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Science Final Study Guide
Terms in this set (65)
What are the building blocks of life
An organism is made up of
one or more cells
a living thing; anything that can carry out life processes independently
in biology, the smallest unit that can perform all life processes; cells are covered by a membrane and contain DNA and cytoplasm
What is the difference between an unicellular and multicellular organism
unicellular organisms are only made up of one cell
Finish the sentence Cells can only be produced by...
The process in which cells create more cells
one of the small bodies that are found in the cytoplasm of a cell and that are specialized to perform a specific function
A barrier in both an animal and plant cell that controls what goes in and out of the cell
Prokaryotic cells lack what
A nucleus and membrane-bound organelles (unicellular)
Control center of the cell
Cell Wall def.
Ridged outer layer of a plant cell
Gel-like fluid where organelles are found
Produces the energy a cell needs to carry out its functions
Uses chemicals to break down food and worn out cell parts
It stores food, water, and other materials
Golgi Apparatus Def.
It receives proteins & materials from the ER, packages them & distributes them
It captures energy from the sunlight and uses it to produces energy and food in plant cells
Endoplasmic Reticulum Def.
Has passageways that carries proteins and other materials from one part of the cell to another
Assembles amino acids to create proteins
Makes ribosomes found inside the nucleus
a group of similar cells that perform a common function
a collection of tissues that carry out a specialized function of the body
a group of organs that work together to perform body functions
delivers nutrients and oxygen to all cells in the body. It carries carbon dioxide and other waste products away from cells.
takes in oxygen and releases carbon dioxide as we breathe.
moves bones, causes the heart to beat, and moves food through the digestive system.
supports the body, protects organs, allows movement, and makes blood cells.
controls body movement and controls communication between the brain and the environment.
breaks down food into essential nutrients and expels solid waste from the body.
removes liquid wastes from the body.
a genetically determined characteristic
a genetic factor that blocks another genetic factor
a genetic factor that is blocked by the presence of a dominant factor
A complex molecule containing the genetic information that makes up the chromosomes.
an eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA
one set of instructions for an inherited trait
one of the alternative forms of a gene that governs a characteristic, such as hair color
a molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body
the process by which a characteristic is passed from parent to offspring
Energy used in cellular functions is produced in every cell
Where does Respiration take place
mitochondria and cytoplasm
chemical formula for glucose, sugar
What is the formula for photosynthesis?
6CO2 + 6H2O + ATP ------> C6H12O6 + 6O2
What is the formula for cellular respiration?
C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP
Movement of molecules from an area of higher concentration to an area of lower concentration.
Diffusion of water through a selectively permeable membrane
the movement of materials through a cell membrane using energy
the movement of substances across a cell membrane without the use of energy by the cell
A type of tissue that supports and binds other tissues
A body tissue that carries electrical messages back and forth between the brain and every other part of the body.
covers body surfaces and lines body cavities organs, protection
Used for locomotion, food movement in the gut, and heat production
Finish the sentence Cells are the...
building blocks of life
Passing of traits from parents to offspring
genetic makeup of an organism
An organism's physical appearance, or visible traits.
Both alleles (factors) for a trait are the same and dominant (AA)
Both alleles (factors) for a trait are the same and recessive (aa)
An organism that has two different alleles for a trait
What was Mendel's experiment?
he used pea plants and did not allow them to self-pollinate. instead, he paired one plant from each set by fertilized them with the pollen of another plant.
What was Mendel's conclusion?
The inheritance of each trait is determined by factors (genes) that are passed on to descendants unchanged
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