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IB Biology SL Final Study Guide questions with correct answers
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IB Biology SL Final Study Guide questions with correct answers
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IB Biology SL Final Study Guidequestions with correct answers
What is the cell theory? - .......🔷ANSWERS🔶......✔✔ 1. cells are the basic unit of life 2. All living
things are made up of cells 3. all cells come from pre--existing cells.
What is the difference between the structure of all prokaryotes and all eukaryotes?
- .......🔷ANSWERS🔶......✔✔ prokaryotes has a nuclei and eukaryotes has nuclear envelope
A cell has cytoplasm, a cell wall, naked DNA and ribosomes. Based on this information, what type of
cell could this be? - .......🔷ANSWERS🔶......✔✔ A bacterium
Which pair of features is correct for both a human liver cell and an Escherichia coli cell?
- .......🔷ANSWERS🔶......✔✔ Human liver cell contains DNA associated with protein and
Escherichia coli cell contains naked DNA
Which structure are present in both plant and animal cell? - .......🔷ANSWERS🔶......✔✔
mitochondrion and ribosomes
What feature do plant cells have but not animal cells? - .......🔷ANSWERS🔶......✔✔ cell walls
Which cell organelle is responsible for the production of proteins to be exported from the cell?
- .......🔷ANSWERS🔶......✔✔ Rough endoplasmic reticulum
Which is the best explanation of the effect of increasing the substrate concentration on the rate of an
enzyme controlled reaction? - .......🔷ANSWERS🔶......✔✔ The rate increases up to a maximum
threshold rate then stops increasing
What would be the effect of increasing the pH of a solution from pH4.0 to pH9.0 on the rate of a
reaction paralyzed by an enzyme which has an optimum pH of 7.0? - .......🔷ANSWERS🔶......✔✔
The rate would increase and then decrease
, Which phrase best describes enzyme substrate specificity? - .......🔷ANSWERS🔶......✔✔ The
enzyme has an active site that only one specific substrate can bind to
which molecule is a monosaccharide? - .......🔷ANSWERS🔶......✔✔ glucose
What is the role of a carbohydrates in animal cells? - .......🔷ANSWERS🔶......✔✔ energy
What features are correct for hydrogen bonding? - .......🔷ANSWERS🔶......✔✔ it is involved in the
cohesion of water and it results in the thermal properties of water
What best describes the tertiary structure of a protein? - .......🔷ANSWERS🔶......✔✔ interactions
forming hydrogen bonds between the amino acids
What is true about enzymes? - .......🔷ANSWERS🔶......✔✔ They lower the energy of activation for a
reaction
The part of the enzyme where the substrate binds is knows as the... - .......🔷ANSWERS🔶......✔✔
active site
When the temperature of an enzyme controlled reaction was increased from 15 C to 30 C the
reaction rate also increased. Why? - .......🔷ANSWERS🔶......✔✔ The enzymes have more kinetic
energy so collide with more substrate molecules
What is not a primary function of protein molecules? - .......🔷ANSWERS🔶......✔✔ energy storage
What can reduce the effect of a competitive inhibitor of an enzyme? - .......🔷ANSWERS🔶......✔✔
increase the substrate concentration
which of the following could cause denaturation of an enzyme? - .......🔷ANSWERS🔶......✔✔ high
temperature
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