Cell Structures
What are the three main parts of cell theory?
The three main parts of cell theory are: all living things are composed of cells, cells are the basic unit of life, and all cells come from pre-existing cells.
What is osmosis?
The movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules.
What is mutualism?
A type of symbiotic relationship where two or more species benefit from interacting with each other.
How does DNA relate to mitosis
Mitosis is the part of the division process where the DNA of the cell's nucleus is split into two equal sets of chromosomes.
Claim
Mitosis ensures that daughter cells inherit an identical copy of the parent cell's DNA.
What is the role of the mitochondria in a cell?
Responsible for producing the energy needed for cellular functions.
What are some examples of homeostasis in the human body?
Shivering when too cold or sweating when too hot.
Relationship where one organism benefits while the other is neither helped nor harmed.
Commensalism
What happens to the cell during the G1 stage?
The cell prepares for division.
Evidence
B
Before a cell divides through mitosis, it makes an exact copy of each of its chromosomes. These copies, called sister chromatids, are then separated during mitosis, ensuring that each new cell gets a complete, identical set of chromosomes. This process is crucial for growth, repair, and replacing old cells, as it ensures that each new cell has the same genetic information as the original.
What is the main difference between prokaryotic and eukaryotic cells?
Prokaryotic cells are simple when on the other hand eukaryotic cells are more complex.
How do solutes and solvents interact to form a solution?
The solute is the substance that is dissolved in a solvent and the solvent is the substance that dissolves a solute which forms a solution.
What are the main components of an ecosystem?
The main components of an ecosystem are biotic (living) and abiotic (non-living) factors.
What must DNA do before mitosis?
The cell must make two copies of its DNA
Evidence
Before a cell divides through mitosis, it makes an exact copy of each of its chromosomes. These copies, called sister chromatids, are then separated during mitosis, ensuring that each new cell gets a complete, identical set of chromosomes. This process is crucial for growth, repair, and replacing old cells, as it ensures that each new cell has the same genetic information as the original.
What are some examples of prokaryotic organisms?
Examples include bacteria, such as E. coli, and archaea
What refers to the movement of any substance from an area of high concentration to low concentration?
Diffusion
Why is biodiversity important?
Biodiversity is crucial for the health of ecosystems and ultimately, human survival.
During what phase does DNA make a copy of itself?
The Synthesis (S) phase
Reasoning
By carefully dividing the duplicated DNA, mitosis ensures each new cell gets an identical copy of the parent cell's DNA.
Which structures are unique to plant cells and not found in animal cells?
Plant cells have a cell wall, chloroplasts, and a large central vacuole. These are not found in animal cells.
What refers to the ratio of the solute (the dissolved substance) to the solvent (the liquid dissolving it)
Concentration
What is the difference between biotic and abiotic factors?
Biotic factors are the living things in an environment, like plants, animals, and fungi, while abiotic factors are the non-living things like sunlight, water, and soil.
Why is mitosis necessary for living organisms?
Mitosis is necessary for living organisms because it enables growth, repair, and asexual reproduction.
Reasoning
By carefully dividing the duplicated DNA, mitosis ensures each new cell gets an identical copy of the parent cell's DNA.