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6th Grade 1st Quarter Exam
6th Grade 1st Quarter Exam
47
Science
6th Grade
10/04/2014

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Term
holds the cell together and lets substances pass in and out of the cell
Definition
cell membrane
Term
found in plant cells and some protists but not in animal cells. It is stiff and gives a rigid shape to the cell.
Definition
cell wall
Term
are organelles in some plant and protist cells. They contain chlorophyll, a substance that enables plants to store solar energy
Definition
chloroplasts
Term
are structures inside the nucleus that are made up of genes. Genes carry the code for all the cell's traits and its activities.
Definition
chromosomes
Term
the watery gel inside the cell
Definition
cytoplasm
Term
organelles in which energy is released from food
Definition
mitochondria
Term
allows substances to pass in and out of the nucleus
Definition
nuclear membrane
Term
controls cell activities
Definition
nucleus
Term
spaces in the cytoplasm where food and chemicals are stored.
Definition
vacuoles
Term
the tendency of substances to move from an area of greater concentration to an area of lesser concentration
Definition
diffusion
Term
the diffusion of water through a membrane
Definition
osmosis
Term
the process by which green plants and other producers use light energy to make food
Definition
photosynthesis
Term
the process in cells in which oxygen is used to release stored energy by breaking down sugar molecules
Definition
cell respiration
Term
a chemical change in which an organism breaks down sugar to produce carbon dioxide and alcohol or lactic acid
Definition
fermentation
Term
the development of cells into different and specialized cell types
Definition
cell differentiation
Term
a group of organs that work together to perform one or more functions
Definition
organ system
Term
a group of similar, specialized cells working together to carry out the same function
Definition
tissue
Term
any of various plantlike protists
Definition
algae
Term
a microscopic one-celled alga with a glasslike cell wall
Definition
diatom
Term
a kind of alcohol used to make medicines, food products, and various other items
Definition
ethanol
Term
Canned mushrooms, mold growing on old bread, and packets of yeast used for baking are all types of ________.
Definition
fungi
Term
made up of more than one cell.
Definition
multicellular
Term
organisms, generally microscopic in size, that float or drift in the ocean
Definition
plankton
Term
any of a large group of mostly single celled microscopic organisms
Definition
protist
Term
protists that have animal like traits
Definition
protozoan
Term
an organism that lives on dead or decaying matter
Definition
saprophyte
Term
a reproductive cell that can develop into a new organism
Definition
spore
Term
a large group of organisms that feed on dead organisms or that are parasitic
Definition
fungus
Term
a protien produced in the blood that destroys or weakens bacteria and other pathogens
Definition
antibody
Term
a substance, produced by microbes or fungi, that can destroy bacteria or stop their growth
Definition
antibiotic
Term
monerans that feed on dead organic matter or on living things
Definition
bacteria
Term
monerans that contain chlorophyll
Definition
blue-green bacteria
Term
a disease that can be passed from one individual to another
Definition
communicable disease
Term
a method of asexual reproduction in which a parent cell divides to form two new cells
Definition
fussion
Term
the body's system that defends the body against pathogens
Definition
immune system
Term
any of mostly one celled organisms in which the cell does not have a nucleus
Definition
moneran
Term
a relationship between two organisms in which at least one organism benefits
Definition
symbiosis
Term
a poison produced by an organism
Definition
toxin
Term
a preperation of dead or weakened bacteria or viruses that produces immunity to a disease
Definition
vaccine
Term
a tiny disease causing life form consisting of genetic material wrapped inside a capsule of protein
Definition
virus
Term
a part of a multicellular organism madeup of a group of tissues that work together to perform a certain function.
Definition
organ
Term
a theory that states that cells are the basic units of structure and function of all living things.
Definition
cell theory
Term
________ are the basic units of all living things.
Definition
cells
Term
________ and ________ cells are not identical.
Definition
Plant, animal
Term
All cells are bounded by a ___________ and contain cytoplasm.
Definition
cell membrane
Term
All ________ must carry out similar life processes.
Definition
living things
Term
Van Leeudwenhoek is the first to see __________ organisms, which he calls "wee beasties" in 1674.
Definition
one-celled
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