Studied by 1 person
proposed scientific explanation for a set of observations hypothesis
hypothesis
numbers, obtained by counting or measuring
quantitative data
description that involves characteristics that can’t be measured (short/tall, color big/small)
qualitative data
steps or procedures scientists use to learn about the natural world
scientific method
a state of balance among all the body systems needed to survive and function correctly
homeostasis
smallest unit of organism considered alive
cell
2 cells from different parent unite to form new, unique cell
sexual reproduction
1 parent cell makes offspring identical to itself
asexual reproduction
organisms can be unicellular or multicellular
made of cells
DNA is tested in a crime scene evidence to determine the source of the blood
based on universal genetic code
blood cells are differentiated from muscles cells
grow and develop
sarah ate three cheeseburgers for lunch
obtain and use energy
plants react to the sun by growing toward the light
respond to environment/stimulus
a person gets goosebumps in a cold theater
maintain a stable internal environment
a frog releases sperm onto a clump of female eggs to produce 500 tadpoles
reproduce
size of horses changed over millions of years
populations evolve
manipulated variable, changed by experimenter
independent variable
responding variable, is observed and changes in response to the experiment
dependent variable
dependent variable is on the x/y axis?
y axis
independent variable is on the x/y axis?
x axis
A. compound light microscopes B. electron microscopes
light pases through 2 lenses to create image, mag. up to 2000x
A.
A. compound light microscopes B. electron microscopes
uses beams of electrons to view images, mag up to 50millionx
B.
A. compound light microscopes B. electron microscopes
can study both dead and alive organisms
A.
A. compound light microscopes B. electron microscopes
views objects smaller than 0.2 micrometers
B.
A. compound light microscopes B. electron microscopes
specimens must be dead
B.
A. compound light microscopes B. electron microscopes
A.
A. compound light microscopes B. electron microscopes
B.
A. compound light microscopes B. electron microscopes
small, less expensive, protable
A.
A. compound light microscopes B. electron microscopes
large, expensive, not protable
B.
1?
body tube
2?
revolving nose piece
3?
low power objective
4?
medium power objective
5?
high power objective
6?
stage clips
7?
diaphragm
8?
light source
9?
ocular lense
10?
arm
11?
stage
12?
coarse adjustment knob
13?
fine adjustment kob
14?
base
nuclei are unstable and break down overtime and give off radiation
isotope
number of protons in nucleus of an atom
atomic number
total number of protons and neutrons in a nucleus
mass number
molecule that gained or lost 1+ electron(s)
ion
properties of compounds different from elements
emergent properties
chemical bond formed when one atom gives up one or more electrons to another atom
ionic bond
chemical bond when electrons are shared by atoms
covalent bond
covalent bond when electron is shared unevenly due to difference in electronegativity
polar
an atom having four covalent bonds b/c of 4 valence electrons
tetravalent
A. lipid B. nucleic acid C. protein D. carbohydrate
main energy source; plants and some animals use for structure
D.
A. lipid B. nucleic acid C. protein D. carbohydrate
found in food such as starches, fiber, and sugar
D.
A. lipid B. nucleic acid C. protein D. carbohydrate
what molecule is this?
D.
A. lipid B. nucleic acid C. protein D. carbohydrate
functions include storing energy, forming membranes, waterproof coverings
A.
A. lipid B. nucleic acid C. protein D. carbohydrate
fats, oils, wax
A.
A. lipid B. nucleic acid C. protein D. carbohydrate
what molecule is this?
A.
A. lipid B. nucleic acid C. protein D. carbohydrate
functions include, contain genetic or hereditary info, instructions for making proteins
B.
A. lipid B. nucleic acid C. protein D. carbohydrate
what molecule is this?
B.
A. lipid B. nucleic acid C. protein D. carbohydrate
functions include, controlling rate of reactions and cell processes, form bones and muscles, transport substances in and out of cells, fight diseases
C.
A. lipid B. nucleic acid C. protein D. carbohydrate
has 4 structures
C .
A. lipid B. nucleic acid C. protein D. carbohydrate
what molecule is this?
c.
T/F: cohesion is the attraction between water molecules and different substances?
F
T/F: cohesion is attraction between molecules of same substance
T
T/F: adhesion is attraction between molecules of same substance
F
T/F: adhesion is the attraction between water molecules and different substances?
T
ice floats because it has a higher/lower density than water
lower
T/F: it takes a lot of energy to break hydrogen bonds in water
T
contains ribosomes and makes proteins to be exported by the cell
rough ER
small, dense core of nucleus, makes ribosomes
nucleolus
makes proteins, made of RNA, found in cytoplasm/rough ER
ribosome
capture energy from sunlight and convert it into food, carry out photosynthesis, found in plant and algae ONLY
chloroplast
modifies, sorts, and packages molecules, stack of membranes
golgi apparatus
helps cell maintain shape, form flexible framework, make cilia and flagella
cytoskeleton
convert chemical energy (food) into energy that can be used by the cell (ATP), made of 2 membranes
mitochondria
1?
cell wall
2?
cytoplasm
3?
nuclear envlope
5?
nucleolus
6?
chromatin
7?
vacule
8?
ribosome
9?
rough ER
10?
lysosome
11?
mitochondria
12?
smooth ER
13?
golgi apparatus
A?
phosopholipid
F?
peripheral protein
G?
integral protein
C?
glycoprotein
B?
glycolipid
E?
cholesterol
D?
carbohydrate
found on inside of membrane, connecting points for cytoskeleton, help to transmit signals from outside cell
peripheral protein
pass all the way through the membrane, serves as transmet channels or pumps
integral protein
acts as a waterproof barrier to protect the cell, hydrophilic head, hydrophobic tail, main component of the bilayer
phospholipid
attach to proteins
glycoprotein
attach to phospholipids
glycolipids
Note
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