Download 8dc1 bacteria by luke

8Dc-1
Name Luke Matta
Bacteria
Class 8C
Date 21/6/2021
1 Some yeast and some bacteria are growing together inside a sealed wooden vat. Which of
these resources will they compete for? Tick () one.

ethanol

carbon dioxide

light


warmth
glucose
2 The word equation summarises respiration in bacteria.
glucose → Lactic acid
.
a Write in the missing substance.
b This is a type of anaerobic respiration. Why is it ‘anaerobic’?
3 a Use ticks () to complete this table, which compares reproduction in bacteria and yeast.
Bacteria
Yeast

asexual
binary fission

budding

b Why do bacteria reproduce faster in warmer conditions? Tick () the best answer.




There is more oxygen when it is warmer.
Less water evaporates when it is warmer.
Enzymes work faster when it is warmer.
They use anaerobic respiration when warm.
4 What effect do yoghurt-making bacteria have on milk? Tick () the best answer.




They make it sour.
They turn it into cream.
They make it clear.
They make it runnier.
5 Draw lines to match the parts of a bacterial cell with their functions.
soft cell wall
contains the information to control the cell
flagellum
moves the cell
cytoplasm
helps support and protect the cell
chromosome
where respiration occurs
I can…
●
describe anaerobic respiration in bacteria
●
describe how bacteria reproduce
●
describe the functions of the parts of a bacterial cell.
© Pearson Education Ltd 2014. Copying permitted for
purchasing institution only. This material is not copyright free.
18