Term
Unicellular organisms transfer O2, nutrients and waste through __________.
Multicellular through _______. |
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Definition
unicellular- Diffusion.
multicellular- convection |
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Term
| What are the 2 types of circulation systems and give an example of them. |
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Definition
Open circulatory, no distinction between blood and extracellular fluids- insects have open circulatory.
Closed-blood is enclosed in blood vessels - vertebrates |
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Term
| What are the fuctions of the circulatory systems? |
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Definition
I. transportation- Oxygen exchnge, Nutrients, and waste disposal (excretory)
II.Regulation- hormone transport, temperature regulation
III.Protective- Hemostasis- prevention of blood loss, inflammation and immune response. |
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Term
| What is the liquid portion of blood made up of? Describe some characteristics of it. |
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Definition
| Plasma- liquid portion of blood conatining water, salts, glucose and metabolites. About 55% of blood is plasma. |
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Term
| Red bloods cells make up _____ (volume) of the blood and contain _______ to absorb oxygen. Also most have a _______ except in mammals. |
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Definition
| ~44% of blood is rbc (erthyocytes. MOstly made of hemoglobin and contains a nucleus in all vertebrates besides mammals. |
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Term
| Blood Pressure = __________x__________ |
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Definition
| Blood Pressure= cardiac output x peripheral resistance |
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Term
| ______ protect the body from disease while _______ prevent blood loss |
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Definition
White bloods cells (Leukocytes)
platelets (thrombocytes) |
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Term
| What is diastole and systole? |
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Definition
Diastole- relaxation
systole- contraction |
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Term
| What are the two circuits of the heart? |
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Definition
Right side- pulmonary (to the lungs) and low pressure.
Left side- systemic (to the body) and high pressure. |
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Term
Amphibians get ventilation by _______ and this is ________ pressure.
Reptiles get ventilation by___________&_________. This produces a ________ pressure. |
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Definition
Amphibians- ventilation by gulping, gives positive pressure. Major gas exchange occurs through skin for most amphimbians.
Reptiles- Ventilation through thoraic expansion and contraction. GIves negative pressure, more efficient. Scaly skin prevents gas exchange and water loss. |
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Term
| How is oxygen and carbon dioxide transported in the blood. |
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Definition
Oxygen gets transported on blood through hemoglobin.
Carbon Dioxide - travels as bicarbonate (72%) and dissolved (8%) and attached to hemoglobin (20%). |
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Term
As pH decreases, oxygen binding _____.
As temp increases, oxygen binding _____. |
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Definition
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