Populations
What happens to a population when the birth rates are equal to the death rates?
It remains the same.
The organelles that is the powerhouse of the cell
What is mitochondria
the function of carbohydrates
What is Provides quick energy for the body
Give an example of a biotic and abiotic factor.
What is Biotic = living (e.g., tree, fish), Abiotic = non-living (e.g., water, sunlight, temperature)
Mitosis is known for this type or reproduction?
Asexual reproduction. Has only one parent.
What is the equation for photosynthesis?
6CO₂ + 6H₂O + Light → C₆H₁₂O₆ + 6O₂ (Carbon dioxide + Water + Light energy → Glucose + Oxygen)
Why is water considered a polar molecule?
Because Oxygen has a negative charge and hydrogen has a positive charge.
A graph showing population numbers rising sharply is describing this type of population growth.
Exponential growth
The difference between prokaryotic and eukaryotic cells
What is Prokaryotic cells (bacteria) have no nucleus or membrane-bound organelles; eukaryotic cells (plants, animals) do.
The 4 macromolecules
Carbohydrates, Lipids, Proteins, Nucleic Acids
The difference between a food chain and a food web
What is A food chain shows one pathway of energy flow; a food web shows multiple interconnected food chains.
In what phase is a cell starting to replicate its DNA in preparation for cell division?
In the S Phase.
How do plants get their energy?
They use light energy from the Sun to perform photosynthesis and produce glucose.
The ability of water to "stick" to other surfaces is called.
Adhesion
This is reached in a population when there are only enough resources to support and sustain a certain number of individuals in a population causing it to remain the same in size.
Carrying capacity
Part of the cell controls what enters and leaves
What is The cell membrane
What does an enzyme do?
Speeds up chemical reactions by lowering activation energy.
How does the carbon cycle help sustain life on Earth?
What is It cycles carbon between the atmosphere, plants, animals, and decomposers, allowing organisms to produce energy and grow.
What is the name of the phase of Mitosis in which you have TWO distinct nuclei?
Telophase
What are the reactants (left side of the equation) in photosynthesis and what are the products (right side of the equation) in cellular respiration?
The reactants of photosynthesis (carbon dioxide & water) are some of the products in cellular respiration.
The ability of water to stick to other water molecules because of polarity is.
Cohesion
These two events cause a population to decline over time.
Death rate and emigration.
The difference between passive and active transport
What is passive transport moves molecules without energy (diffusion, osmosis); active transport requires energy (ATP) to move molecules against a gradient.
Match the corresponding macromolecules to these foods. Pasta, oil, chicken.
Carbohydrates, lipids, proteins.
What happens if a keystone species is removed from an ecosystem?
The ecosystem becomes unbalanced, possibly leading to overpopulation of some species and extinction of others.
The difference between mitosis and meiosis
Mitosis = two identical cells for growth/repair; Meiosis = four unique gametes (sperm/egg) for reproduction.
What are the differences between anaerobic respiration and aerobic respiration?
One needs oxygen and the other does not require oxygen.
The process is which water travels from an are of high concentration to an area of low concentration is called.
Osmosis
What happens to a population when there are plenty of resources (water / food / shelter) in a given area?
The population increases.
The three types of passive transport, and how they work
The monomer of proteins, and why it is important?
What is Amino acids; they build proteins for muscle, enzymes, and cellular functions.
The difference between primary and secondary succession
Primary succession occurs in areas with no prior life (bare rock); secondary succession happens after a disturbance (fire, flood, human activity).
In which phase does crossing over happen in Meiosis?
Prophase 1
ATP (Adenosine triphosphate) is a molecule that stores energy within a cell. For what purpose specifically will that cell use ATP?
ATP (adenosine triphosphate) is the main energy molecule used for cellular processes such as active transport, muscle contractions, and chemical reactions.
Process which allows water to move into tight spaces defying gravity. It is possible because of its adhesive and cohesive properties.
Capillary Action