Over a million students use our free study notes to help them with their homework
Phagocytes (white blood cells) recognise pathogens via receptors and chemoattractionPhagocytes engulf the pathogen, forming an intracellular compartment called a phagosomeLysosomes fuse w...
Glycerate-3-phosphate is a compound made during the calvin cycle in the leaf stroma. The calvin cycle is a light independent reaction, so continues when the light concentration decreases. To convert Glyce...
Allopatric speciation occurs when the population of a species becomes divided and the two (or more) groups are isolated from one another. Different factors in the environment of each group will affect th...
The binding of the first oxygen molecule changes the tertiary and therefor the quaternary structure of the haemoglobin molecule, therefore exposing another binding site making is easier for the second mol...
Saturated fatty acids have no double bonds between the carbon atoms in their carbon chain (the carbon chain is ‘saturated’ with hydrogen). In contrast, unsaturated fatty acids have at least one double bon...
←
50
51
52
53
54
→
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
