Between 2013 and 2016 there was an outbreak of a disease called Ebola - Edexcel - GCSE Biology - Question 1 - 2020 - Paper 1
Question 1
Between 2013 and 2016 there was an outbreak of a disease called Ebola.
Ebola is estimated to have caused the deaths of more than 11,000 people.
(a) (i) Why is the n... show full transcript
Worked Solution & Example Answer:Between 2013 and 2016 there was an outbreak of a disease called Ebola - Edexcel - GCSE Biology - Question 1 - 2020 - Paper 1
Step 1
Why is the number of deaths from Ebola only an estimate?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Many deaths were not confirmed to be caused by Ebola. This often happens due to lack of resources and data collection in affected regions.
Step 2
State how Ebola is spread from person to person.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Ebola is spread through direct contact with the bodily fluids of an infected person, such as blood, saliva, or sweat.
Step 3
Describe the next stages of the lytic pathway.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
After the host cell is infected, the virus's genetic material takes over the cell's machinery to replicate itself. New viral components are assembled, and eventually, the host cell bursts (lyses), releasing new viral particles to infect other cells.
Step 4
Name this type of pathway.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This type of pathway is known as the lytic pathway.
Step 5
State what is meant by the term genome.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The genome refers to the complete set of genetic material present in an organism or virus, including all of its genes.
