Connected Biology Midterm Review Semester I 2014
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What is biology and what does knowledge of biology help people do?
Define cell
Define organism
Define species.
What characteristics are shared by all organisms?
List and describe the steps of scientific inquiry.
What is the difference between dependent and independent variables?
Define Biosphere
Define atom
Define molecule
Define compound.
What does polar mean.
What are hydrogen bonds?
Compare and contrast acids and bases and their pH.
What are the 4 carbon-based (biological) molecules and what are they made up of and found in?
What are chemical reactions?
What are reactants and products?
What do enzymes do?
What are the 3 parts of the Cell Theory?
Match the cell parts/organelles with their function:
_____ plasma membrane
a. region inside nucleus used for making proteins
_____ cell wall
b. modifies proteins, repackages them in a new vesicle
_____ nucleus
c. manages cell functions
_____ nucleolus
d. folded membranes used as a delivery system and lipid synthesis
_____ cytoplasm
_____ endoplasmic reticulum
e. boundary between cell and its external environment that helps maintain a
chemical balance within the cell
f. found on endoplasmic reticulum and used for protein synthesis
_____ ribosome
g. stores food, enzymes and other materials needed by the cell
_____ golgi apparatus
h. breaks down food molecules to release energy to cell
_____ vacuole
i. provides structure and support to plant cells
_____ lysosome
j. tail that moves in a whip-like motion to move cell
_____ mitochondria
_____ flagella
k. pigment containing organelle that converts solar energy into chemical energy in plant cells
l. tiny hair-like projections that beat in a coordinated motion to move cell
_____ cilia
m. jelly-like substance inside cell where important chemical reactions take place
_____chloroplast
n. digests materials and worn-out cell parts
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What is the structure and function of the cell membrane?
Draw and label a phospholipid.
Define Diffusion
Define Osmosis
Define concentration gradient
Define passive transport
Define active transport.
What is endocytosis
What is exocytosis?
What organelle is involved in endocytosis and exocytosis?
Define ATP
Define Chemosynthesis.
How is energy stored and released in ATP?
Define Photosynthesis.
Write the equation for photosynthesis. Identify the reactants and products.
Define Cellular Respiration.
Write the equation for cellular respiration. Identify the reactants and products.