definitions
What is an organism?
a living thing that can carry out life processes by itself
Order the following from simplest to most complex:
organs
cells
tissues
organ systems
organism
cell, tissue, organs, organ system, organism
What is function?
the activity of each part in an organism
true or false: Structure determines function
true
What is passive transport?
the movement of particles across a cell membrane without the use of energy by the cell
What is a tissue?
a group of similar cells that perform a common function
Name the 4 animal tissues
nervous, epithelial, connective, muscle
What is homeostasis?
the maintenance of a constant internal state in a changing environment
What are the 3 main things cells need to be able to do in order to survive?
delivering nutrients, delivering oxygen, and eliminating wastes
What is diffusion?
the movement of molecules from high concentrations to low concentrations
what is an organ?
a structure made up of a collection of tissues that carries out a specialized function
name the 3 plant tissues
transport, protective, ground
What is mitosis?
the process of cell division where one cell divides into two identical daughter cells
What is exocytosis?
when particles are enclosed in a vesicle and released from a cell
What is osmosis?
the diffusion of water through a semipermeable membrane
what is an organ system?
a group of organs that work together to perform body functions
Name the organs of a plant
stem, leaf, roots
What is photosynthesis?
the process by which plants, algae, and some bacteria make their own food
What are ways our body regulates our temperature?
sweating, shivering
What is active transport?
the movement of particles against a concentration gradient and requires the cell to use energy
What is structure?
the arrangement of parts in an organism or an object
name an organ system in animals
answers will vary
What is cellular respiration?
the process by which cells use oxygen to produce energy from food
What are some behaviors that reptiles use to regulate their temperatures?
basking in the sun
What is endocytosis?
the process by which a cell uses energy to surround a particle and enclose the particle in a vesicle to bring the particle into the cell