Life Science | Ch. 3 Test Question Preview (ID: 39617)


Study Guide.

a group of atoms held togehter by the energy of chemical bonds
a) atom
b) electron
c) molecule
d) compound

negatively chared paticle moving around outside a nucleus
a) proton
b) electron
c) neutron
d) mayonaise

2 or more substances dissolved evenly throughout another substance
a) solution
b) compound
c) ionic compound
d) molecular compound

a molecule has a MINIMUM of three atoms
a) True
b) False
c)
d)

an electrically charged atom that has lost or gained an electron
a) ion
b) proton
c) neutron
d) nucleus

inorganic compounds contain carbon and hydrogen molecules
a) True
b) False
c)
d)

Passive transport uses no energy
a) True
b) False
c)
d)

Facilitated Trasport uses energy
a) True
b) False
c)
d)

Carbon dioxide is waste
a) respiration
b) photosynthesis
c)
d)

occurs in mitochondria
a) respiration
b) photosynthesis
c)
d)

uses chlorophyll
a) respiration
b) photosynthesis
c)
d)

makes glucose from CO2
a) respiration
b) photosynthesis
c)
d)

Organic compounds are compounds that always contain ___________.
a) carbon
b) calcium
c) nitrogen
d) oxygen

An atom's nucleus contains__________.
a) neutrons only
b) protons and electrons
c) neutrons, protons, and electrons
d) protons and neutrons

the function of the selectively permeable cell________is to allow somethings to pass through it, but not others
a) cytoplasm
b) membrane
c) nucleus
d) wall

Producers use light energy to make_______
a) chlorophyll
b) glucose
c) proteins
d) starch

In a(n) _________________, substances mix evenly with other substances
a) inorganic compound
b) organic compound
c) solution
d) suspension

___________ are organic compounds made of sugars or starches
a) carbohydrates
b) enzymes
c) lipids
d) nucleic acids

__________ are organisms that can't make food
a) plants
b) enzymes
c) consumers
d) produces

_________ are organic compounds that store energy
a) Enzymes
b) lipids
c) nucleic acids
d) proteins

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