Macromolecules & Nutrients
Which nutrient provides the body with quick energy?
Glucose/carbohydrates
What happens to atoms during a chemical reaction?
They are rearranged.
Where does photosynthesis mainly occur?
In plant cells/chloroplasts
What molecule is broken down during cellular respiration?
Glucose
What gas do plants take from the atmosphere?
Carbon dioxide
Proteins are made of smaller units called what?
Amino acids
If there are 6 carbon atoms before a reaction, how many must exist after?
6
Name the two matter reactants of photosynthesis.
Carbon dioxide and water
Name both main reactants.
Glucose and oxygen
Name one place carbon can be stored.
Atmosphere, organisms, soil, oceans, etc.
Which would help digestion more: fiber or fat?
Fiber
What changes during a chemical reaction: the atoms themselves or how they're arranged?
How they're arranged.
If photosynthesis decreases, what gas would plants release less of?
Oxygen
Name the major outputs of cellular respiration.
Carbon dioxide, water, and released energy.
How can carbon move from a plant to a rabbit?
The rabbit eats the plant.
Made of amino acids.
Protein
A particle model loses one oxygen atom between reactants and products. What needs to be fixed?
The products must contain the missing oxygen atom.
How does photosynthesis affect atmospheric oxygen?
It adds/releases oxygen.
Which process releases oxygen?
Photosynthesis
Why is decomposition part of the carbon cycle?
It transfers carbon from dead organisms to other reservoirs.
A person's diet contains very little fiber. Which body system would most directly be affected?
Digestive system
“A gas leaving a reaction means matter was destroyed.” Correct it.
The matter still exists; some of it is now in gaseous form.
If carbon dioxide levels around a plant become extremely limited, explain what happens to glucose production.
It decreases because CO₂ is a reactant needed to make glucose.
A model shows CO₂ traveling from photosynthesis to respiration. What's wrong?
The main CO₂ flow should be from respiration to photosynthesis.
CO₂ → tree → deer → atmosphere. Name the three processes/transfers.
Photosynthesis → consumption → cellular respiration