Do you remember any of the eight
characteristics of living things?
1. Living things are based on a universal genetic code
(DNA)
2. Living things grow and develop
3. Living things respond to their environment (stimulus)
4. Living things reproduce
5. Living things maintain a stable internal environment
(homeostasis)
6. Living things obtain and use material and energy
(metabolism)
7. Living things are made up of CELLS
8. Taken as a group, living things evolve over time
Three Subatomic Particles
• Proton: (+) charged particle
found inside the nucleus
• Neutron: neutral particle
found inside the nucleus
• Electron: (-) charged
particle found outside the
nucleus in various energy
levels
Organic Compounds
Carbohydrates
Lipids
Proteins
Nucleic Acids
Monomer:
Monomer:
Monosaccharide
Monomer:
Glycerol and
Fatty Acids
Monomer:
Nucleotide
Amino Acid
1) 5 Carbon sugar, 2)
phosphate group
3)nitrogenous base
Made up of:
Made up of:
Made up of:
Made up of:
Carbon, Hydrogen, Oxygen
Carbon, Hydrogen, Oxygen
(H:O in 2:1 ratio)
(H:O not in 2:1 ratio)
Carbon, Hydrogen, Oxygen,
Nitrogen
Carbon, Hydrogen, Oxygen,
Nitrogen and Phosphorus
Sugars – glucose, fructose,
sucrose
Oils, Waxes, Butter
Enzymes
DNA and RNA
Differences between plant and
animal
Plant
• Cell wall
• Chloroplast
• Photosynthesis
• No centrioles
Animal
• No cell wall
• No chloroplast
• No photosynthesis
• Lysosomes
• Centrioles (cell division)
More review…
• Organelle for photosynthesis
– chloroplast
• Organelle to convert chemical energy into
energy the cell can use
– mitochondria
• Energy currency of the cell
– ATP
• Why are plants green?
– Chlorophyll