Biology Unit 1 Part 2

Beschreibung

As Edexcel Biology
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Zusammenfassung der Ressource

Frage 1

Frage
Arteries carry blood ____________________
Antworten
  • Away from the heart
  • To the heart

Frage 2

Frage
WHAT ARE DISACCHARIDES MADE UP OF?
Antworten
  • Two monosaccharides joined together by a condensation reaction.
  • One oxygen atom and two hydrogen atoms for each carbon atom present.
  • Many monosaccharide units joined by glycosidic bonds as a result of many condensation reactions.

Frage 3

Frage
What acts as a template for mRNA?
Antworten
  • Antisense strand
  • Sense strand
  • tRNA
  • Messenger strand

Frage 4

Frage
The absence of the melanin pigment cause what disease?
Antworten
  • Albinism
  • Thalassaemia
  • Cystic fibrosis

Frage 5

Frage
DNA mononucleotides contain a phosphoric acid, a Nitrogen-containing base and which pentose sugar?
Antworten
  • Deoxyribose
  • Ribose
  • Glucose
  • Pentose
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