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Biology Midterm 2011-2012
Test Description: Review for Midterm; covers cells, transport, and intro to organic compounds
Instructions: Answer all questions to get your test result.
1) Which list describes the organization within multicellular organisms from least complex to most complex?
A
Organelles, cells, organs, organism
B
Cells, organelles, organs, organisms
C
Organs, organelles, cells, organisms
D
Organism, organs, organelles, cells
2) Which of these statements about enzymes is TRUE?
A
Enzymes are simple sugars.
B
Enzymes are lipid molecules.
C
Enzymes are specific for each biochemical reaction.
D
Enzymes are carbohydrate molecules.
3) The diffusion of water is also called...
A
Osmosis
B
Active Transport
C
Photosynthesis
D
Endocytosis
4) What element is present in all organic compounds?
A
Lead
B
Zinc
C
Carbon
D
Nitrogen
5) Which organic compound has a two to one ratio of hydrogen to oxygen?
A
Lipid
B
Carbohydrate
C
Enzyme
D
Protein
6) The cell membrane consists mainly of...
A
phospholipids and proteins
B
water and carbon dioxide
C
oxygen and carbon dioxide
D
carbohydrates and sugars
7) What compounds are joined in order to form proteins?
A
amino acids
B
lipids
C
carbohydrates
D
monosaccharides
8) Unlike carbohydrates and lipids, proteins contain what element?
A
Nitrogen
B
Oxygen
C
Hydrogen
D
Carbon
9) The exchange of oxygen and carbon dioxide between the body and the air occurs in the cells of your lungs. What part of the cell is the location of this exchange?
A
ribosome
B
cell membrane
C
nucleus
D
golgi body
10) Which best describes carbons ability to form covalent bonds in straight, branched, and ringed chains?
A
Carbon is dissolvable.
B
Carbon is inorganic.
C
Carbon has 4 valence electrons.
D
Carbon has 6 valence electrons.
*select an answer for all questions
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