Top answers

What is a pathogen? and how does it cause disease?

Pathogens are microorganisms that cause disease. They may be bacteria, viruses, protists or funghi. They can infect animals and plants, causing a wide range of diseases. Pathogens, such as bacteria and virus...
HP
Answered by Hugh P. • Biology tutor
8033 Views

What is the function of a neurone?

The CNS (Central Nervous System) consists of the brain and the spinal cord. Neurones, found in the nervous system, are nerve cells that carry information in the form of electrical signals/impulses. There are...
VR
Answered by Vinya R. • Biology tutor
6129 Views

What are the events that lead to synaptic transmission between two neurons?

There are three compartments to consider- the presynaptic neuron, the synaptic cleft and the postsynaptic neuron. In a classical excitatory synapse: 1. An action potential arrives at the presynaptic neuron, ...
HH
Answered by Holly H. • Biology tutor
3880 Views

Describe the action of enzymes including how they are denatured, using the lock and key model

The key is the enzyme and substrate is the lock. Like a key only unlocks one lock, the active site on the enzyme only fits in 1 type of substrate. Extreme temperature or pH (how acidic something is) denature...
ET
Answered by Emily T. • Biology tutor
8070 Views

How do we inherit certain genes?

Alleles are different versions of a gene. A gene is the piece of DNA which carries information in the form of a sequence of amino acids. For every gene that we have, we carry 2 alleles which could be the sam...
KA
Answered by Kimiya A. • Biology tutor
3469 Views