Science Drills Flashcards
the outer lining of the cell inside the cell wall.
Cell membrane or the plasma membrane
the outermost rigid covering of the plant cell. It is a salient feature of plant cell.
cell wall
the gel-like matrix inside the cell membrane which constitutes all other cell organelles.
Cytosol or cytoplasm
control center of the cell. It is a membrane bound structure which contains the hereditary material of the cell - the DNA
nucleus
plastid with green pigment chlorophyll. It traps light energy and converts it to chemical energy by the process of photosynthesis.
Chloroplast
carries out cellular respiration and provides energy to the cells.
Mitochondria
temporary storage center of the cell.
Vacuoles
the unit where proteins are sorted and packed.
Golgi body
structures that assemble proteins.
Ribosomes
are membrane covered organelles that transport materials.
Endoplasmic reticulum
- Forms the external body covering
- Composed of the skin, sweat glands, oil glands, hair, and nails
- Protects deep tissues from injury and synthesizes vitamin D
Integumentary System
- Composed of bone, cartilage, and ligaments
- Protects and supports body organs
- Provides the framework for muscles
- Site of blood cell formation
- Stores minerals
Skeletal System
- Composed of muscles and tendons
- Allows manipulation of the environment, locomotion, and facial expression
- Maintains posture
- Produces heat
Muscular System
- Composed of the brain, spinal column, and nerves
- Is the fast-acting control system of the body
- Responds to stimuli by activating muscles and glands
Nervous System
Composed of the heart and blood vessels
* The heart pumps blood
* The blood vessels transport blood throughout the body
Cardiovascular System
- Composed of red bone marrow, thymus, spleen, lymph nodes, and lymphatic vessels
- Picks up fluid leaked from blood vessels and returns it to blood
- Disposes of debris in the lymphatic stream
- Houses white blood cells involved with immunity
Lymphatic System
Composed of the nasal cavity, pharynx, trachea, bronchi, and lungs
Respiratory System
Composed of the oral cavity, esophagus, stomach, small intestine, large intestine, rectum, anus, and liver
DIgestive System
Composed of kidneys, ureters, urinary bladder, and urethra
Urinary System
Largest circular storm in our solar system is found in
Jupiter
The rapidly moving stream of charged particles that is being driven away from the sun is known as
Solar Wind
Biggest known asteroid
Ceres
One Mercurian year is equal to
88 earth days
Largest volcano in the solar system is Olympus Mons found on
Mars
