1.
ENERGY & LIFE

2. Remember… AUTOTROPHS Ex: Green plants, a few bacteria
Remember…
AUTOTROPHS
_____________ can make their own food using energy from sunlight.
Ex: Green plants, a few bacteria

3. Remember… HETEROTROPHS
Remember…
HETEROTROPHS
__________________ get energy by consuming other organisms
Ex: Animals, fungi, most bacteria

4. WHAT DO CELLS USE ENERGY FOR ?
Remember…
WHAT DO CELLS USE ENERGY FOR ?
ACTIVE TRANSPORT
Na+ - K + PUMP Endocytosis
Exocytosis
Images:
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5. WHAT DO CELLS USE ENERGY FOR ?
Movement
Synthesis of biomolecules
Reproduction
Meiosis:
Cilia:
Replication:
Transcription:
Translation:

6. CELLS USE ATP TO STORE and RELEASE ENERGY3
____ PHOSPHATE GROUPS
Adenosine triphosphate
ATP = __________________________

7. ATP can change into ADP Adenosine diphosphate 2 ____ PHOSPHATE GROUPS

8. ATP releases energy stored in a high energy
ATP releases energy stored
in a high energy
chemical bond by removing the phosphate and
becoming ADP
ATP → ____ + ____ +
ADP

9. Cells ________ energy by adding the
phosphate back on to ADP to make ATP.
STORE
The energy to do this comes from
____________ like _____________
FOODS
GLUCOSE
It’s like recharging the battery !
ADP + ___ + ________ → ___
ATP

10. ATP is useful BUT . . .
ATP is great for TRANSFERRING ENERGY, but _____ good for storing ________ amounts of energy for the ______________.
A single molecule of GLUCOSE stores more than _________the chemical energy.
Cells only keep enough ATP
around to last a few seconds and
recharge it by burning___________.
NOT
LARGE
LONG TERM
90 times
glucose

11.
Remember…
CARBOHYDRATES contain Carbon, Hydrogen, & Oxygen (with a ratio of 1 C: 2 H: 1 O)
Example:
GLUCOSE C6H12O6
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12. MONOSACCHARIDES Single sugar molecules
C6H12O6
C6H12O6
C6H12O6
C5H10O5

13. CARBOHYDRATES SUPPLY ENERGY
Remember …
CARBOHYDRATES SUPPLY ENERGY
Cells burn GLUCOSE
for their energy needs
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14. CARBOHYDRATES are building blocks for other molecules
ATP
DNA & RNA
POLYSACCHARIDES
ATP by Riedell

15. Remember …
Section 2-3
Starch
Glucose

16. Molecules made by joining MANY sugar molecules together are called ___________________
POLYSACCHARIDES
EXAMPLES:
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17. _________ cells store GLUCOSE to use later.
CARBOHYDRATES SUPPLY ENERGY
GLYCOGEN is
the way
_________ cells store GLUCOSE
to use later.
ANIMAL
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18. store GLUCOSE for later.
CARBOHYDRATES SUPPLY ENERGY
STARCH is
the way
_______ cells
store GLUCOSE for later.
PLANT
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