Circulatory
How many chambers of the heart are there?
4
Name 3 organs of the Digestive system
mouth, oesophagus, small/large intestines, stomach, pancrease, gall bladder
what is the 4 levels of organization in the human body?
cells, tissues, organs, organ system
Name 3 organelles
cell wall
cell membrane
nucleus
What is a specialized cell?
a cell that has structures that help it perform specific function
Name the 4 chambers of the heart?
Left Atrium
Right Atrium
Left Ventricle
Right Ventricle
What is the function of the digestive system?
break down food into nutrients the body can then absorb
Name 3 organs and 3 body systems
heart, stomach, liver, brain, lungs
circulatory system,
digestive system
respiratory system
nervous system
What is the organelle responsible for controlling cell's activities?
nucleus
Name 3 examples of speciaized cells
red blood cell
sperm cell
nerve cell (neuron)
root hair cell
Name the 3 types of blood vessels
arteries
veins
capillaries
Where does most absorption occur in the digestive system? and what structure allows it to do this?
small intestines
villi
How many bones in the human body (adult)
206
What is the role of the mitochondria?
provide energy (powerhouse of the cell)
Choose 1 specialised cell and describe how the structure relates to its function
sperm cell- tail for swimming
root hair cell- thin for maximum absorption
red blood cell- concave shape to increase surface area to maximum oxygen absorption
What does the blood deliver to cells?
What does the blood pick up from cells?
delivers oxygen
picks up carbon dioxide
what is the difference between physical and chemical digestive?
physical- teeth biting on food and crunching in mouth
chemical- enzymes released help break down food in mouth, stomach & small intestines
Name 2 types of tissue in the human body
muscular
connective
nervous
epithelial
What 2 organelles does a plant cell have that animal cells do not?
Describe these 2 organelles
cell wall - structure/protection around plant
chloroplast- uses energy from sun to make their own food (photosynthesis)
what is the largest cell in the human body?
Egg cell
Where does the left side of the body pump blood to?
Where does the right side of the body pump blood to?
Left side pumps to entire body
Right side pumps to lungs
What is the role of villi?
increase surface area of intestinal cells to allow for maximum amount of absorption of nutrients back into the body
Name an example of a unicellular organism
bacteria
yeast
amoebas
What is the difference between cell membrane and cell wall?
cell membrane - security guard, allows entry of some materials not of others (plant & animals)
cell wall- structure+ protection around a plant
What structures are found in a Palisade cell?
chloroplasts