respiration

What is the term for the series of respiratory tubes that carry gases directly to the cells for gas exchange?

  • Alveoli
  • Diaphragm
  • Tracheal system (correct)
  • Bronchial tree

What is the primary function of the lungs in the human respiratory system?

<p>To facilitate gas exchange between the atmosphere and the blood (A)</p> Signup and view all the answers

What is the term for the exchange of oxygen and carbon dioxide between the blood and the body cells?

<p>Internal respiration (D)</p> Signup and view all the answers

What is the term for the series of respiratory tubes and small openings that connect the lungs to the outside environment?

<p>Bronchial tree (B)</p> Signup and view all the answers

What is the primary function of guard cells in plant leaves?

<p>To regulate gas exchange through stomata (C)</p> Signup and view all the answers

Which of the following animals uses its skin for gas exchange?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of gills in aquatic organisms?

<p>To increase the surface area for gas exchange (C)</p> Signup and view all the answers

What is the site of gas exchange in animals?

<p>Cell membrane (C)</p> Signup and view all the answers

What is the function of lenticels in woody stems and mature roots?

<p>To allow gas exchange between the plant and the environment (A)</p> Signup and view all the answers

What is the result if an earthworm's skin is dried up?

<p>It will suffocate (A)</p> Signup and view all the answers

What is the primary function of the circulatory system in multicellular organisms?

<p>To transport nutrients, oxygen, and hormones to cells (A)</p> Signup and view all the answers

Which of the following is a unique feature of plant gas exchange mechanisms?

<p>Diffusion of gases through the cell membrane (B)</p> Signup and view all the answers

What is the primary site of gas exchange in the mammalian respiratory system?

<p>Alveoli (C)</p> Signup and view all the answers

Which of the following is NOT a function of the respiratory system?

<p>Synthesis of ATP (C)</p> Signup and view all the answers

What is the term for the process of gas exchange between the environment and an organism's cells?

<p>Respiration (B)</p> Signup and view all the answers

Which of the following is a characteristic of the circulatory system in animals?

<p>Presence of a closed circulatory system (D)</p> Signup and view all the answers

Flashcards

Nasal Cavity Function

Filters, warms, and humidifies air entering the respiratory system.

External Respiration

Exchange of oxygen and carbon dioxide between the atmosphere and lung capillaries.

Tracheal System

Respiratory tubes that carry gases directly to cells for gas exchange.

Lungs Function

Facilitates gas exchange between the atmosphere and the blood.

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Internal Respiration

Exchange of oxygen and carbon dioxide between the blood and body cells.

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Bronchial Tree

Series of tubes and openings connecting lungs to the external environment.

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Guard Cells Function

Regulate gas exchange through stomata in plant leaves.

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Gills Purpose

Increase the surface area for gas exchange in aquatic organisms.

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Site of Gas Exchange

Cell membrane

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Lenticels Function

Allow gas exchange between the plant and the environment in woody stems and roots.

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Dried Earthworm Skin

It will suffocate.

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Circulatory System Function

To transport nutrients, oxygen, and hormones to cells.

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Plant Gas Exchange Feature

Diffusion of gases through the cell membrane.

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Primary Site of Gas Exchange in Mammals

Alveoli

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Gas Exchange Process

Respiration

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Animal Circulatory System Characteristic

Presence of a closed circulatory system

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Guard cells main function

To regulate gas exchange through stomata

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The way some animals breathe

Diffusion by the means of water and skin

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