University UPDATED ACTUAL Exam
Questions and CORRECT Answers
metabolism - CORRECT ANSWER - the sum of all chemical reactions occurring an
organism
matter - CORRECT ANSWER - atoms and molecules (of which all body parts are made)
atoms - CORRECT ANSWER - smallest unit of an element that retain all of the
characteristics of that element
molecule - CORRECT ANSWER - group of two or more atoms bound together
heterotroph - CORRECT ANSWER - organisms that obtain energy from foods by
ingesting or absorbing them
autotroph - CORRECT ANSWER - organisms that produce their own food from smaller
molecules
photosynthesis - CORRECT ANSWER - use of sunlight by autotrophs in order to build
biological molecules
energy - CORRECT ANSWER - the ability to do work
work - CORRECT ANSWER - a change in an objects position or physical form
potential energy - CORRECT ANSWER - stored energy, found in food
, light-dependent reactions - CORRECT ANSWER - light reactions
light-independent reactions (Calvin cycle) - CORRECT ANSWER - dark reactions
thylakoid membranes - CORRECT ANSWER - "pancake" membranes in which
chlorophyll is held and sun energy is captured
photosystems I and II - CORRECT ANSWER - "lightning rod" areas in which sun energy
is easily absorbed by chlorophyll molecules and other pigments, each photosystem has a reactive
chlorophyll molecule at its center that receives energy absorbed by all surrounding pigment
molecules
RuBP - CORRECT ANSWER - 5-carbon ribulose-1, 5- diphosphate
carbon fixation - CORRECT ANSWER - binds carbon from the air into biological
molecules
carbohydrates - CORRECT ANSWER - macromolecules for energy production
monosaccharide - CORRECT ANSWER - what carbohydrates are composed of, simple
sugars
polysaccharide - CORRECT ANSWER - complex sugars that contain monosaccharide
subunits
proteins - CORRECT ANSWER - macromolecules for structure and function
amino acid - CORRECT ANSWER - the subunits of protein