Cells & their role
The most microscopic unit of structure & function of all living things
Cell
A group of specialized cells working together is called a
Tissue
Name 5 organs
Heart, Lungs, Brain, Stomach, Liver, Kidneys, Skin, Small Intestine, Large Intestine, Bladder ect
How do plants take in carbon from the environment?
Through photosynthesis
Give an example of a specialized human cell.
Red blood cell, nerve cell, etc.)
Why are tissues necessary in multicellular organisms?
They allow cells to work together for complex functions
Why do organisms need organs instead of just tissues?
Organs perform complex functions that tissues alone cannot do
How do decomposers help the carbon cycle?
They break down dead organisms and release carbon back into the atmosphere, and return nutrients to the soil.
What is the role of cells in a multicellular organism?
They perform specialized functions.
Predict what would happen if nerve signals couldn’t reach the muscles.
The muscles wouldn’t move, leading to paralysis
What would happen if the digestive system could not absorb nutrients properly?
The body would not receive the energy it needs to function
Predict what would happen to carbon levels if all trees were removed from an area.
Carbon dioxide levels would rise, leading to climate change effects.
How do cells contribute to the carbon cycle?
They release Carbon Dioxide during cellular reparation
Explain the relationship between cells, tissues, and organs.
Cells make up tissues, tissues form organs, and organs work together in organ systems.
Explain how plant organs (leaves, stems, roots) contribute to survival.
They help with photosynthesis, support, and absorbing nutrients
Why do humans have a major impact on the carbon cycle?
Burning fossil fuels increases atmospheric CO₂
How do specialized cells help multicellular organisms survive?
They perform specific functions, like carrying oxygen or sending signals, making the organism more efficient
In plants, vascular tissue helps transport materials. How is this similar to a function in animals?
It’s similar to how blood vessels transport nutrients in animals
Explain why no organ system can function completely independently
All systems rely on each other for survival—e.g., circulatory moves oxygen, nervous controls actions, etc.
Give an example of how combustion could disrupt the carbon cycle
Burning fossil fuels releases excess CO₂, disrupting the carbon cycle by adding more carbon than plants and oceans can absorb. This leads to global warming, climate change, and ocean acidification.