1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Drupady [299]
3 years ago
6

You place an inoculum of your bacterium on a glass slide and add a drop of hydrogen peroxide reagent. Promptly you see bubbles a

ppear, indicating the presence of a particular enzyme that the bacterium produces. What type of identification test does this exemplify?
A) Biochemical test
B) Immunochromatography
C) Microarray
D) Precipitation test
Biology
1 answer:
marissa [1.9K]3 years ago
5 0

Answer:

The correct answer is A) Biochemical test

Explanation:

In microbiology biochemical test is used to examine the metabolic activities performed by bacteria to identify that microorganism. So in biochemical test enzymatic reaction of cell is usually investigated because there is difference in enzymatic activity of different species of bacteria.

For example, catalase test that is used to differentiate between catalase-positive and catalase-negative bacteria is an example of biochemical test. Catalase-positive bacteria have the catalase enzyme that breaks hydrogen peroxide into water and oxygen which is confirmed by bubbles that appear on glass slide.

Catalase negative bacteria do not form bubbles when they are put in hydrogen peroxide which shows that they lack catalase enzyme. So the right answer is A.

You might be interested in
A population of rabbits inhabits an island that has an active volcano. The volcano erupted and covered the island destroying mos
lorasvet [3.4K]

Answer:

Few rabbits will be able to find food, so the population will die off and become extinct.

Explanation:

I think it's that one but I don't know for sure.

3 0
2 years ago
Read 2 more answers
A planet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. Find the weight of a 65.0 kg person at 1000 km above the sur
mote1985 [20]

<u>Answer:</u> The weight of the person above the surface of a planet is 635.83N.

<u>Explanation:</u>

To calculate the weight of a person, we use the formula:

w=mg     ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

g=\frac{GM}{r^2}

where, g = acceleration due to gravity = ?m/s^2

G = Universal gravitational constant = 6.67\times 10^{-11}Nm^2/kg^2

M = mass of the planet = 5.97\times 10^{24}kg

r = distance of the person from the planet = 6.38\times 10^6m

Putting values in above equation, we get:

g=\frac{(6.67\times 10^{-11}kgm/s^2.m^2/kg^2)(5.97\times 10^{24}kg)}{(6.38\times 10^6m)^2}\\\\g=9.782m/s^2

Putting this value in equation 1, we get:

w=65kg\times 9.782m/s^2=635.83N

Hence, the weight of the person above the surface of a planet is 635.83N.

7 0
3 years ago
The diagram below shows a food web in a woodland.
gregori [183]
Y is the best options because a secondary consumer will eat a primary consumer for energy (the grass hopper).
7 0
3 years ago
What is the most important characteristic of the gray code?
Ludmilka [50]
<span>For each count, only one digit changes.</span>
7 0
3 years ago
How would a gummy bear placed in salt water be different from a gummy bear placed in regular water?
serious [3.7K]
The regular water gummy bear would be larger
4 0
3 years ago
Read 2 more answers
Other questions:
  • Stem cells may prove useful in the treatment of Type 1 diabetes because
    14·1 answer
  • In bees, the female queen bee is diploid but male bees are haploid. The fertilized eggs develop into female bees and the unferti
    5·2 answers
  • Energy can exist in many different forms, including those you can detect in a burning fire or in a lit lightbulb. Which of these
    7·2 answers
  • Both retinal disparity and convergence increase as an object gets closer to the individual. T/F
    11·2 answers
  • Which event is most likely to cause a widespread influenza outbreak?
    5·2 answers
  • In cells, genes are segments of DNA that code for proteins; not sugars or complex carbohydrates, or lipids, but proteins. The co
    15·1 answer
  • Which criteria allow biologists to divide chemicals into macronutrients and micronutrients?
    5·1 answer
  • Is natural selection the only component of darwin's theory of evolution
    6·1 answer
  • How many gallons of water did the population of Atlanta use per day in 1980?
    13·1 answer
  • Current definition<br><br>please help​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!