Cells and Systems unit Flashcards
(24 cards)
What are the characteristics of living things.
They need energy, they react and adapt to their enviroment, they reproduce, they develop over time, and they produce waste
difference between unicellular and multicellular
unicellular has just one cell that carries out all the function. While multicellular is multiple cells carrying out different actions.
what are the 8 basic organnelles.
cell membrane,
cytoplasm,
nucleus,
vacuole,
mitochondria
, ribosomes,
cholorplasts,
cell wall
3 differences between plant and animal cells
animal cells have lysosomes.
planat cells have cholorplasts and cell wall
What are the eight body systems we learned about this year.
Digestive,
Circulatory
Respitory
endocrine
nervous
reproductive
excretory
Muscular
Difference between mechanical and chemical digestion
chemical degrades the food to make it easily absorbed. Mechanical breaks it down to smaller pieces
what is the role of the stomach in the digestive system
acid and muscles break down the food to then it goes to the small intestine
What is the role of the small intestine
Further digests the food + takes nutrients
What is the role of the large intestine
Absorbs water
What are parts of the respiratory system
Nose, diaphragm, lungs, bronchus
How do we take in oxygen and get rid of carbon dioxide
Inhalation and exhalation, this is called the gas exchange
What are alveoli and what do they do in the respiratory system
Alveoli are at the end of the bronchioles, they are where the oxygen and carbon dioxide are exchanged
What is the blood vessel that exchanges carbon dioxide for oxygen at the alveoli
The cappilaries
Where does deoxygenated blood enter the heart
The right atrium
Which part of the heart pumps the de-oxygenated blood to the lungs
The right ventricle
which part of the heart recieves oxygenated blood from the lungs
the left atrium
which part of the heart pumps oxygenated blood to the rest of the body
the left ventricle
what do arteries, veins, capilaries do
arteries carry oxygenated blood away from the heart, veins carry de-oxygenated blood to the heart. Cappilaries connect them.
what do red blood cells do
they carry oxygen and carbon dioxide
What system are kidneys in
The excretory system
Where is urine storred
the bladder
Name parts of the nervous system
Brain, spinal cord, nerves
What is the purpose of the brain in the body
Controls all the bodies functions
