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Science Test Exam Semester 1
Flash Cards to study for a science exam dealing with cells, specialized cells, kinetic/potenial energy, energy transformations, and waves/energy waves. Hope this helps :D
30
Science
7th Grade
01/20/2011

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Cards

Term
Cell Wall
Definition
Controls the turgity, gives structure, and only in plant cells
Term
Cell Membrane
Definition
Has the proteins, allows materials to pass, and protects the cell.
Term
Chloroplast
Definition
Does the photosynthesis, food for the cells, and cholorphil.
Term
Vacuole
Definition
Stores the food and waste products, is bigger in plant cells, and storage of the cell.
Term
Endoplasmic Reticulum
Definition
Cells transport system, transporter of materials, such as ribosomes, and is found around the nucleus.
Term
Nucleus
Definition
The "brain" of the cell, controlls cell, and holds genetic material.
Term
Nucleolus
Definition
Manufactors the cells and creates the ribosomes.
Term
Ribosome
Definition
Gives proteins to the cells, and is scattered around the Rough Endoplasmic Reticulum.
Term
Cytoplasm
Definition
Where the growth takes place, gel-like fluid, and up-center.
Term
Golgi Body/Apparatus
Definition
Sorts out the molecules of the cell.
Term
Lysosome
Definition
Removes indigestive materials, and breaks down the food.
Term
Mitochondrion
Definition
Controls the level of water, produces energy, and is the power house.
Term
Leaf Cells
Definition
Produces plant's sugar, allows oxygen to go in and out, tubes in the air, and photosynthesis occurs.
Term
Stem Cells
Definition
They are found in many different human bodies, the cells are undifferent multiponent prearsor cells, and transports water and nutrients.
Term
Root Cells
Definition
Stores the food, water, and materials, and transports water and the materials up the stem.
Term
Root Hair Cells
Definition
Absorbs water and minerals.
Term
White Blood cells
Definition
Protects the body, there are 5 different types, and there are not many white blood cells.
Term
Red Blood Cells
Definition
In an adult, more than a million are produced a second, transports oxygen, carries carbon dioxide as well as oxygen, and develops in bone marrow.
Term
Muscle Cells
Definition
Absorbs movement, 3 different types, controlls digestive system, and can contract.
Term
Nerve Cells
Definition
Your funny bone is really a system of nerve cells. That is why you sometimes have a muscle spasm. There are at lease 5 types of bone cells, and they are made out of organs.
Term
Bone Cells
Definition
Produced chemicals that strengthen bones, there are at least 5 types of bone cells, and are made out of organs.
Term
Why is it importent to have specialized cells?
Definition
They perform different functions.They help your body do all the functions. They often organize into tissues, organs, and organ system.
Term
What is the different between unicellular organism and mulitcellular organism? How do they survive?
Definition
Unicelluluar are made up of only 1 cell and multicellular are made up of many cells.
Term
Describe what happens to the potential and kinetc energy of a 500 N object as it falls a height of 2 meters?
Definition
When kinetic energy increases, then potential decreases. When potential increases, the kinetic decreases. Kinetic and Potential energy cannot be at the same greatest point at the same time but they can have the same point, not the highest.
Term
Examples of Energy Transformations
Definition
Mechanical: Arm Pulley
Electrical: Computer
Nuclear: Nuclear Plant
Heat: Oven
Light: Light bulb
Chemical: Acid
Sound: DVD player
Solar: Panels
Term
Energy Transformations Devices
Definition
Toaster: Electrical-mechanical-thermal
Television: Electrial-sound-light
Telephone: Mechanical-electrical-sound
Car: Chemical-Thermal-Mechanical
Flashlight: Chemical-Mechanical-light
Term
A sound wave is a ______________ wave.
Definition
Longitudianal
Term
A light wave is a __________________ wave.
Definition
Transverse
Term
A water wave is a ___________________ wave.
Definition
Transverse
Term
An earthquake is a __________________ waves.
Definition
Seismic, P-waves, and S-waves
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