Science of Life (Ch.1)
Living things share the same ____ characteristics.
(6) 7 Characteristics
Define Matter....
Matter is anything that has mass and occupies space
CARBON (WHY?)
What are the two basic types of cells?
Prokaryotes and Eukaryotes
What organelle is the control center of the cell and contains genetic information (DNA)?
Nucleus
The ________ ________ involves making observations, asking questions, forming hypotheses, designing experiments, analyzing data, and drawing conclusions.
Scientific Method
_________ are made of a single kind of atom and cannot be broken down by chemical means into simpler substances.
ELEMENTS
What does ATP stand for and what does it do?
Adenosine Triphosphate = Energy for Cells
ALL CELLS have these three things (organelles) in common: _________, ____________, and ________.
Cytoplasm, Cellular Membrane, and DNA...
What two organelles do only PLANT cells have?
Cell Walls and Chloroplasts
Multicellular organisms are made up of more than one cell working together. Unicellular organisms only have one single cell.
What do atoms trade and share in order to form chemical bonds and become stable?
Valence Electrons
What are the four main classes of organic compounds? (One hint may be given...)
1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids
The cellular membrane is made of a double layered, waterproof barrier called a ____________ ____________ .
Phospholipid Bilayer
What organelle provides structure and support for cells?
Cytoskeleton
Complete the 6 Levels of Organization:
_______>Cells>_______ >______>_____> Organism
Organelle> Cells> Tissues> Organ> Organ System> Organism
The pH scale ranges from 1-14 and describes how acidic or alkaline a substance is.
What is the range of ACIDS and what is the range of BASES?
1-7 = Acidic ; 7-14 = Alkaline (Base)
Explain hydrophobic vs hydrophilic
Hydrophobic = Water "fearing" or avoiding
Hydrophilic = Water loving
What is the powerhouse of the cell? (MAKES ATP)
Mitochondria
What do ribosomes do?
Ribosomes are proteins that build other proteins.
What are the 7 characteristics of life that something must have to be considered a living organism?
1) Cell organization 2) Response to stimuli
3)Homeostasis 4) Metabolism
5)Growth/Development 6) Reproduction
7) Evolution
Name a unique property of water: (4 unique properties possible)
1. Universal Solvent (Dissolves most substances)
2. Surface tension (Cohesion and Adhesion)
3. The ability to absorb/disperse large amounts of heat while remaining cool
4. Lower density of Ice
Enzymes do what for cells?
Speed up chemical/life processes and make things easier for cells.
What major life process occurs in chloroplasts?
Photosynthesis
What does the Golgi Apparatus do?
Processes and packages proteins (like UPS, FedEx, or USPS...)