BIO270 Chapter 3 Circulatory System

Which of the following is NOT the functions of circulatory system?

• Transporting oxygen from the lungs to the cells

• Transporting carbon dioxide from the cells to the lungs

• Collect heat around the body

• Circulating hormones around the body from the glands where they are made to their target organs

Why diffusion alone is sufficient to allow adequate exchange of materials (e.g water and nutrients) in simple animals such as jelly fish?

• Have a body wall only two cell thick that encloses a gastrovascular cavity

• Have a body wall only one cell thick that encloses a gastrovascular cavity

• Have thick body wall and need specialized internal transport system

• Have thick body wall and do not need a specialized internal transport system

Three basic components in circulatory systems are:

• A circulatory fluid

• A set of tubes

• A muscular pump

• A malphigian tubule

Which of the following describes open circulatory system?

• The blood bathes the organ directly

• Less energy used

• Also function as hydroskeleton in some in some invertebrates

• Have one or more hearts that pump blood into large vessels that coursing through organs

Chemical exchange between the hemolymph and cells occurs in the______ and _______.

Which of the following describes closed circulatory system?

• Blood is confined to vessels

• The blood is distinct from the interstitial fluid

• Require less enery

• Materials are exchanged by diffusion between the blood and the interstitial fluid bathing the cells

What are the similarities between the arteries, veins and capillaries?

• Built of similar tissues

• Similar functions

• Have three similar layers

• Transport similar types of blood

The function of arteries are to___________.

Which of the TWO characteristics of the capillaries that enhance chemical and gases exchange between the blood and interstitial fluid?

• Have valve

• Have elastic tissues

• Have thin walls

• Consist only endothelium and its basement membrane

What is the function of the valve in the blood vessels?

• Allow rapid gaseous and chemical exchange between blood and cell by diffusion

• Transport blood from heart to tissues

• Prevent backflow of blood

• Transport blood from tissue to heart