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WorksheetsTransport System
Total questions: 15
Worksheet time: 30mins
Which shows the correct pathway of oxygenated blood entering and leaving the heart?
Pulmonary vein > left atrium > left ventricle > aorta
Pulmonary vein > left atrium > right ventricle > aorta
Vena cava > right atrium > right ventricle > pulmonary artery
Vena cava > right atrium > left ventricle > pulmonary artery
Which shows the correct pathway of deoxygenated blood entering and leaving the heart?
Vena cava > right atrium > right ventricle > pulmonary artery
Vena cava > right atrium > left ventricle > pulmonary artery
Vena cava > right atrium > right ventricle > pulmonary vein
Vena cava > left atrium > left ventricle > pulmonary artery
What is the function of valves in heart?
To prevent the backflow of blood in the chambers.
To allow the backflow of blood in the heart.
To initiate the flow of the blood in the heart.
Where does Atrioventricular Valves (AV valves) are located?
In between atria and ventricle chambers.
In the area where pulmonary artery leaves the right ventricle.
In the area where aorta leaves the left ventricle.
In between left and right ventricles.
Which of the following structures is considered to be the pacemaker of the heart?
AV node
AV bundle
SA node
Purkinje fiber
When impulses are conducted through the heart, transmission is delayed at the _____________ so that the ____________ may fully contract before the ___________ contract.
Sinoatrial node, atria, ventricles
Sinoatrial node, ventricles, atria
Atrioventricular node, atria, ventricles
Atrioventricular node, ventricles, atria
Lymph nodes are widely distributed throughout the body. Along the lymphatic veins they filter the _________ before it is returned to the _______.
lymph, blood
lymph, heart
blood, lymph
blood, heart
Which statement in NOT TRUE of the lymphatic system?
Lymphatic vessels are closed at one end.
Lymph has fewer plasma protein molecules than the blood plasma
The thoracic duct carries the lymph to the right subclavian vein
Returning fluid filtered out from the capillaries to the blood circulatory system
The breakdown of triglyceride into monoglyceride and fatty acid are catalyzed by enzyme ...
lipase
amylase
protease
lactase
Small globules formed when triglycerides coated with phospholipid, cholesterol and protein is called ...
Chylomicron
Chyle
Lacteal
Lymph fluid
The theory which states that transpiration pull is responsible for carrying water upward through the xylem is called
cortex-xylem theory
cohesion-pressure theory
cohesion-tension theory
pressure-tension theory
Sucrose enters the phloem sieve-tube by ____________
Active transport
Water potential
Osmosis
Diffusion
Root hair are most important to a plant because they
anchor plant in soil.
increase the surface area for absorption.
store starch.
provide habitat for nitrogen-fixing bacteria.
Sugar is loaded into the phloem from a source or an area of ______________ to a sink or an area of ______________
Low sucrose concentration, high sucrose concentration
High sucrose concentration, low sucrose concentration
Positive water potential, negative water potential
Negative water potential, positive water potential
In the pressure flow hypothesis, what causes the pressure?
Root pressure
The osmotic uptake of water by sieve tubes at the sink
The osmotic uptake of water by sieve tubes at the source
The accumulation of mineral and water by the stele in the root
