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72 Cards in this Set

  • Front
  • Back
A compound that contains carbon and usually is produced by living things.
Organic compound
An organic molecule used to deliver energy for life processes
The coordination of the internal activities of an organism
A molecule that carries unevenly distributed electrical charges
polar molecule
Large organic molecules composed of amino acids that either act as structural materials in an organism or regulate the chemical activities of an organism
A solution with a lower concentration of a dissolved substance than another solution
Organic Molecules composed of fatty acids and glycerol that store energy and make up cell membranes in living things
Large organic molecules composed of nucleotides that store the information for building proteins
nucleic acids
Organic Molecules composed of one or more monosachharides that are often used for energy
all of the chemical reactions of an organism
the removal of metabolic wastes
6co2 + 6H2O + Energy a C6H12O6 + 602 is?
C6H12O6 + 6O2 ( arrow ) energy + 6h20 + 6co2
The movement of materials into and out of cells against a concentration gradient, requiring the use of energy
Active transport
Part of an animal or plant that performs a special function
A green pigment in plants an essential ingredient for photosynthesis
slitlike openings located mainly on the underside of a leaf
the channels through which materials move in a leaf. They alsohelp strengthen the leaf
the pattern of light absorption
absorption spectrum
The kidney-shaped cells found on the either side of each stoma on a plant leaf. They control the passage of gases into and out of the plant by causing the sotmata to open and close
guard cells
the material that gives substances their color by absorbing some colors of light and refleting others
the flattened part of a leaf. ( its green )
the stored form of the food produced by plants in photosynthesis
the stalk that fastens a leaf to the stem of a plant.
The process by which green plants make food
a hair like extension of the epidermal or outer cells of a root that helps a plant obtain moisture from the soil
root hair
a phenomenon caused by the higher concentration of water around the root hairs than inside the root hairs. the osmosis of water into the root hairs forces whater upward through the plant
root pressure
a solution with a higher concentration of a dissolved substance than another solution.
A soltuion with a lower concentration of a dissolved substance than another solution
a solution with the same concentration of a dissolved substance as another solution
A strong, attractive force that one particle of a substance has for another particle of the same substance
Describes a substance or surface that allows other substances to pass through
describes a substance or surface that allows some substances to pass through while preventing others from doing so
simi permeable
describes a substnace or surface that prevents other substances from passing through it.
the amount of heat that a substnace can absorb without increasing in temperature
heat capasity
The climbing of a liquid in a narrow tube due to attractive forces between particles
capillary action
the diffusion of a fluid through semi permeable membranes
the force of attraction between unlike particles
the process by which a gas changes to a liquid
the process by which a liquid becomes a gas
the process by which water vapor is given off through the stomata of leaves
the uinform mixing of the particles of one substance with those of another substance cuased by the motion of both types of particles
Without Sun there would be no food?
True! without the sun photosynthesis couldn't happen! plants make food from carbon dioxide and water, combined with energy to make food and give off oxygen. If the sun was gone none of this could happen, and there would be no food.
how does diffusion work?
diffusion is when a substance of a disolved substance goes from a higher concentration to a lower conventration.
What is the difference between osmosis and diffusion
The difference between osmosis and diffusion is the mixing of the particles of one substance with another and osmosis is diffusion of a fluid through semi permeable membrane.
Using osmosis why should u not put tap water in a group of blood cells that you want to observe under a microscope?
Becuase the water would move into the cells because of there lower concentration, and you would not see the same thing as you would with it in salt water.
Why does putting salt, or fertilizer, too close to a plant kill the plant?
Becuase the water in the plant moves out of the plant into a lower concentrated area then the plant has no more water and dies.
Smalles piece of an element
Substance made up of 2 or more element that are chemically combined
positively charged particles in the nucleus of an atom
substance made up of onloy one kind of atom
elewhere the electrons are located according to their energy level
electron configuration
when one atom looses electrons to become positively charged and another atom gains electrons to become negatively charged, the two atoms sick together becuase opposites attract
ionic bonding
smallest pieces of a compound made up of 2 or more atoms " glued" together by electrons
atoms share electrons to fill up their outer electron levels
covalent bonding
Negatively charged particle in an atom
Particles in the nucleaus of an atom with no electrical charge
the process by which an organism breaks down food into substances that can be used by individual cells
sugar your body uses for respiration
the process in which organisms combine oxygen from air or water with digested food in order to release chemical energy for use by their cells
opening in the skin
the chemical substance released into the blood by the pancreas that enables the body to use sugar as a fuel in the process of respiration
the gland between the stomach and small intestine that enables the body to use sugar as a fuel in the process of respiration by releasing insulin into the blood
controlls how quickly food burns in cells
thyroid gland
diffusions from the thyroid gland into the blood and carries it to other cells.
the body's internal transportation system that carries materials to and from the cells includes the heart blood vessels and blood
circulatory systemnd bl
the organs associated with the intake digestion and absorption of food
digestive system
the organs associated with collecting and elminiating metabolic wastes
excretory system
the network of structures including the brain and spinal cord that control the actions and reactions fo the body
nervous system
the system of organs and air passages that accomplish t he exchange of oxygen and carbon dioxide between the body of an organism and its surroundings
respiratory system
any organic material such as a plant or animal wastes that can be used as an energy source
an abnormal condition in plants and animals in which some or all natural pigments are absent