1. Characteristics of Living Things Section 1

2. What is Biology? “Bio-” life; living things “-logy” the study of
Biology is the study of life
What makes a living thing?
Nutrition
Respiration
Movement
Growth
Excretion
Sensitivity
Reproduction

3. What makes a Living Thing?
Nutrition
Obtaining food to it can have energy and the substances need to grow and repair itself
Examples?
Carbohydrates, protein, vitamins, minerals…
How do plants get nutrition?
Photosynthesis (energy from light)
Soil
How do animals get nutrition?
Ingestion (eating and drinking)

4. What makes a Living Thing?
2) Respiration
Taking in gases to help make or break compounds
Help in chemical reactions
What do gas do animals need?
O2 (Oxygen)
Glucose + O2  CO2 +H2O +Energy
What do gas do plants need?
CO2 (Carbon Dioxide)
CO2 + H2O + Energy  Glucose + O2
Do all animals need oxygen?
No. Some bacteria live without O2

5. What makes a Living Thing?
3) Movement
All living things can move but some move slower than others
Animals move fast to catch food or escape danger
Cheetah 115 km/h
Falcon 320 km/h
Tiger beetle 494 km/h!
Plants move slower
Leaves reach up to get as much sun as possible
Roots dive down to make the plant stable

6. What makes a Living Thing?
4) Growth
Bodies grow in size over time
More cells are produced/ cells grow in size
5) Excretion
Waste material produced from eating and growing
Metabolism chemical reactions in the organism
Urine (pee), Fecal (poop), CO2…
Is O2 from plants a waste material?
No. Plants can use O2 too

7. What makes a Living Thing?
6) Sensitivity
Responding to the environment
Stimulus a change or information
Response reacting to stimulus
What stimulus do you take in everyday? How do you respond?

8. What makes a Living Thing?
7) Reproduction
Making new organisms
All living things die, so new living things must be produced to replace them
Asexual organism divides into two identical copies
Sexual two organisms combine gametes (sex cells) to produce an offspring
Produces variation which helps surviving changes in the environment

9. Mrs. Gren How can I remember all of these new words?! Memory device:
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
Memory devices are very common in biology

10. Wow! Biology is SO cool! Homework Read 1.1-1.3
Vocabulary List for ALL Bolded words
Answer summary questions on p. 3 in your notes