Areas Of Revison From Mock 2 Flashcards
Prokaryotic cells
Small simple cells, containing bacteria, contain a loop of DNA
Eukaryotic cells
They are multicellular, usually appear in plants and animal fungi
Plant cells
Eukaryotic cells present in green plants
How would you adjust a microscope in order to see cells more clearly? (In a zoomed in image)
Adjust the focus using the fine adjustment knob
How would you adjust a microscope in order to see cells more clearly? (In a zoomed out image)
Use the fine knob in order to adjust the quality of the image. Change the objective lens, to a higher power of magnification.
What is the equation for magnification
Magnification = image size/real size
What advice do doctors give to patients if they want to prevent the spread of pseudomonas (form of bacteria) into a population?
The right antibiotics accustomed to the bacterial infection, the dosage should be taking exactly recommended, specimen drugs can also be administered to the patient to test the effectiveness of the antibiotic.
What is the correct balanced equation for photosynthesis?
6CO(squared) + 6H(squared)O > C(to the power of 6) H (to the power of 12) O (to the power of 6) + 6O(squared)
What type of reaction is photosynthesis and what is it?
Endothermic - energy is transformed from the surrounding environment
Name 2 extremely accurate ways if measuring the rate of photosynthesis
Using a gas syringe - measures and dispenses liquids, measure in ml
Why is it important that pondweed stays at a constant temperature
The enzymes needed for photosynthesis will become denatured if the temperature increases or decreases
What does light intensity change as distance does?
As distance doubles, the light intensity quarters
Equation for light intensity?
Light intensity = 1/ distance of the pondweed (squared)
What does a syanpse do?
Permits a neurone to pass electrical or chemical signals to another neurone
What is a relay neurone?
Found in the brain and spinal chords allowing sensory and motor neurones to communicate, motor neurones are found in the CNS controlling muscle movements.
