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18 Cards in this Set
- Front
- Back
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what are lipids function? what is the structure of lipids? |
1. energy storage, essential fatty acids, insulation 2. |
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label the function group in a nucleotide: |
a) |
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how does a phospholipid interact with water to form a plasma membrane? |
hydrophobic tails cluster together while polar heads stick to water molecules (bi layer membrane) |
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what does hydrophobic and hydrophillic mean? |
Hydrophobic= doesn't dissolve in h2o hydrophillic= dissolves in h2o |
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what does hydrophobic/phylicc mean to polarity? |
the hydrophobic/hyrophylicc duality of the phospholipid causes it to form spherical shapes or membranes upon contact with the water |
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label this structure of a phospholipid |
a) |
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label the plasma membrane |
a) |
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what is the difference between saturated and unsaturated fat? |
saturated: have single bonds between all carbon pairs unsaturated: double bonds between one or more carbon pairs |
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what is the difference between di, mono and tri glycerides? |
each prefix= the number of fatty acid tails |
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define a protein define a peptide how many amino acids peptide/polypeptides have? |
peptides are shorter chains of amino acids protiens are chains of amino acids folded into complex strucutres 2+ amino= peptide |
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what are examples of the location and function of steroids? |
testosterone >testes : hormone for male sexual development estrogen> ovaries : hormone for female sexual development |
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what is the difference between a monomer and a polymer in nucliec acids? what is the difference between RNA and DNA nucletoids? |
1. monomer= nucleotide 2. polymer= nucleic acid D eoxyribonucleic N ucliec A cid (double strand) R ibonucliec N ucliec A cid (single strand) |
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How do nucletoids pair to make DNA ? |
the nitrogenous base joins together pairing lettering a>t g>c |
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what is the process of translation? what is the process of transcription? |
1. DNA is transferred to messenger RNA (mRNA) molecule 2. after translation DNA is a template for complementary base pairing and enzyme RNA polymerase which turns mRNA into mature mRNA |
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how many amino acids does the human body need? what is an essential amino acid? how to humans source essential amino acids? |
1. 20 (11 non-essential , 9 essential) 2. ones our own bodies can't synthesize 3. by eating foods containing them such as eggs (complete 9), meat, soybeans and quinoa |
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what is the molecular structure of amino acids? |
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what are the monomers and polymers of proteins and what reaction binds them? |
monomers= amino acids polymers= peptides peptide bond |
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what is the biological significance of surface area and volume in terms of cell size and survival of an organism? |
surface area affects the rate at which particles enter and exit the cell. volume affects the rate at which materials are made/ used in the cell. |
