Use of Biological Resources Flashcards

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1
Q

What 2 products can yeast create?

A

Beer and bread

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2
Q

What animal kingdom is yeast from?

A

Fungi

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3
Q

Name every part of the yeast cell?

A

Nucleus, cell membrane, cell wall (chitin), ribosomes, Mitochondria, Vacuole /glycoren

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4
Q

What does a yeast cell not include?

A

Chloroplasts

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5
Q

Design an experiment to investigate the effect of temperature on the rate of anaerobic respiration? (CORMS)

A

C - Change the temperature (10 degree etc)
O - Yeast (same species)
R - x10 or x3
M - effect of temperature on anaerobic respiration - counting bubbles
S - yeast species, CO2 concentration, room temperature

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6
Q

What will the results 30 degrees on the effect of temperature on yeast respiration?

A

Few bubbles as there was some kinetic energy and some collisions between enzymes

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7
Q

What will the results 40-50 degrees on the effect of temperature on yeast respiration?

A

Many more bubbles as there is a lot of kinetic energy meaning there is many collisions between enzymes creating enzyme substrate complexes

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8
Q

What will the results 60-70 degrees on the effect of temperature on yeast respiration?

A

Very little to none bubbles as there is too much kinetic energy and too violent collisions meaning there will be less successful collisions and the enzyme will denature

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9
Q

What colour will the yeast be on the Hydrogen carbonate indicator at 40 degree?

A

Yellow - high amounts of respiration

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10
Q

What colour will the yeast be on the Hydrogen carbonate indicator at 70 degree?

A

Purple

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11
Q

Give all the parts of a bacteria cell?

A

Nucleotide, flagella, cell membrane, plasmids, ribosomes, cytoplasm

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12
Q

What is the difference between an animal cell and a bacteria cell?

A

Bacteria has a string of DNA compared to a nucleus - Bacteria is a prokaryotic

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13
Q

What bacteria is used to make yogurt?

A

Lactobacillus Bulgaricus

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14
Q
A
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