Graphs Flashcards
1
Q
describe how you would plot a suitable graph of these data.
explain your choice of type of graph?
A
- scatter graph
- looking at relationship between 2 discrete / indenpendant variables
2
Q
what can you conclude from these data?
A
- lower percentage of fat in diet, lower death rate
- apart from 25.0 and 35.0 which are anomalies
3
Q
from these data, what can you conclude about the effectiveness of Rituximab in treating patients with CLL?
do NOT include considerations of statistical analyses in your answer
A
- more CD20 on B cell, higher percentage of B cells destroyed
- at best only destroys 80%
- wont cure CLL
- little effect below 5 CD20 on cells
- dont know how many healthy and how many cancerous cells Rituximab is destroying
4
Q
A
- lowers Ea
- less ATP for processes such as muscle contraction
- ATP provides energy for enzyme reactions
5
Q
A
- to get comparable results
- ensure consistency in way of counting
- avoid counting same cells twice
6
Q
A
fewer white cells, no need to dilute
7
Q
A
- cell memb made from phospholipid
- detergent dissolved membrane
8
Q
A
- micrograms - very little ammonia in soil
- per gram - allow comparison between sample
9
Q
scientists concluded that the soil mixture experiment showed there were different communities of bacteria in soils A and B.
use figure to support conc
A
- pH 4.3 has fastest rate of breakdown
- mixture at pH 6.9 slowest
- suggests communit at pH 4.3 doesnt work well at pH 6.9
10
Q
this method allowed scientists to estimate the expression of amoA gene in each culture but not the growth of the bacterial population in each culture
explain why
A
- didnt count bacterial cells
- dont know how much mRNA produced by each cell
- copies of mRNA related to amount of enzyme translated
- dont know if mRNA contributing to growth
11
Q
A
- steam bottle
- kill other bacteria that might break down ammonia
