Ch 6 3 Of 3: Question Preview (ID: 2752)

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Iron and trace elements in marine life are essential for
a) constructing specialized proteins, such as hemoglobin and enzymes
b) sinking to the sea floor

____ transport is the movement of materials through diffusion, ______ transport requires energy to move materials from areas of low concentration to areas of h igh concentration
a) Passive, Acitive
b) Active, Passive

___________________ can control the water concentration of their cells. The water concentration in the cells of _______________ changes with the salinity of the surrounding seawater
a) osmoregulators, osmoconformers
b) osmoconformers, osmoregulators

How are water molecules bound to each other?
a) hydrogen bonds between water molecules
b) hydrogen - oxygen bonds in a single water molecules

How would Earth be different if water was a non polar molecule
a) Climate would be colder
b) Ice would not float, bodies of water would freeze solid
c) All of the answers listed
d) Ice would not act as an insulator for the water below

What is diffusion?
a) movement of molecules from area of high concentration to area of low concentration
b) movement of molecules from area of low concentration to area of high concentration

What is the average pH of sea water
a) 8
b) 4
c) 2
d) 11

What is hyper tonic?
a) more molecules of solute
b) less molecules of solute
c) same number of molecules as solute

What is osmosis
a) movement of water through a semipermeable membrane into an area of higher concentration of solute molecule
b) movement of water through a semipermeable membrane into an area of lower concentration of solute molecule
c) movement of water through a semipermeable membrane into an area of equal concentration of solute molecule

What is the name of our textbook
a) Life on an Ocean Planet
b) Life in the Water
c) Life in the Sea
d) Life of Pi

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