B4 Flashcards
What is the word equation for photosynthesis? What is the balanced symbol equation for photosynthesis?
Carbon Dioxide + Water (+ light energy) —> Glucose + Oxygen
6CO^2 + 6H^2O (+ light energy) —> C^6H^12O^6 + 6O^2.
^ = Subscript
Photosynthesis uses energy from sunlight to build large ______ Molecules.
Food.
What three factors affect photosynthesis?
Temperature, Carbon Dioxide and Light Intensity.
What is the equation for photosynthesis?
Carbon dioxide + water +(light energy) —> glucose + oxygen.
What is an enzyme? Where are they made?
Enzymes are are proteins that speed up chemical reactions. They are made in the cytoplasm, similar to amino acids.
What “Mechanism” do enzymes use? What does this mean?
Lock and Key, the substrate (The chemical that the enzyme work with) must be the correct shape to fit the active site of the enzyme.
The rate of an enzyme-controlled reaction increases as the _______ increases.
Temperature.
However high _______ and the extremes of __ levels stops the enzyme from changing shape of the active site.
Temperatures, pH.
What does aerobic respiration require?
Oxygen.
What is the word equation for aerobic respiration? What is the balanced symbol equation for this?
Glucose + Oxygen —> Carbon Dioxide + Water (+ energy release).
C^6H^12O^6 + 6O^2 —> 6CO^2 + 6H^2O (+ energy release).
^ = Subscript
Which two main type of cells use aerobic respiration?
Animal cells and Plant cells (and some microorganisms).
Where does anaerobic respiration take place?
Where oxygen is absent (or in very low concentration).
What is the anaerobic respiration word equation for animal cells (and some bacteria)?
Glucose —> Lactic Acid (+ energy released).
What is the anaerobic respiration word equation for plant cells and some microorganisms (such as yeast)?
Glucose —> Ethanol + Carbon Dioxide (+ energy released).
What is the symbol equation for ethanol?
C^2H^6O.
^ = Subscript
The cell _____ regulates what enters and leaves the cell. It allows ___ and ___ to move freely but it is a barrier to other substances.
Membrane, Gases and Water.
____ (a special form of diffusion) is the overall movement of water, through a partially ______ membrane, from a dilute to a more ______ solution.
Osmosis, Permeable, Concentrated.
Oxygen and Carbon Dioxide move into and out of leaves by ______ - the passive movement of molecules from an area for ___ concentraton to ___ concentration.
Diffusion, High to Low.
_____ Transport of molecules uses energy to transport molecules across the cell _____.
It is required to move _____ into plant roots.
Active, Membrane, Nitrates.
What are the four main features of Animal Cells?
Nucleus, Cytoplasm, a Cell Membrane and Mitochondria.
What three main features do Plant Cells have that Animal Cells do not?
Chloroplasts, Cell Wall, Vacuole.
Microbial cells have a cell _____ and a cell ____. Cells of bacteria have no _____, but circular ___ in their cytoplasm. Yeast has no _____ but has _______, which bacteria does not.
Membrane, Wall, Nucleus, DNA, Nucleus, Mitochondria.
In a rate of photosynthesis graph, when the line levels of there is a _______ ____.
Limiting Factor.
