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RUDIKE [14]
3 years ago
5

Do cells really use 4000+ enzymes to carry out their functions?​

Biology
1 answer:
Juli2301 [7.4K]3 years ago
8 0

Answer:

Yes

Explanation:

Enzymes are involved in most of the chemical reactions that take place in organisms. About 4,000 such reactions are known to be catalyzed by enzymes, but the number may be even higher.

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Please answer all :)
Serggg [28]

Answer:

i) Rusting occurs the least in tubes 2 and 3 because either of air and water which are necessary for rusting is absent in the two tubes respectively.

ii) Rusting occurs most in tube 1 because both air and water which are necessary for rusting are present.

Explanation:

Rusting is a chemical change which involves a redox reaction. During the process of rusting, metallic iron is oxidized to hydrated iron (iii) oxide by oxygen present in air.

For rusting to take place effectively, each of these three factors mist be available: metallic iron, oxygen and water.

In the figure above, the iron nails in the three tester tubes will rust to different extents based on the availability of the three factors.

In test tube 1, the iron nails will rust the most because all the three factors: metallic iron, oxygen present in air, and water are abundantly present.

In test tube 2, the iron nails will rust the least or not at all because boiling of water removes dissolved oxygen from water and the oil layer above the boiled water prevents entry of oxygen from air. Thus, the nail do not rust because one of the three factors for rusting to take place, in this instance, oxygen is absent.

In test tube 3, the iron nails rusts the least or not at all as well because moisture or water is absent. Calcium chloride, a drying agent removes all the moisture from inside the tube. Hence, even though air is present, rusting do not occur as there is no moisture or water present.

7 0
3 years ago
What happens when human body temperature rises during exercise?
In-s [12.5K]
There heart began to beat faster and their body produce more sweat and there blood is following faet
7 0
3 years ago
Which structure transport water and nutrition from the roots to the rest of the plants?
sineoko [7]

Answer:

The structure of plant roots, stems, and leaves facilitates the transport of water, nutrients, and photosynthates throughout the plant.

Explanation:

7 0
3 years ago
Which statement describes the ability of the cell membrane to allow various substance to move through it?
statuscvo [17]

Answer: The cell membrane is selectively permeable.

Explanation: going thru last year notes

6 0
2 years ago
In a certain locality all the farmers are applying fertilizers to the leaves of plants what type of fertilizer application are t
bearhunter [10]

Answer:

probably spraying or dusting the plants

Explanation:

3 0
3 years ago
Read 2 more answers
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