#Question id: 2297
#I Life Science/ Life Sciences Group – I-V
Which structure is composed of phospholipids and regulates the movement of substances in and out of cells?
#Question id: 12724
#SCPH06 I Botany
In response to sudden, 5 to 10°C rises in temperature, plants produce a unique set of proteins referred to as heat shock proteins (HSPs). There are five classes of heat shock proteins found in plants such as;
|
HSP class |
Examples
(Arabidopsis / prokaryotic) |
Cellular location |
|
I) HSP100 |
a) AtTCP-1 /
GroEL, GroES |
i) Cytosol |
|
II) HSP90 |
b) Various
AtHSP22, AtHSP20, AtHSP18.2, AtHSP17.6 / IBPA/B |
ii) mitochondria |
|
III) HSP70 |
c) AtHSP101 /
ClpB, ClpA/C |
iii) chloroplasts |
|
IV) HSP60 |
d) AtHSP70 /
DnaK |
iv) endoplasmic
reticulum |
|
V) smHSP |
e) AtHSP90 /
HtpG |
|
Match the following HSPs with their correct location and the examples of the HSPs;
#Question id: 27171
#SCPH01 Biochemistry
#Question id: 5761
#SCPH28 | Zoology
E. coli cells were spread on an agar plate, producing 1000 colonies. The colonies are replica plated on two agar plates containing the antibiotic kanamycin and one agar plate without antibiotics. All of the colonies are able to grow on the agar plate without antibiotic but only 4 colonies are able to grow on each of the agar plates containing kanamycin. You notice that the four colonies that grew on each of the kanamycin containing plates are in the exact same position. This demonstrates
#Question id: 4352
#SCPH28 | Zoology
How does extracellular glucose inhibit transcription of the lac operon?