Final Exam Study Guide-Science 7th grade – Flashcards
61 test answers
Unlock all answers in this set
Unlock answers 61question
Skeletal System
answer
supports and protects the body, provides shape and support, enables you to move, protects your organs, produces blood cells, and stores minerals and other materials
Unlock the answer
question
Cartilage
answer
A connective tissue that is more flexible than bone and that protects ends of bones by keeping them fro rubbing together
Unlock the answer
question
Calcium
answer
a mineral that helps build bones and teeth, aids blood clotting and muscle and nerve function
Unlock the answer
question
Fracture
answer
a break in the bone
Unlock the answer
question
Sprain
answer
an injury in which the ligaments holding the bone together stretch too far and tear.
Unlock the answer
question
Dislocation
answer
an injury in which a bone comes out of its joint
Unlock the answer
question
Smooth Muscle
answer
involuntary muscle found inside many internal organs of the body; does not react or tire quickly
Unlock the answer
question
Striated Muscle
answer
a voluntary muscle that appears banded, also called skeletal muscle; reacts and tires quickly
Unlock the answer
question
Cardiac Muscle
answer
muscle tissue found only in the heart ; reacts quickly but does not tire quickly
Unlock the answer
question
Dermis
answer
the inner layer of the skin
Unlock the answer
question
Epidermis
answer
the outer layer of the skin
Unlock the answer
question
Minerals
answer
nutrients that are needed by the body in small amounts and are not made by living things
Unlock the answer
question
Fats
answer
energy containing nutrients that are composed of carbon and oxygen
Unlock the answer
question
Carbohydrate
answer
nutrient composed of carbon, oxygen, and hydrogen and is a major source of energy
Unlock the answer
question
Amino Acids
answer
small units that are linked together chemically to form large protein molecules
Unlock the answer
question
Proteins
answer
Nutrients that contain nitrogen as well as carbon, hydrogen, and oxygen. They are needed for tissue growth and repair and play a part in chemical reactions within cells
Unlock the answer
question
Saturated Fats
answer
Usually solid at room temperature, meat and dairy products contain relatively large amounts
Unlock the answer
question
Unsaturated Fats
answer
Usually liquid at room temperature, most cooking oils
Unlock the answer
question
Chemical Digestion
answer
chemicals produced by the body break food into their smaller chemical building blocks
Unlock the answer
question
Mechanical Digestion
answer
occurs when you bite into food and chew it into small pieces
Unlock the answer
question
Hyphae
answer
the branching, threadlike tubes that make up the bodys of multicellular fungi
Unlock the answer
question
Fungus
answer
eukaryotic organism that has cell walls, uses spores to reproduce, and is a heterotroph that feeds by absorbing its food
Unlock the answer
question
Symbiotic Relationship
answer
a close relationship between two organisms in which at least one of the organisms benefits
Unlock the answer
question
Budding
answer
a form of asexual reproduction of yeast in which a new cell grows out of the body of a parent
Unlock the answer
question
Autotroph
answer
an organism that makes its own food
Unlock the answer
question
Heterotroph
answer
an organism that cannot make its own food
Unlock the answer
question
Mold
answer
a fungi that lives in dark, humid/moist, warm air
Unlock the answer
question
Asexual Reproduction
answer
a reproductive process that involves only one parent and produces offspring that are identical to the parent
Unlock the answer
question
Yeast
answer
a unicellular cell that undergoes a form of asexual reproduction called budding; a fungi; optimum temperature for multiplying is 105-115 degrees Fahrenheit; yeast is used in wine, beer, and bread
Unlock the answer
question
Algal Bloom
answer
the rapid growth of a population of algae
Unlock the answer
question
Phloem
answer
the vascular tissue through which food moves down in some plants
Unlock the answer
question
Xylem
answer
the vascular tissue through which water and nutrients move up some plants
Unlock the answer
question
Cilia
answer
the hairlike projections on the outside of cells that move in a wavelike manner
Unlock the answer
question
Flagella
answer
the long whip like structures that help a cell to move
Unlock the answer
question
Eye Spot
answer
not a real eye it contains light sensitive pigments that help euglena recognize the direction of a light source
Unlock the answer
question
Pseudopods
answer
a false foot or temporary bulge of cytoplasm used for feeding and movement in some protozoans
Unlock the answer
question
Seed
answer
the plant structure that contains a young plant inside a protective covering
Unlock the answer
question
Angiosperms
answer
a flowering plant that produces seeds enclosed in a protective structure; fruit
Unlock the answer
question
Gymnosperms
answer
a plant that produces seeds that are not enclosed by a protective fruit
Unlock the answer
question
Monocot
answer
an angiosperm that has only one seed leaf; grasses
Unlock the answer
question
Germination
answer
the sprouting of the embryo out of the seed; occurs when the embryo resumes its growth
Unlock the answer
question
Fertilization
answer
the joining of a sperm cell and egg cell
Unlock the answer
question
Roots
answer
anchor a plant in the ground, absorb water and minerals from the soil and sometimes stores food
Unlock the answer
question
Sepal
answer
a leaf like structure that enclosed the bud of a flower
Unlock the answer
question
Pistol
answer
the female reproductive part of the flower
Unlock the answer
question
Stem
answer
stems carry substances between a plant's roots and leaves; also provides support for the plant and holds up the leaves so they are exposed to the sun
Unlock the answer
question
Hormones
answer
chemicals that affect growth and development
Unlock the answer
question
Stomata
answer
the small openings on the surface of most leaves through which gases can move
Unlock the answer
question
Annuals
answer
flowering plants that complete their life cycle in one growing season
Unlock the answer
question
Perennials
answer
flowering plants that live for more than two years
Unlock the answer
question
Egg
answer
female sex cell
Unlock the answer
question
Sperm
answer
male sex cell
Unlock the answer
question
Zygote
answer
fertilized egg produced by the joining of a sperm and an egg
Unlock the answer
question
Menstruation
answer
the process of which the thickened lining of the uterus breaks down and blood and tissue then pass out of the female body through the vagina
Unlock the answer
question
Placenta
answer
a membrane that becomes the link between the developing embryo, or fetus and the mother
Unlock the answer
question
Sugar
answer
simple carbohydrate in the form of glucose, produces energy, and plants and animals use it
Unlock the answer
question
Saliva
answer
the fluid released when the mouth waters that plays an important role in both mechanical and chemical digestion
Unlock the answer
