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dexar [7]
3 years ago
13

What must be added to the plate before examination of amylase production?

Biology
1 answer:
yanalaym [24]3 years ago
4 0

Gram's iodine reagent must be added to the plate before examination of amylase production.

Explanation:

The starch hydrolysis test is conducted to test the presence of the enzyme amylase in the test medium.

These are confirmatory lab tests done to detect and identify the presence of bacteria which can hydrolyze starch like amylose with the help of enzymes like amylase.

The test medium for this test is agar medium in a petri dish, where soluble starch is first added to initiate the microbial growth. Once incubation period of the microbes is over, dilute iodine solution is added to the petri dish in increased quantity. Iodine is a dye which helps to clearly identify the areas which are hydrolyzed by amylase and those which are not with the help of its color.

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If there is dissolved carbon dioxide in the water, are underwater plants able to perform photosynthesis? Explain why or why not.
Alenkasestr [34]

Answer:

Plants undergo photosynthesis, which is the process where carbon dioxide, water, and sunlight are transformed into sugar and oxygen. Even though they look different than terrestrial (land) plants, aquatic plants, or plants that live on the water's surface or submerged underwater, also undergo photosynthesis.

6 0
3 years ago
Cancer is the uncontrolled growth of cells. Which of the following would be most likely to cause
viva [34]

Answer:

Mutations in regulatory proteins during the cell cycle may cause affected cells to divide uncontrollably

Explanation:

7 0
3 years ago
Which statements explain reasons why unconformities occur? Check all that apply.
likoan [24]

Answer:

3. Rocks erode and sediment is deposited.

4. No sediment is deposited over a long time.

Explanation:

An unconfomity is a break in stratigraphic record of a place usually as a result of non-deposition or erosion.

In a sequence of sedimentary rock strata some surfaces called unconformity surfaces gives clues about the depositional history of a particular place. During an unconfomity, there is usually no sediment deposition and when deposition resumes, the underlying rocks and the new ones will not share the same attribute especially by age. Unconformity can also be as a result of erosion of a sequence.

In the case of non- conformity, a sedimentary rock is deposited above an igneous or sedimentary rock. Option 5 is a simple example of an igneous intrusion called a sill. It is not unconformity.

3 0
3 years ago
Read 2 more answers
Unlike prokaryotic cells eukaryotic cells have the ability to
astra-53 [7]
The answer is A.

Prokaryotic organisms are simpler than eukaryotic organisms are are single-celled. They do not contain the genetic information to form complex, specialized structures as eukaryotes do, so they cannot form multi-cellular bodies. The remaining options apply to both prokaryotes and eukaryotes.
4 0
3 years ago
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A man with type A blood whose mother was type O is married to a woman with type AB blood. What are the blood types of their chil
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Answer:

possible blood type

A. 50%

B. 12.5%

AB. 37.5%

:)

6 0
2 years ago
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