1. CB 6.9
Animal Cell

2. Bonds holding atoms together to make molecules:
Covalent
Strong
Sharing Electrons
When broken = chemical reaction
energy consumed or released
Ionic
Weak
Positive and Negative atoms attracted to each other

3. nonpolar covalent bond ionic bond+ H C
nonpolar covalent bond
ionic bond
methane +
water
polar covalent bond

4. Four types of molecules that are primarily found in living systems (biomolecules):
Carbohydrates/ Sugars
Nucleotides- DNA/RNA
Amino Acids- Proteins
Lipids- fats/phospholipids

5. CB 6.2

6. Biomolecules contain many carbon atoms
CB 4.5

7. Biomolecules contain many carbon atoms
CB 4.5

8. Biomolecules contain many carbon atoms
CB 4.5
Biomolecules contain many carbon atoms

9. Biomolecules contain many carbon atoms
CB 4.5

10. CB 4.10
Combinations of different other atoms changes the characteristics of the biomolecule.

11. Four types of molecules that are primarily found in living systems (biomolecules):
Carbohydrates/ Sugars
Nucleotides- DNA/RNA
Amino Acids- Proteins
Lipids- fats/phospholipids

12. Carbohydrates- rings of carbon with oxygen
CB 5.7
Carbohydrates- rings of carbon with oxygen

13. CB 5.8
Carb’s-
provide energy
and
structural support

14. CB 5.26
Nucleotides

15. Different bases combine on the sugar/phosphate backbone to store information...
CB 5.26

16. Certain nucleotide bases pair with each other
CB 16.7
Certain nucleotide bases pair with each other
Ionic bond
too
big A A
too
small T T
just
right A T

17. Chains of DNA can store information:

18. Information flow in cells
CB 5.25
Information flow in cells
Protein

19. The basic structure of amino acids
CB 5.17
The basic structure of amino acids

20. CB 5.17
the
20 Amino
Acids

21. Amino acids connect together to make proteins.
CB 5.20

22. Proteins are the “doers” of the cell.
They act as:
Enzymes
Structural Support
Transporters
Signals

23. membranes/energy storage
Lipids and Fats-
membranes/energy storage
CB 5.13
Polar/
Hydrophilic head
Non-polar/
Hydrophobic tail

24. Lipids- membranes
CB 5.14

25. CB 6.9

26. Membranes act as barriers separating inside from outside
CB 7.2
Membranes act as barriers separating inside from outside

27. Membranes have associated proteins
CB 7.7