Cells
What type of cells have a cell wall?
plant
what type of tissue is skin?
epithelial
What does the heart do?
pump blood
name the purpose of the circulatory system
to deliver blood, nutrients and oxygen to the tissues and pick up wastes
what does permeable mean?
able to pass through ex) open window
What shape are animal cells?
round
what type of tissue is the brain?
nervous tissue
what do lungs do?
exchange gases (carbon dioxide and oxygen)
name two organs of the respiratory system
lungs, mouth, trachea, nose, bronchi, bronchioles, alveoli
what does semi permeable mean- give an example of something that is semi permeable
allows some things to pass through, but not others ex- cell membrane
What is the control centre of the cell, where DNA is found?
what type of tissue is a bicep?
muscle tissue
what is the purpose of muscles?
to move the body, or help with digestion/circulation/breathing
what are the two parts of the nervous system?
central nervous system (brain and spinal cord) and peripheral nervous system (branching nerves)
what are bacteria and what can we use to treat bacterial illnesses?
single celled organisms- we can use antibiotics
are viruses living or non living? explain
non living- not made of cells and need to be inside a host cell to reproduce
What type of tissue is bone or blood?
connective tissue
what to tissues make up?
organs
what is the immune system for?
healing, preventing illness, and attacking germs when sick
what is the cell theory?
all living things are made up of cells
cells come from pre-existing cells of the same type
cells are the basic unit of life
What are the MR GREEN characteristics of living things?
Movement, Respond, Growth, Reproduce, Excrete, Exchange, Nutrition
what are the four types of tissue? and give an example of each
muscle, connective, epithelial, nervous
name four different organs
heart, lungs, liver, stomach, spleen, brain, pancreas, small intestine, large intestine, gall bladder, kidney, bladder, ovaries, testes
how are the organ systems connected?
they work together to keep an organism healthy. Nervous system (brain) controls and directs all other systems. Circulatory system requires the respiratory system to get oxygen from the air, but also requires the muscular system for the heart to pump the blood. All systems are connected
what is the difference between bacteria and viruses- explain with detail
bacteria- living organisms, good or bad, can be killed with antibiotics
viruses- non living- need a live host to reproduce, can cause illness, can't take antibiotics of them but vaccines can help prevent illness caused by virus