Biology
name three parts of a cell.
nucleolus
mitochondria
rough endoplasmic reticulum
smooth endoplasmic reticulum
centrosomes
lysosomes
ribosomes
Golgi complex
cell membrane
nuclear envelope
cytoskeleton.
Classify the following three thing that I’m going to say into (E) element (C) compound or (M) mixture: Milk, Uranium and Dry ice.
Milk (M), Uranium (E) and Dry ice (C)
Definition of luminous and an example.
Something that can produce his out light
What does latitude mean?
A measure of distance from the equator
Name all the phases of mitosis.
Interphase, Prophase, Metaphase, Anaphase, Telophase, Interphase
What’s the principal difference between a cation and a anion?
Cation has a positive charge, loose electrons, anion has a negative charge, gains electrons
How is triboluminescence light produced?
When certain crystals are scratched.
What is climate?
Average weather
Difference between animal cell and plants cell? Name 2 things that one have that the other one don’t have.
Plants cells have a cell wall, chloroplast and vacuoles and animal cell have energy storage, centrosome and lysosomes.
Write the atomic number, the atomic mass, the neutrons and the electrons of these three elements in 1 minute and 30 seconds: Rh, Xe Fr.
Rh, 45, 102, 57, 45
Xe, 54, 131, 77, 54
Fr, 87, 223, 136, 87
What does LED mean?
Light-emitting diode
Name two ways to control the climate?
Latitude, ocean currents, elevation, nearby water, topography, vegetation, prevailing winds
What causes a genetic mutation?
Errors in DNA replication during cell division, exposure to substances in the environment that damage DNA, viral infections
Name this two ionic compounds: Na2O, Al2S3.
Na2O=sodium oxide, Al2S3 =aluminum sulfide
What are the two types of reflections?
Specular and Diffuse
What make’s ecoregion differentiated by their biodiversity?
Animals, plants, landforms and climate
What is cytoplasm and what is it for ?
Cytoplasm is the gelatinous liquid that fills the inside of a cell and holds the components of the cell and protects them from damage.
Write this ionic compounds: potassium fluoride, calcium bromide.
Potassium fluoride=KF, calcium bromide=CaBr2
What’s the name of the angle between the reflected ray and the normal?
Angle of reflection
What 5 zones are used in the climate classification?
Tropical, dry, moderate, continental and pola