Science Unit 2 Main Principals Flashcards
Science (11 cards)
What are the characteristics shared by all living things?
Growth, reproduction, metabolism, and response to stimuli
These characteristics define life and distinguish living organisms from non-living matter.
What are the two types of cellular organization in living organisms?
Single cells and multicellular organisms
Multicellular organisms can contain trillions of cells.
How do cells organize in multicellular organisms?
Into tissues, organs, and systems
Each level of organization performs specific functions vital for the organism’s survival.
What must happen to food for the body to use it for energy?
It must be broken down into molecules and transported to the cells
This process is essential for cellular metabolism.
What chemical reaction occurs in cells to release energy?
A reaction involving glucose and oxygen
This process is known as cellular respiration.
What do cells use food for?
Building materials and energy
Cells require nutrients to maintain structure and function.
What do body systems provide to cells?
Basic needs such as food, oxygen, and waste removal
This ensures cells can function effectively.
What is the human body described as?
A system
The body functions as an integrated unit with various systems working together.
What functions do cells carry out?
Growing, reproducing, getting energy from food, and responding to stimuli
These functions are essential for the survival of individual cells.
True or False: Cells are considered living things.
True
Cells exhibit all the characteristics of life.
What system coordinates all other body systems?
The nervous system
The nervous system plays a crucial role in regulating bodily functions and responses.
