Free Printable Biotechnology Quiz

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Biotechnology Quiz

Total questions: 15

Worksheet time: 8mins

Name

Class

Date

What is the role of anaerobic respiration in yeast during the production of ethanol for biofuels?

Anaerobic respiration in yeast produces carbon dioxide, which is harmful for biofuel production.

Yeast only uses aerobic respiration for ethanol production in biofuels.

Anaerobic respiration in yeast generates heat, which is used to power engines.

Anaerobic respiration in yeast produces ethanol through fermentation, which is essential for biofuel production.

What is the role of yeast during bread-making?

Yeast adds flavor to the bread without affecting its texture.

Yeast is used to color the bread crust during baking.

Yeast acts as a preservative to extend the shelf life of bread.

Yeast helps the dough rise by producing carbon dioxide during fermentation.

What is the use of pectinase in fruit juice production?

Pectinase is used to add flavor to fruit juice.

Pectinase is used to preserve the color of fruit juice.

Pectinase is used to carbonate fruit juice.

Pectinase is used to clarify fruit juice and improve yield by breaking down pectin.

What is the advantage of biological washing powders that contain enzymes?

They clean effectively at lower temperatures and are energy-efficient.

They require higher temperatures for effective cleaning.

They contain more fragrances for a pleasant smell.

They are cheaper than regular detergents.

What is the use of lactase to produce lactose-free milk?

Lactase is a type of milk that contains lactose.

Lactase is used to thicken milk for better texture.

Lactase is used to add flavor to milk.

Lactase is used to break down lactose into simpler sugars, making lactose-free milk.

Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi.

Fermenters are primarily used for growing plants and not microorganisms.

Bacteria and fungi cannot produce insulin or penicillin in fermenters.

Fermenters enable large-scale production of insulin, penicillin, and mycoprotein by providing controlled environments for bacteria and fungi to grow and produce these valuable products.

Fermenters are used only for small-scale production of beverages.

What are the conditions that need to be controlled in a fermenter?

Light intensity, wind speed and humidity

Carbon dioxide concentration, nitrogen content and light exposure

Fermenter size, materials and color.

Temperature, pH, and oxygen levels.

Which one is the example of how genetic modification is useful in agriculture to produce higher quality crops?

Organic corn that is fertilised by organic materials only.

Bt cotton, which is genetically modified to resist bollworm pests.

Different wheat varieties with no pest resistance.

Naturally herbicide-resistant soybeans.

The process of genetic modification using bacterial production of a human protein involves isolating the gene and inserting it into the ... .

chromosome

virus

ribosome

plasmid

10.

Which statement shows one of the disadvantages of genetically modifying crops?

Genetically modified crops can lead to reduced biodiversity.

Genetically modified crops require less water than traditional crops.

Genetically modified crops are always more nutritious.

Genetically modified crops can increase crop yields.

11.

What is the role of restriction enzymes in genetic modification?

To isolate the required gene

To insert the gene into the plasmid

To cut the plasmid DNA

To amplify the gene

12.

What is the purpose of ligase enzymes in genetic engineering?

To cut DNA

To join DNA fragments

To replicate DNA

To transcribe DNA

13.

What is Bt cotton?

A type of herbicide

A genetically modified crop

A type of insect

A natural pesticide

14.

What is the advantage of using GM crops?

Increased biodiversity

Reduced use of pesticides

Higher costs for farmers

More time-consuming for farmers

15.

What is one of the ethical issue about genetically modified crops?

Increased crop yield

Reduction in pesticide use

Improved soil quality

Impact on biodiversity

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Biotechnology Quiz

Total questions: 15

Worksheet time: 8mins

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