Levels of Organization
True or False: All cells are the exact same size and shape and contain all of the same parts.
False
True or False
All bacteria are harmful.
False
The ___________ is a strong supportive outer covering of a plant cell.
cell wall
Which system transports blood to all parts of the body through the help of the heart?
Circulatory
What system is the alveoli a part of?
Respiratory System
List the levels of organization in the human body from least to most complex.
cells
organ systems
organs
tissues
cells, tissues, organs, organ systems
____________ are a group of two or more organs that work together to perform a specific function.
The nucleus, mitochondria, and vacuole are all examples of ________________.
organelles
Which system is responsible for gas exchange?
Respiratory System
What is the function of the liver?
To produce bile
_________ are the most basic units of structure and function within the human body.
cells
______________ are a group of two or more different types of tissue that work together to perform a specific function.
Organs
The _________________ is the thin flexible outer covering of a cell. It controls what enters and leaves the cell.
Cell Membrane
Which system do the lungs belong to?
respiratory system
What part of the circulatory system is responsible for fighting off infection within the body?
White blood cells
_________ tissue carries impulses back and forth to the brain from the body.
Nerve
_________ tissue contracts and shortens, making body parts move.
Muscle
___________ are sites where photosynthesis takes place in plant cells.
Chloroplasts
Which system does the stomach belong to?
Digestive
What is the large, flat muscle that helps in breathing?
diaphragm
_________ are a group of specialized cells that work together to perform the same function.
Tissues
__________ tissue connects all the parts of the body and provides support.
Connective
All living things are made of __________.
cells
What organ is responsible for digesting food by mechanical and chemical digestion, storing food short term?
Stomach
Which organ is responsible for the majority of chemical digestion?
small intestine