Grade 9
Science
Science
What's found in the nucleus of an atom?
Protons and Neutrons.
What is the main difference between Prokaryotic and Eukaryotic cells?
Prokaryotic cells lack membrane-bound organelles.
How mant significant figures are there in 0.0004568389
7
6.022 x 10-23
What does DNA stand for?
Deoxyribonucleic Acid
What is the difference between a Meteor and a Meteorite?
Meteorites hit the ground, while Meteors burn in the atmosphere and turn into Meteorites.
Which group on the periodic table has elements with full valence shells?
Noble Gases
What is the acceleration due to gravity?
9.8 m/s2
Explain the trend of Atomic Radii on the periodic table.
Atomic Radii increases down a group and decreases down a period.
Which scientist discovered 13 different species of finches in the Galapagos islands?
Charles Darwin
How many atoms are there in Ca(NO3)2
9 atoms
The production of light by living things is called...
Bioluminescence
What is the specific heat capacity of water in J/kg?
4180 J/kg
Name 3 factors that affect solubility.
Temperature, Polarity, Pressure, Size, Agitation
A _________ group is responsible for making the head of a phospholipid hydrophilic.
Phosphate Group
What is the equation for photosynthesis?
6CO2 + 6H20 -------> C6H12O6 + 6O2
light
The large vessels that carry blood away from the heart are called...
Arteries
State the equivalent direction for the following:
[S52°E]
[N63°W]
[E38°S]
[W27°N]
Provide the full electron configuration and the orbital diagram for the sulfur ion (S2-).
S2- = 18 electrons
1s2 2s2 2p6 3s2 3p6
Translate this DNA sequence into RNA:
TAC CGC ATT TAT GCG CGA TTA AAT GCT ACT
AUG GCG UAA AUA CGC GCU AAU UUA CGA UGA
What are the 5 types of chemical reactions?
Synthesis rxn, Decomposition rxn, Single-Displacement rxn, Double-displacement rxn, and Combustion rxn.
What are the 4 stages of mitosis in order?
Prophase, Metaphase, Anaphase, Telophase.
Does sound travel faster through a solid or a gas, and why?
Sound travels faster through solids, as the molecules in the solid are closely packed together. Due to this, they are able to transmit vibrations (energy) faster.
When 1.02 g of steric acid, C18H36O2, has burned completely in a bomb calorimeter, the temperature of the calorimeter rose by 4.26 °C. The heat capacity of the calorimeter was 9.43 kJ/°C. Calculate the total heat of combustion of steric acid in kJ/mol.
Around 11206 kJ/mol.
What effect does proton motive force have on the production of ATP in the Electron Transport Chain (Cellular Respiration)
Keywords: H+, ATP synthase, Exergonic rxn, Phosphorylation
Proton motive force allows for the H+'s to travel through the ATP synthase at a fast and steady rate, creating an exergonic reaction which then supplies the energy needed for the phosphorylation of ADP into ATP.