Mass Transport (Chapter 7) Flashcards
What is mass transport?
The movement of substances within an organism or between organisms.
True or False: Mass transport only occurs in animals.
False
What is the main transport system in mammals?
The circulatory system.
Fill in the blank: In humans, oxygen is primarily transported by _____ in the blood.
hemoglobin
What are the two main types of circulatory systems?
Open and closed circulatory systems.
Multiple choice: Which of the following is a feature of a closed circulatory system? A) Blood is not contained in vessels B) Blood flows in a loop C) Blood is pumped by a heart
C) Blood is pumped by a heart
What is the role of the heart in mass transport?
To pump blood throughout the body.
True or False: The left side of the heart pumps deoxygenated blood.
False
What are the main components of blood?
Red blood cells, white blood cells, plasma, and platelets.
Fill in the blank: The _____ circuit carries blood to and from the lungs.
pulmonary
What is the function of capillaries?
To facilitate the exchange of substances between blood and tissues.
Multiple choice: Which type of blood vessel carries blood away from the heart? A) Veins B) Arteries C) Capillaries
B) Arteries
What is the significance of the double circulatory system in mammals?
It allows for efficient oxygenation and nutrient delivery.
True or False: Veins have thicker walls than arteries.
False
What is the role of plasma in the blood?
To transport nutrients, hormones, and waste products.
Fill in the blank: The _____ is the largest artery in the body.
aorta
What is the function of red blood cells?
To transport oxygen from the lungs to the body tissues.
Multiple choice: Which component of blood is responsible for clotting? A) Red blood cells B) White blood cells C) Platelets
C) Platelets
What is the function of white blood cells?
To defend the body against infection.
True or False: The heart has four chambers.
True