Cell structure and Function
What is an organelle?
An organelle is a tiny cell structure that carries out a specific function within the cell.
What is a gene?
Genes are hereditary units made up of DNA that control cell activities and may be passed on to the next generation.
Where do chemical processes of the organism take place?
The chemical processes of the organism take place inside the organism’s cells.
What is an element?
Is a substance made up entirely of one kind of atom.
How do elements combine to form compounds?
The formation of a chemical bond involves either the transfer of electrons from one atom to another or the sharing of electrons between atoms. They combine to form compounds through chemical bonding.
What is diffusion?
The process by which molecules move from an area of higher concentration of fluid to an area of lower concentration of fluid.
What are two types respiration?
Aerobic
Anaerobic
What is an atom?
Living things are composed of tiny units called atoms.
What is an element represented by? Give an example.
An element is represented by a symbol. C - Carbon
What are molecules?
The smallest particle of an element or compound capable of independent motion is a molecule.
What is active transport?
The moving of materials that requires cell energy.
The process in which cellular energy is used to move particles through a membrane.
What does a plant cell have that an animal cell does not?
Cell wall & Chloroplast
What are protons, neutrons, and electrons?
Protons have a positive charge and are found in the nucleus.
Neutrons have no charge and are found in the nucleus.
Elections have a negative charge and are found outside the nucleus.
How do elements differ from one another?
Elements differ for one another by the number of protons, neutrons, and electrons each element has.
What is an ion?
Elements combine to form compounds by a process called chemical bonding. The formation of a chemical bond involved either the transfer of electrons from one atom to another to the sharing of electrons between atoms.
What is osmosis?
The diffusion of water molecules across a selectively permeable membrane.
What are the two smallest parts in the levels of organization.
cell and tissue
What are energy levels?
Energy levels are the paths electrons move in called shells.
What is a compound?
A compound is formed when two or more elements combine chemically.
What is a covalent bond?
Is formed when when atoms produce compounds by sharing electrons.
What are chromosomes?
Chromosomes are long threadlike structures located in the nucleus of the cell.
what are the other three
organs, organ system, and organism
What types of charges do protons, neutrons, and electrons have?
Protons - Positive
Neutrons - Neutral
Electrons - Negative
What is chemical bonding?
Elements combine to form compounds by a process called chemical bonding.
What is the chemical formula for sugar?
C6 H12 O6