Characteristics of Life & Cells
Identify the organelle that controls cell activity.
Nucleus
Which transport (active or passive) moves molecules across the membrane from high to low concentration without the use of ATP?
Passive Transport
Define homeostasis.
Maintaining a stable internal environment even when the external environment changes.
A reaction to a usually harmless substance (ex. cat hair) is known as a?
Allergy
Cloning is an example of sexual or asexual reproduction?
Asexual Reproduction
Identify the life function that combines smaller molecules to make a larger molecule.
Synthesis
What molecule speeds up chemical reactions?
Enzyme or Catalyst
Identify the hormone that is responsible in lowering blood glucose levels back to the set point.
Insulin
Identify the process that can cause bacteria to become resistant to antibiotics?
Mutation
Where are gametes and hormones produced in a male and female?
Testes and Ovaries
Identify the difference between a prokaryotic cell and eukaryotic cell.
Prokaryotic cells (bacteria) have no nucleus; Eukaryotic cells (animal and plants cells) do.
Write the equation for Cellular Respiration.
Glucose + Oxygen--> Carbon Dioxide + Water + ATP
Define stimuli and provide an example.
A change that causes a response. Hot outside (stimuli) causes us to sweat to maintain homeostasis.
Which body system protects the body against pathogens?
Immune system
What organ is responsible for the diffusion of nutrients and oxygen from mom to fetus during fetal development?
Placenta
Identify the levels of organization in a multicellular organism (6 levels) from smallest to largest.
Organelles--> Cells--> Tissue--> Organ--> Organ System--> Organism
Write the equation for Photosynthesis.
Carbon Dioxide + Water + Sunlight--> Glucose + Oxygen
A process whereby a change to the system will result in an alarm that triggers a specific response (positive or negative).
Feedback mechanism
Identify the contents of a vaccine.
Dead or weakened pathogen.
A Blue Whale has 44 chromosomes in their body cells. If a cell undergoes meiosis, the cells produced will have how many chromosomes?
22
Identify the 6 characteristics of Life.
Responds to the environment; Grows and develops, Produces offspring; Maintains homeostasis; Has complex chemistry; Consists of cells
Identify the 3 Factors that Effect Enzyme Reaction Rates.
Shape, Temperature, pH
A person usually experiences small variations in blood glucose levels throughout the day. These variations in blood glucose levels are an example of
Dynamic Equilibrium
Identify what happens in the body when an individual receives a vaccine.
Body produces specific antibodies in response to the antigens on a pathogen
Identify the process in which a stem cell becomes a specialized cell, like a skin cell, by turning certain genes on or off.
Cell Differentiation