BIOLOGY STUDY NOTES ESSAY
What is the importance of transport in and out of cells?
Make sure cells have constant/ instant supply of what it requires and ability to remove waste
products to prevent cell death
1. Phloem mass transport
2. Photosynthesis/ respiration chemiosmosis theory and CO2 + O2 transport
3. Neurones/synapses/receptors
4. Cotransport of glucose
What is the importance of haemoglobin?
1. Transportation of oxygen around the body to respiring cells for energy
2. Control of affinity for oxygen at different locations to control O2 blood levels
3. Bohr effect to control CO2 concentration
4. Fetal and mother transport of oxygen
What is the importance of the immune system?
1. Remove unwanted pathogens from blood/body to prevent pathogen dividing and infecting
more cells as it could leave to death
2. Immunity to disease
What is the importance of muscle contraction?
1. Allows escape from predators or catch prey
2. Movement to better climates
What is the importance of tropism?
1. Roots in better position to gain nutrients from soil; reaches parts with higher concentration of
ions
2. Leaves are more exposed to light from the sun for photosynthesis (more light falls on
chlorophyll)
3. Altogether allows growth and development of plant
What is the importance of hormones?
1. Hormone auxin in tropism
2. Control of glucose levels
3. Control of water levels with ADH
4. ACh neurotransmitter for synapse transmission
What is the importance of homeostasis?
What is the importance of transport in and out of cells?
Make sure cells have constant/ instant supply of what it requires and ability to remove waste
products to prevent cell death
1. Phloem mass transport
2. Photosynthesis/ respiration chemiosmosis theory and CO2 + O2 transport
3. Neurones/synapses/receptors
4. Cotransport of glucose
What is the importance of haemoglobin?
1. Transportation of oxygen around the body to respiring cells for energy
2. Control of affinity for oxygen at different locations to control O2 blood levels
3. Bohr effect to control CO2 concentration
4. Fetal and mother transport of oxygen
What is the importance of the immune system?
1. Remove unwanted pathogens from blood/body to prevent pathogen dividing and infecting
more cells as it could leave to death
2. Immunity to disease
What is the importance of muscle contraction?
1. Allows escape from predators or catch prey
2. Movement to better climates
What is the importance of tropism?
1. Roots in better position to gain nutrients from soil; reaches parts with higher concentration of
ions
2. Leaves are more exposed to light from the sun for photosynthesis (more light falls on
chlorophyll)
3. Altogether allows growth and development of plant
What is the importance of hormones?
1. Hormone auxin in tropism
2. Control of glucose levels
3. Control of water levels with ADH
4. ACh neurotransmitter for synapse transmission
What is the importance of homeostasis?
