1. what term is used to describe the different structures of a glucose and
b glucose? [1mark]: hydroxyl group
2. describe how the result from the colorimeter can identify the fruit
juice containing the higher sugar content [1 mark]: juice b
3. suggest how pna affected the transcription of the section of dna [2
marks]-
: tight binding to mrna due to the strand displacement in a dna target
4. describe how the production of messenger rna (mrna) in a eukaryote cell
is different from the production of mrna in a prokaryotic cell[2marks]:
eukaryotic transpiration takes place of the nucleus,while prokaryotic
transcription takes place in the cytoplasm.
5. describe the role of atp in the process of translation in protein synthe-
sis[2marks]: the formation of a peptide bond between amino acids
requires energy in the form of atp.the atp needed for translation is
provided by the mitochondria within the cell
6. describe the structure and function of the nucleus[4marks]: a membrane
bound structure that contains the cell's hereditary information and
controls the cell's growth and reproduction.
1/
, it is separated from the cytoplasm by a nuclear
membrane. command center of a eukaryotic cell.
the shape is disc shaped
7. the student controlled variablea in the test using benedicts solution.
give two variables the student controlled.[2marks]: 1 sample volume
2 temperature
8. What is a gene?: segment of DNA that codes for a protein. a
sequence of dna nucleotide bases that codes for a polypeptide.
9. ZO-1 question?: zo1 is located in cell surface
membrane. 2 antibody is complementary to zo1 .
3 so binds to the zo1.
4 cells identified with dye linked to antibody
10.DNA replication during interphase. two divisions. separation of
homol- ogous chromosomes. separation of sister chromatids. produces 4
haploid cells.: How many daughter cells are produced at the end of
meiosis?
11.what is pre mrna: pre mrna only produced in eukaryote cell. splicing
only occurs in eukaryote cell.
12.what is pna: pna is complementary to dna,reducing rna polymerase
2/
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