Chemistry
What is an atom?
An atom is the smallest unit of matter
What is Mitosis (simple definition)
The duplication of cells
What is the basic unit of life
The cell is the basic unit of life.
What is the atomic symbol for Aluminum
Al
Is lightning hotter than the sun
yes
How do ionic bonds form between atoms?
Ionic bonds form when one atom transfers electrons to another, creating positively charged ions (cations) and negatively charged ions (anions) that attract each other.
What is the difference between meiosis and mitosis
Meiosis produces 4 cells while mitosis only produces 2.
What role do enzymes play in biological reactions
Enzymes speed up (catalyze) biological reactions
What are the first 4 elements in the periodic table (THERE FULL NAMES)
Hydrogen, Helium, Lithium, Beryllium
What are the 4 DNA bases
A, T, C, G
What is the difference between an exothermic and endothermic reaction.
An exothermic reaction releases energy, usually as heat, to the surroundings. An endothermic reaction absorbs energy from the surroundings.
Why is mitosis essential
Mitosis is essential because it allows organisms to grow, repair damaged tissues, and replace old or dead cells
Light energy is captured by chlorophyll
What is the atomic symbol for Tungsten
W
Does sound move fast in warmer temperatures and why.
Sound is a vibration that moves through particles in a medium like air. When the air is warmer, the particles have more energy and move faster.
What are the products in a combustion reaction
CO2 (carbon dioxide) and H2O water
What are the main differences between plant cells and animal cells?
Plant cells have a cell wall for support
What is the role of RNA polymerase in transcription, and how does it recognize where to start copying a gene
RNA polymerase is the enzyme responsible for making RNA from a DNA template during transcription. It binds to a specific DNA sequence called the promoter, which signals where to start copying the gene. Once attached, RNA polymerase unwinds the DNA
What is the SubShell electron config for Phosphorus
1s^2, 2s^2, 2p^6, 3s^2, 3p^3
H2 + O2 = H2O Balance this equation
2H2 + O2 = 2H2O
What is oxidation and reduction and what reaction are they categorized in
Oxidation is the process where a substance loses electrons, and reduction is where a substance gains electrons. And it is both in the category of redox reaction
What does the cell membrane do
The cell membrane controls what enters and leaves the cell. It acts like a barrier that protects the cell and helps keep the right balance of substances inside by letting some things in or out while keeping others out.
Order these from smallest to biggest: Bacteria, Red Blood Cell, Virus, Width of a strand of hair
Virus, Bacteria, Red Blood Cell, Width of Hair strand
What happens to electronegativity as you go across a period and why?
As you move across a period, electronegativity increases because atoms gain more protons. This stronger nuclear attraction pulls electrons closer so the atomic size decreases.
what is the difference between transcription and translation
Transcription is the process where the DNA code is copied into messenger RNA
Translation is when the mRNA is used by ribosomes in the cytoplasm to build a protein