No student devices needed. Know more
30 questions
State the name of enzyme X
Which of these is an advantage of producing human insulin using human genes inserted into bacteria
The insulin could be from different species
Large amounts of insulin are produced quickly
Depends on donations from other humans
Irregular supply
A factory uses biotechnology to process apples.
Some of the apple juice is mixed with yeast and used to produce ethanol.
State the type of respiration in yeast that produces ethanol.
A factory uses biotechnology to process apples.
Some of the apple juice is mixed with yeast and used to produce ethanol.
State the name of the substance in apple juice that is converted to ethanol by yeast.
Genetically modified bacteria are often grown in fermenters.
State the name of one commercial product, other than insulin, that is made in fermenters
a gene from a healthy human
cells from a human pancreas
DNA from another bacterium
molecules of human insulin
ligase enzymes are used in genetic engineering to
cut open plasmid DNA
insert plasmids into bacteria
isolate the DNA making up a human gene
join human DNA to plasmid DNA
With which kingdoms do bacteria share the same genetic code?
animal, plant, fungus and protoctist
animal, plant and fungus only
animal and plant only
animal only
Why are bacteria useful in biotechnology and genetic engineering?
Bacteria do not have cell vacuoles
Bacteria do not have mitochondria
Bacteria have cell walls
Bacteria share their genetic code with all other organisms
Why is yeast used in breadmaking?
to produce alcohol
to produce carbon dioxide
to use up oxygen
to use up sugar
A food stain on a tablecloth is where meat cooked in oil has been split.
It is washed in biological washing powder.
What combination of enzymes should be present in the washing powder to remove the stain?
amylase and lipase
lipase and protease
pectinase and amylase
protease and pectinase
It is now possible to alter the DNA in potato plants so that they produce chemicals that can be used as bioplastics or biofuels.
State the name of the process used to alter the DNA in plants
artificial selection
genetic engineering
natural selection
selective breeding
State the name of a product of biotechnology, other than bread that make use of microorganisms
Which antibiotic is more effective against this bacteria
E
F
In which ways can genetic engineering can improve crops
Make them pest or drought resistant
Make them more nutritious
Make them larger
All answers are correct
What is recombinant DNA
DNA from 2 different organisms combined
DNA from 2 different ribosomes
DNA that is separated out from a vector
A circular piece of DNA, found in bacteria, is called:
A plasmid
mRNA
Ribosome
Nucleotide
What is the function of the air inlet in the ferementer?
Provide clean air
Provide oxygen for the aerobic respiration of microrganisms
Provide carbon dioxide for the anaerobic respiration of microrganisms
Mixes the solution to keep nutrients and temperature evenly distributed.
What is the function of the stirring paddles in the ferementer?
Allows sterile nutrients for the microorganisms to grow and reproduce.
Provide oxygen for the aerobic respiration of microrganisms
Provide carbon dioxide for the anaerobic respiration of microrganisms
Mixes the solution to keep nutrients and temperature evenly distributed.
Which enzyme would be added to fruit in order to create a larger volume of juice out of the plant cells?
Amylase
Maltase
Pepsin
Pectinase
Explore all questions with a free account