B3: Biology

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Marcus H
Flashcards by Marcus H, updated more than 1 year ago
Marcus H
Created by Marcus H over 9 years ago
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Question Answer
Fossil records and DNA both provide evidence for... E Evolution
What carries blood away from the heart? Arteries
Systolic pressure is... the higher measurement when the heart beats, pushing blood through the arteries.
Diastolic pressure is... the lower measurement when the heart rests between beats
DNA is made from what four different bases? A, C, G, T
In what particular ways can the bases for the DNA be paired up? A with T C with G
A gene is.. A short section of pairs of bases. This is a code for making proteins.
Why do we need proteins? For: Growth Repair and building new structures
How does DNA Replication work? (simply) The double stand "unzips" and two new double strands are formed.
Two things that affect enzymes: pH level Temperature
Define respiration The chemical process that makes energy from food in the cells in your body. - Cells make energy from food -
Aerobic Respiration is when Glucose is broken down using oxygen to make energy. Glucose + Oxygen --> Carbon dioxide + water
Anaerobic Respiration is... Chemical reactions that transfer energy from glucose into life processes WITHOUT oxygen.
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