chapter 2 - what is a living organism? section 1 ... · chapter 2 - what is a living organism? ......
TRANSCRIPT
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1 Which of the following is NOT a characteristic of life?
A Growth
B Maintains Homeostasis
C Made of Cells
D Breathes Oxygen
E Reproduction
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2 Which of the following would be an example of homeostasis?
A A fox chasing a rabbit
B Sweating playing basketball
C A cell dividing
D DNA duplicating
E A sunflower head turning in the sun
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What is EVERYTHING made of?
What happens if you break a stick in half over and over and over?
Matter
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An atom is the smallest amount of an element
Gold is an ELEMENT
The least I could have is ONE ATOM of gold
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Atoms combine to make everything we have!
Molecule
Compound
Two or more of same atom
Two ore more atoms of different elements
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3 If I took a copper coin and kept breaking it down until I had the smallest thing that makes up the coin what would I have?
A Atom
B Compound
C Ion
D Molecule
E Elements
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4 Hydrogen likes to exist as two hydrogens bonded together. This is an example of a(n)
A Atom
B Compound
C Ion
D Molecule
E Element
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Organic Compounds
Chemicals of living things
Contain Carbon
These chemicals are considered macromolecules because they are quite large
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Proteins
Made of chains of amino acids
Enzymes
Antibodies
Muscle fiber
We get our amino acids to make proteins from what we eat!
Vegetarians?
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Nucleic Acids
Made up of nucleotides
DNA (deoxyribenucleic acid)
RNA (ribonucleic acid)
Stores genetic information
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5 When you eat meat you are eating mostly what?
A Carbohydrates
B Proteins
C Lipids
D Nucleic Acids
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6 The scientific name for fats is __________?
A Carbohydrates
B Proteins
C Lipids
D Nucleic Acids
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7 When eating vegetables, fruits, and grains you are primarily eating __________.
A Carbohydrates
B Proteins
C Lipids
D Nucleic Acids
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Taxonomy is classifying living organisms
Carl Linnaeus
Developed binomial nomenclature
means "two part name"
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Eukarya
Nucleus
Larger cells
Most are multicellular
Includes protists, fungi, plants and animals
No cell wall