169-194 Flashcards
May 20
True or false: a cell’s shape helps it do its job
true
name 5 cells found in the human body
nerve cells red blood cells bone cells muscle cells fat cells
what type of organisms take in and give off waste directly from or in their surroundings?
unicellular organisms
a group of parts that work together are called
a system
plants and animals use ________ for moving material throughout their bodies
systems
what type of cells in plants and animals can take in or give off wastes
only surface cells
plants use tubes to carry water and ______
nutrients
people and animals have tubes called vessels to carry blood cells that carry nutrients and
oxygen
body systems work together to carry out all your body’s ______ and keep you ________
functions
healthy
which system takes in oxygen= from the air that you breathe?
respiratory system
Name all 4 parts of the respiratory system
- nose and nasal passages
- mouth
- trachea
- lungs
- diaphragm
what is the main structure of the respiratory system?
lungs
what is another name for trachea
windpipe
oxygen is taken into the blood through the lungs. What is given off?
carbon dioxide
the air you breathe in has more
oxygen
the air you breathe out has ore
carbon dioxide
name the tiny sheet that lies below your lungs and attaches with muscle to your ribs
diaphragm
where do you get the things your body needs (materials and energy) to stay alive
the food you eat
what system breaks down food so it can be used by the body?
digestive system
name the 5 parts of the digestive system
- mouth
- Esophagus
- Stomach
- small intestine
- large intestine
what mixes with food when it enters your stomach to help break it down
chemicals
what is absorbed in the small intestine
nutrients
what is removed from food in the large intestine
water
what happens to remaining food that has not been ingested?
it becomes waste
