Revision January Flashcards
What is the primary function of the skeleton?
The primary function of the skeleton is to provide structure and support to the body.
Name three main components of the skeletal system.
- Bones
- Cartilage
- Joints
What role do muscles play in the body?
Muscles are responsible for movement and maintaining posture.
What are the two main types of muscles?
- Skeletal muscles
- Smooth muscles
Fill in the blank: The _______ is responsible for the process of breathing.
[lungs]
What is the function of the lungs?
The lungs are responsible for gas exchange, allowing oxygen to enter the body and carbon dioxide to be expelled.
True or False: Smoking has no effect on lung function.
False
List two effects of drugs on the body.
- Altered mental state
- Impaired physical coordination
What is gas exchange in plants?
Gas exchange in plants involves the uptake of carbon dioxide and release of oxygen through stomata.
Fill in the blank: Plants primarily exchange gases during _______.
[photosynthesis]
What is the significance of stomata in plants?
Stomata are small openings that allow for gas exchange and transpiration in plants.
Name a key nutrient essential for human nutrition.
Carbohydrates, proteins, fats, vitamins, or minerals.
What is the process of digestion?
Digestion is the breakdown of food into smaller components that can be absorbed by the body.
What is the role of the digestive system?
The digestive system processes food, extracts nutrients, and eliminates waste.
Fill in the blank: The _______ is the organ where most nutrient absorption occurs.
[small intestine]
