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cricket20 [7]
4 years ago
12

Which statement below best describes how the chemical indicator bromthymol blue (BTB) works? BTB responds to the presence of car

bon dioxide by changing color. BTB is added to aquarium water to keep it blue. BTB will respond to the presence of oxygen by changing color.
Biology
2 answers:
shusha [124]4 years ago
8 0

BTB respond to the presence of carbondioxide by changing color.

Verdich [7]4 years ago
7 0

Answer:

BTB respond to the presence of carbondioxide by changing color.

Explanation:

Bromthymol blue is a chemical indicator dye that changes it color to yellow in the presence of an acid. It respond in the presence of carbondioxide and form carbonic acid, therefore lowering the pH. It becomes blue if the pH is greater than 7.6, it is green if the pH is between 6-7.6 and yellow if the pH is less than 6.

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liq [111]

Answer:

bound to oxyheamoglobin

Explanation:.

Oxyheamoglobin is formed from the reaction of oxygen with haemoglobin.it is the oxygen loaded form of haemoglobin for delivery of oxygen to needed remote areas of the body.

.Hb        +      4O2       ⇒    HbO8

haemoglobin  oxygen    oxyhaemoglobin

Haemoglobin is a protein molecule that binds with oxygen. It has high affinity for oxygen with its four haem groups. Each haem group has binding iron.(Fe). When it is binds  with oxygen it is bright red, and turns purple when it unloaded oxygen at target point.

It has no association with carbondioixde transports except oxygen transport .

Carbon dioxide, is transported as the  listed three options(b,c,d) in the questions. Therefore  bound to oxyheamoglobin is  wrong, and it is the correct answer

     

8 0
3 years ago
4. Many of your body’s responses operate off of either negative or positive feedback loops. When you are cold, you shiver. Expla
GenaCL600 [577]

Answer:

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Homeostasis is maintained at many levels, not just the level of the whole body as it is for temperature. For instance, the stomach maintains a pH that's different from that of surrounding organs, and each individual cell maintains ion concentrations different from those of the surrounding fluid. Maintaining homeostasis at each level is key to maintaining the body's overall function.

Explanation:

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djyliett [7]
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Step2247 [10]

Answer:

It's most likely to be D.

Explanation:

Hope this helps.

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