exam 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Photosynthesis takes in ________ molecules and coverts to____? | organic fuel and energy
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| red light alone vs. red light together | alone promotes little photosynthesis and together they are more effective they create more photosynthesis.
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| where does the cyclic phosphorylation occur? | In the chloroplast in the thylakoid membrane
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| why is noncylic phosphorylation important? | The NAPDH provides electrons to make sugars to make the most energy.
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| Adaptations of plants to conserve the H20, C02, and photons. | They shut the stoma to limit water loss by transportation. They have a limited time to build O2 and diminish C02.
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| membranes are (hydrophilic, hydrophobic) ? | They are both hydrophilic and hydrophobic. The heads are hydrophilic and the trails are hydrophobic.
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| Chemical composition of an enzyme? | They are mostly protein but not all protein. There is a case of sugar.
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| what is potential energy? | It is stored energy.
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| What are the 3 main types of cellular work? | Chemical, Mechanical, and Transport
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| Feedback inhibition? | They regulate metabolism
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| How does shape affect function? | Shape always determines function.
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| What are RNA ribozymes? | Sugar
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| Drugs, poisons, and pesticides on production of ATP? | They are irreversible inhibitors that bind to enzymes preventing metabolic reactions. Cyanide inhibits ATP production.
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| What is the purpose of trans membrane proteins? | They are a passageway
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| What composes cell surface marker? | Glyco lipids and glyco proteins
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| Phospholipids and bilayers | They are both hydrophilic and hydrophobic. Phospholipids form bilayers spontaneously.
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| Diffusion of CO2 and O2 | They are small and non polar. They are neutral.
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| Maintaining proper balance in a cell | sodium, potassium and calcium.
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| Isotonic, hypertonic, and hypotonic. | Isotonic is equal, hypertonic is more water on the outside and hypotonic is more water on the inside.
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| Transport of large molecules into the cell. | They are to big so they need to be broken down. They use vesicles for transport. (fuses with membrane and releases content) Exocytosis and endocytosis.
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| Receptor mediated endocytosis. | receives and picks what its pulling in.
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| Cellular respiration creates ________ for cells? | ATP
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| Use of O2 | Aerobically
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| without O2 | Anaerobically
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| Efficiency of ATP? | very EFFICIENT
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| Oxidation and reduction reactions. | Oxidized= LOSS OF AN ELECTRON
reduced= gain of electrons
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| The purpose of NAD+ | Transport electrons down the chain
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| What is the final electron Acceptor? | OXYGEN
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| Where does Glycolysis take place ? | In the cytoplasm
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| Where does the citric acid cycle take place and how much ATP is produced? | In the mitochondria and small amount of ATP.
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| Glycolysis as an intermediate and its by product to reactants. | It occurs in the middle of the process. Its like a foundation. It becomes product of step 1 to become reactant to step 2 to become product end of step 2 to become reactant to step 3.
Its by product is pyruvate
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| Why is the electron transport chain so effective? | It is more efficient
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| What is the by product of yeast and fermentation? | Carbon dioxide
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| What do plants split? | Water
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| Energy wavelengths and how much energy is generated | The longer the wave the less energy the shorter the way the more energy
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| Light intensisty | number of photons
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| Importance of pigments | Absorb low energy light from visible spectrum
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| p700 has_______ paths p600 has _______paths | p700 has 2 paths
p600 has 1 path
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| Waste products of photosytems? | Photosystem 1 doesn't have a waste product
photosytem 2 is oxygen
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| What enter the calvin cycle and what exits? | oxygen enters and glucose exits
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| coenzymes as transporters |
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| Stage 3 oxidation phosphorylation | The final stage involves gradient, hydrogen ions and osmosis
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| Active diffusion across gradient | molecules spreading out
uses energy
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| Different proteins in lipid bilayers and what they do? | 50+ different proteins they attach the membrane to cytoskelton, junction between cells, used for identification purposes.
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| Enzymes as inhibitors | one will compete and the other will change there shape temp
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| enzyme and substrate | only affects the enzyme. high temps denature the enzyme. The slow at low temps. They are specific to substrate. if the sub doesn't fit the reaction wont occur.
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| energy activation starting chemical reactions | the minimum energy required to start a chemical reaction
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| What phosphorylation basically means? | adding phosphate to make energy
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| energy coupling | the use of an exergonic process to drive an endergonic one
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| Storage bonds of endergonic energy | covalent bonds
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| destruction by cfc's | more of a impact on global warming.
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| Why are cam plants different? | They shut there stoma at night to capture CO2
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