Over a million students use our free study notes to help them with their homework
Alveoli have a large surface area, allowing more oxygen and carbon dioxide molecules to diffuse across at one time.
glucose + oxygen = carbon dioxide + water
Photosynthesis is the process in which energy in the form of sunlight is used to convert water and carbon dioxide into glucose. The factors that limit the rate are carbon dioxide concentration, temperatur...
A neuron, or a nerve cell takes up, processes and transmits information using electrical and chemical signals and is a basic component of the nervous system. Information is gathered through a process kno...
NADH and FADH are oxidised to release electrons. The electrons are passed through a series of specialised proteins complexes embedded into the inner membrane. As the electrons are transferred to the next ...
1
2
3
4
5
6
7
Internet Safety
Payment Security
Cyber
Essentials
Comprehensive K-12 personalized learning
Immersive learning for 25 languages
Trusted tutors for 300 subjects
35,000 worksheets, games, and lesson plans
Adaptive learning for English vocabulary
Fast and accurate language certification
Essential reference for synonyms and antonyms
Comprehensive resource for word definitions and usage
Spanish-English dictionary, translator, and learning resources
French-English dictionary, translator, and learning
Diccionario ingles-espanol, traductor y sitio de apremdizaje
Fun educational games for kids
