Biology High School

Madison is conducting a biotechnology experiment in her kitchen. Her goal is to make yogurt with a pH of 4.5 in the optimal time of 4 hours. Normally, she uses a mixed culture of L. bulgaricus and S. thermophiles to ferment yogurt. She designs her experiment to include the mixed cultures but also with the L. bulgaricus culture alone to see if one would ferment faster. She graphs her results to display her data.The graph depicts the results of an experiment to make yogurt. Over six hours, milk maintains 6.5 pH. When L. bulgaricus is added to milk, the pH declines from 6.5 to about 4.3 in six hours. When L. bulgaricus and S. thermophilis are added, the pH declines over six hours to approximately 3.5.Study the graph of her results.Certain bacteria that produce lactic acid as a waste product during fermentation, an Choose... process, are important to the food industry. This lactic acid is what gives yogurt its Choose... taste. From the graph, based on the pH after 4 hours, the Choose... would taste the most acidic.

Answers

Answer 1

Answer:

Firstly, Milk alone did not ferment or change in pH at all, showing that it is a control variable on this experiment. The L. bulgaricus culture alone did not meet Madison's goal to make yogurt with a pH of 4.5 within 4 hours; however, the mixed culture S. thermophilis and L. bulgaricus met Madison's goal of reaching a 4.5 pH. In conclusion, the mixed culture is the fastest fermenting culture that madison has, and it meets her goal of reaching a pH of 4.5 in the optimal time of 4 hours.

Related Questions

in the reference to genetics what does dominance and recessive mean​

Answers

Answer: well see if a trait is dominant you are more likely to have said trait if a trait is recessive you are less  likely to have said trait

Explanation:

Answer:

dominance is the one that will be seen in a creature, recessive traits will not be seen, but can still be passed on

Explanation:

if both parents pass on the same recessive gene then their child will show that trait, such as two sets of parents, one dark skinned and one light skinned, their children will be dark skinned, but if their children have a child is has a chance of having light skin because they both carry that recessive trait.

A student is observing a cell under a compound microscope. The student has been asked
to list an evidence that can be used to determine if the cell belongs to kingdom Plantae or
kingdom Animalia. Which organelle could be used to determine the correct placement of
the cell?

A.ribosome
B.nucleus
C.mitochondria
D.cell wall

Answers

the answer is actually d. a cell wall. both plant and animal cells contain ribosomes, a nucleus, and mitochondria. but only plant cells contain a cell wall and animal cells do not.

A cell is the fundamental, structural, and functional unit of all living things. Plant cells do not have lysosomes or centrosomes, whereas animal cells do (or a pair of centrioles).

What is Plant cells?A plant cell is a eukaryotic cell with a true nucleus and organelles that perform specific functions. However, some organelles found in plant cells differ from those found in other eukaryotic cells. Organelles, cytoplasmic structures, cytosol, cell membrane (also known as plasma membrane), and cell wall are all components of a typical plant cell structure.Plastids, nucleus, mitochondria, endoplasmic reticulum, and Golgi apparatus are plant cell organelles. The plant cell is the fundamental unit of all plants. Plant and animal cells are both eukaryotic, which means they have a membrane-bound nucleus and organelles. The following is a summary of some of the most important characteristics of plant cells. See cell for a more in-depth explanation.

To learn more about Plant cell refer to:

https://brainly.com/question/913732

#SPJ2

............ Are used to build sugar? ​

Answers

The common 'sugar' (sucrose) used is made up from glucose and fructose and is extracted from sugar cane or sugar beet. Sugar cane is grown in tropical and sub-tropical parts of the world, including South Africa, Brazil, India, Mauritius and the West Indies.

Common baboons live on the savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop. Which of these is a likely outcome of movement by young males?

Answers

Answer:

Dominance fights

Explanation:

plant growth
Roots pry apart cracks in rocks
is it a chemical weathering or mechanical weathering​

Answers

Answer:

Mechanical Weathering.

Explanation:

Answer:

Mechanical weathering

Explanation:

burrowing in the ground breaks rocks

Which organism is labeled as the HERBIVORE?
a. pumpkin
b. mouse
c. snake
d. hawk

Answers

D the answer is hawk
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