biology paper 1 Flashcards
high proportion of eosinophills
body produces more cells to combat allergic infection or parasititc infections
transport cell
erythrocytes
defence cells
leucoytes
platlets
how to identify bacteria
-streak plating to seperate from — food faeces
-selective media to isoalte —
-gram staining to identify psotive or nefative
-use antibiodies against –
all rna viruses
have a protein coat
rna viruses
ebola
hiv
tobbaco mosaic virus
conclusion of spearmans rank
if rs > crit value at 5% sig level there is a significant relationship
carbon fixing
carbon dioxide diffuses into the stroma
carbon dioxide binds to ribulose biphosphate
using rubisco
resulting in formation of intermediate 6c compound
why may a protein be shorter
may produce a stop codon which will stop translation sooner
one or several bases may be deleted therefore mrna shorter
epigenetic modifacation
changes that affect gene expression
e.g dna methylation
involved in differentiation
antibody producing cell
plasma cell
role of krebbs cycle
completely oxidises {pyruvate / acetyl Co A}
to release as much energy as possible
to generate ATP (directly)
to produce {reduced coenzyme / NADH}
so that ATP can be produced {in the ETC / by oxidative phosphorylation}
inner membrane of mitochondria
- role of inner membrane is oxidative phosphorylation
- inner membrane contains proteins involved in electron transport
- inner membrane contains ATPase channels
- movement of protons through ATPase channels results in ATP formation
what happens when H+ ions are pumped out of gaurd cells
ATP is broken down into ADP and phosphate ions in hydrolysis
types of cells in plant firtilisation and chromasome numebr
female gamete
male gamete
polar body
tube nucleus
all haploid
