Animal transport end of unit quiz

Which of the following is not a reason to develop a transport system?

• Large surface area to volume ratio

• Small surface area to volume ratio

• The organism is large

• The organism has a high metabolic rate

If a cube measures 2cm x 2cm x 2cm, what is its SA:VOL?

• 6:1

• 3:1

• 2:1

• 1.5:1

If the surface area to volume ratio of an organism decreases, why does this influence their need for a transport system and/or exchange surface?

• The diffusion distance becomes smaller

• Diffusion is not adequate to meet their needs

• Oxygen supply can meet demand

• Wastes can be removed efficiently

Why would a large mammal require a circulatory system whilst an amoeba (single cell) would not?

• Mammals are mpre metabolically active

• Mammals are larger

• Mammals have a smaller SA:VOL

• Mammals have a larger SA:VOL

Which of the following statements is true?

• In an open circulatory system blood is contained in vessels

• In an open circulatory system blood is not in vessels

• In closed circulatory system blood circulates freely through the body cavity

Which of the following is NOT a reason a locust can survive with an open circulatory system?

• The blood doesn't have to travel far as they are small

• They don't rely on blood to transport oxygen

• Their SA:VOL is large so they can rely on diffusion alone

• They have a separate tracheole system to deliver air into respiratory organs

Fish have a closed circulatory system. Which of the following statements is incorrect?

• They are larger so cannot rely of diffusion alone

• Their blood flows at lower pressure and more slowly but this is sufficient to meet their needs

• Keeping the blood inside vessels means it is kept at a higher pressure

• They have a heart which pumps blood to maintain pressure

Humans have a double circulatory system. Which of the following are correct?

• The circuit that supplies the lungs is called the pulmonary circuit

• The circuit that supplies the lungs is called the systemic circuit

• The circuit that supplies the body is called the pulmonary circuit

• The circuit that supplies the body is called the systemic circuit

Which of these is not an advantage of a double circulatory system?

• Blood pressure is reduced so cells aren't damaged

• Blood pressure is increased by the heart after the pulmonary circuit

• Blood flows more quickly to body tissues

• Some blood is oxygenated at the same other oxygenated blood is delivered to cells

Which number is the right ventricle?

• 1

• 2

• 3

• 8