Requirement of Cells in Multicellular Organisms Flashcards
(14 cards)
What do cells require for respiration?
Oxygen and glucose
These substances are essential for energy release needed for growth, repair, and other life functions.
How is oxygen transported to cells in multicellular organisms?
Through the respiratory system and circulatory system via the bloodstream
In humans, oxygen is taken in through the lungs.
What is the source of glucose for cells?
Food, which is broken down by the digestive system
Glucose is then transported through the blood.
What waste product is produced during respiration?
Carbon dioxide
It is removed through the respiratory system to maintain balance.
What systems work together to provide cell requirements in multicellular organisms?
Circulatory system, Reproductive system, Excretory system, Digestive system, Respiratory system, Musculoskeletal system
These systems help transport gases, nutrients, water, and remove wastes.
What are the basic building blocks of life?
Cells
They perform all activities necessary to keep an organism alive.
How do unicellular organisms perform life processes?
Independently, using a single cell
Examples include bacteria.
What are tissues made of?
Collections of similar cells that perform a particular function
For example, muscle tissue is formed from muscle cells.
What is the relationship between tissues and organs?
Different types of tissues combine to form organs
Each organ has a specific role and is made up of tissues working together.
What is an example of an organ and its tissues?
The heart, which contains muscle and connective tissues
These tissues enable the heart to pump blood.
What do multiple organs that work together form?
An organ system
For example, the heart, blood vessels, and blood make up the circulatory system.
What is the significance of organ systems working together?
They make up a complete organism
This organization allows for more complex functions than unicellular organisms.
Fill in the blank: In multicellular organisms, similar cells group together to form _______.
Tissues
Tissues perform specific functions within the body.
True or False: In multicellular organisms, cells have specific roles and work together in organized structures.
True
This organization is key to the functioning of multicellular life.
