Cell Specialization
What is the purpose of cell specialization?
So each cell has a specific job
What is the smallest unit of life?
Cell
What is a stimulus?
An event or situation that will cause a response
What body system is responsible for the movement of the body and protection of internal organs?
What is the muscular and/or skeletal systems
Cells, DNA, homeostasis, respond to environment, reproduce, energy and grow and develop
Why are nerve cells long and branched?
In order to send and receive electrical signals
What does a group of organs make?
Organ system
The way the body reacts to a stimulus
This body system delivers nutrients through the blood
circulatory system (cardiovascular system)
Put the levels of human body organization in order SMALLEST to LARGEST
cell, tissue, organ, organ system, organism
What type of cells are flexible, round and tiny and found in the blood vessels?
Red blood cells
What is a group of cells that have a similar job in the body?
Tissues
What is homeostasis?
The body's ability to maintain internal conditions based on external environment
This body system includes the lungs and alveoli
Respiratory system
Ouch- I touched a hot stove- what body systems will be used to respond to this stimuli?
nervous system, muscular system and skeletal systems
What type of cells are similar to a rubber band that can expand and contract?
The brain is an example of a(n)
an organ
During exercise, why does your body sweat?
In order to cool off the body, lower the body temperature
This body system is responsible for using your senses and interpreting messages
Nervous system
What organelle is responsible for creating energy in a cell?
Mitochondria
Why can't cells switch jobs in the body?
Each cell has a specific structure (shape) and function (job) that fits the location of the body
one living thing, the highest level of human body organization
organism
Explain what happens when you start to shiver because you are cold- how is your body maintaining hoemostasis?
Your muscles are moving (twitching/shaking) to try and warm up your body (muscles create heat)
This body system breaks down food into glucose
Digestive system
What are 3 key organs in the respiratory system?
lungs, alveoli, trachea, mouth, nose, diaphragm, bronchi