ib biology topic 2 molecular biology revision sheet · ib biology topic 2 – molecular biology...

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IB Biology Topic 2 – Molecular Biology Revision Sheet © David Faure, InThinking http://www.thinkib.net/biology Condensation reactions are ________________________________________________________________ ________________________________________________________________ Hydrolysis reactions are ________________________________________________________________ ________________________________________________________________ Properties of Water: __________________ __________________ __________________ __________________ The importance of water for living things _____________________________ _____________________________ _____________________________ _____________________________ Molecular diagram of glucose Diagram of ribose, Fatty acids can be saturated, which means _________________________________ or monounsaturated that means ___________________________________ or polyunsaturated. _________________________________ A cis isomer of a fatty acid is. _________________________________ Diagrams of fatty acids The effect of Temperature on enzyme reaction rates is ________________ _____________________________________________________________ pH affects enzymes by ___________________________________________ ______________________________________________________________ and substrate concentration changes the rate of activity of enzymes because ______________________________________________________________. . How does the shape of an enzyme help its function? __________________ ______________________________________________________________ ______________________________________________________________ Examples of proteins: - a few details of each. Insulin ______________________________________________________ RuBISCO _____________________________________________________ Spider silk ____________________________________________________ Rhodopsin ____________________________________________________ Enzymes _____________________________________________________ A proteome is _________________________________________________ Use this diagram of a generalized amino acid to draw molecular diagrams of peptide bond formation. How many different amino acids are there? ____________ Advantages or immobilization of lactase in alginate beads are _____________ _______________________________________________________________ The similarities in structure between DNA and RNA are _________________________ ____________________________________ _____________________________________________________________ Complementary base pairing is ____________________________________ ______________________________________________________________ Semi-conservative replication is ____________________________________ _______________________________________________________________ A codon is ___________________ Anticodons are _____________________ DNA replication is controlled by these enzymes whose functions are: Helicase_____________________ DNA polymerase ______________ ____________________________ Transcription of DNA is _____________ ________________________________ Translation is ______________________ _________________________________ Carbon atoms can form four ______________ bonds. Carbon compounds which life is based on are; _____________ , ________________ , ________________ , ________________ Metabolism is _______________________________________ Anablism is _______________________ Catabolism is _____________________ The most common Elements found in living things are: _________ , _________ , _________ ,_________ Other elements & their functions are; Sulfur - _________________________________ Calcium - _________________________________ Iron - ____________________________________ Phosphorous _____________________________

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Page 1: IB Biology Topic 2 Molecular Biology Revision Sheet · IB Biology Topic 2 – Molecular Biology Revision Sheet © David Faure, InThinking Condensation reactions are _____ _____ _____

IB Biology Topic 2 – Molecular Biology Revision Sheet

© David Faure, InThinking http://www.thinkib.net/biology

Condensation reactions are

________________________________________________________________

________________________________________________________________

Hydrolysis reactions are

________________________________________________________________

________________________________________________________________

Properties of Water:

__________________

__________________

__________________

__________________

The importance of water for living things

_____________________________

_____________________________

_____________________________

_____________________________

Molecular diagram of glucose

Diagram of ribose, Fatty acids can be saturated, which means

_________________________________

or monounsaturated that means

___________________________________

or polyunsaturated.

_________________________________

A cis isomer of a fatty acid is.

_________________________________

Diagrams of fatty acids

The effect of Temperature on enzyme reaction rates is ________________

_____________________________________________________________

pH affects enzymes by ___________________________________________

______________________________________________________________

and substrate concentration changes the rate of activity of enzymes because

______________________________________________________________.

. How does the shape of an enzyme help its function? __________________

______________________________________________________________

______________________________________________________________

Examples of proteins: - a few details of each.

Insulin ______________________________________________________

RuBISCO _____________________________________________________

Spider silk ____________________________________________________

Rhodopsin ____________________________________________________

Enzymes _____________________________________________________

A proteome is _________________________________________________

Use this diagram of a generalized amino acid to draw molecular diagrams of

peptide bond formation.

How many different amino acids are there? ____________

Advantages or immobilization of lactase in alginate beads are _____________

_______________________________________________________________

The similarities in structure between DNA and RNA are

_________________________ ____________________________________

_____________________________________________________________

Complementary base pairing is ____________________________________

______________________________________________________________

Semi-conservative replication is ____________________________________

_______________________________________________________________

A codon is ___________________ Anticodons are _____________________

DNA replication is controlled by these

enzymes whose functions are:

Helicase_____________________

DNA polymerase ______________

____________________________

Transcription of DNA is _____________

________________________________

Translation is ______________________

_________________________________

Carbon atoms can form four ______________ bonds.

Carbon compounds which life is based on are; _____________ ,

________________ , ________________ , ________________

Metabolism is _______________________________________

Anablism is _______________________

Catabolism is _____________________

The most common Elements found in living things are:

_________ , _________ , _________ ,_________

Other elements & their functions are;

Sulfur - _________________________________

Calcium - _________________________________

Iron - ____________________________________

Phosphorous _____________________________

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covalent
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carbohydrates
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lipids
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nucleic acids
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protein
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All the enzyme catalysed reactions in a cell
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building larger molecules from smaller molecules
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breaking large molecules into smaller molecules
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cohesive
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adhesive
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excellent solvent
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high specific heat capacity (thermal properties)
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allows transport of many substances in blood
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allows water to be pulled up xylem / surface tension
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water only changes temp slowly maintaining a stable environment for aquatic organisms Also - lots of energy is lost by sweating.
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water sticks to other things, capillary action
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Carbon Hydrogen Oxygen Nitrogen
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found in some amino acids
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Bones and teeth, nerve impulses and muscle contractions
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Part of Hemoglobin molecuees
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Found in DNA RNA and phospholipids and ATP
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Reactions which join two monomers resulting in the loss of a water molecule.
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Reactions which separate two monomers, invlovling the addition of water. e.g. Maltose --> Glucose
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Amino acids --> polypeptide
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they have no double bonds,
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there is a single double bond
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there is more than one double bond
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Increases up to optimum (~40°C) then decreases rapidly (denatures enzyme)
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changes in pH change the shape of the active site.
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The further the pH is from the optimum pH of the enzyme - greater the effect.
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Cis has both H molecule on the double bond on the same side
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This is a 'trans'
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the more substrate there is the faster the reaction, until all the active sites are full.
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The active site binds to the enzyme's substrate, it makes enzymes substrate specific
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A hormone released into blood. binds to receptors in liver & lowers conc of glucose
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Enzyme which fixes CO2 to RuBP during photosynthesis - globular shape
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Fibrous protein, long thin and very strong
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A light sensitive pigment found in cells of the retina
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Globular proteins with active sites which bind to a substrate.
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all of the proteins expressed in a cell.
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20
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The
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The enzyme can
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be easily separated from the milk and reused if it is immobilized
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both have sugar phosphate backbone both are made from nucleotides (base sugar phosphate units)
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The fact that A (adenine) always pairs with T (thymine)
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and C (cytosine) always pairs with G (Guanine)
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the way a new strand of DNA is built on each of the
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original strands. Half of the DNA in each strand is 'conserved'
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3 bases on a mRNA
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3 bases on a tRNA molecule
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uncoils and unzips DNA
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builds a new DNA strand on the original strand
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the creation of a single strand of mRNA from a DNA molecule
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the creation of a polypeptide from a mRNA strand on the ribosomes in a cell