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Byrons Biology LC
| Question | Answer |
|---|---|
| Yeast cells produce ethanol (alcohol) in a process called fermentation. Is this process affected by temperature? | Yes, Enzyme Action |
| Observation of a transverse section of a dicotyledonous stem reveals vascular and other tissues. Name two of the tissues that are not vascular tissues. | Dermal+Ground |
| Answer the following questions in relation to the preparation of a microscope slide of a transverse section of a dicotyledonous stem. State one reason why you used an herbaceous stem rather than a woody one. | Easier to cut |
| Answer the following questions in relation to the preparation of a microscope slide of a transverse section of a dicotyledonous stem.Explain how you cut the section. | Attached to microtome. Backed Blade. Raise it small layer. Right Angle |
| Cardiac muscle may be described as a contractile tissue. Explain the meaning of of the underlined term. | It can Shorten. |
| Answer the following questions in relation to the preparation of a microscope slide of a transverse section of a dicotyledonous stem. Why is it desirable to cut the section as thinly as possible? | Easier to see under microscope |
| Describe how you dissected a mammalian heart in order to investigate the internal structure of atria and ventricles. | Identify front from coronary artery. Cut sides with sample on board. Glasses + goggles. |
| State the procedure that you followed to expose a semilunar valve. | Cut Aorta |
| Where in your dissection did you find the origin of the coronary artery? | Aorta |
| niche | role in ecosystem |
| Biotic Factor | Bacteria/ Parasite |
| pyramid of numbers | 1 Sparrow Hawk - 3 Thrush - 100 Caterpillar - 3,500 Oak Leaves |
| ATP is an abbreviation. What does it stand for? | Adenosine Triphosphate |
| 1st pathway in stage one of photosynthesis | Cyclic photophosphorylation: é› chlorophyll ATP made |
| 2nd pathway in stage one of photosynthesis | NADH |