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stich3 [128]
3 years ago
7

Secondly, explain why energy is not just provided by the simple hydrolysis of ATP.

Biology
1 answer:
Nataliya [291]3 years ago
6 0

Answer:

The exergonic reaction of hydrolysis of ATP must be coupled to an endergonic reaction to perform work or to power other reactions.

Explanation:

ATP (adenosin triphosphate) is hydrolized to give ADP and releases energy as follows:

ATP + H₂O ⇆ ADP + Pi + energy

The released energy itself is not used to power biochemical reaction. In order to power other reactions, ATP hydrolysis- a energetically favorable reaction- is coupled to another energetically disfavorable reaction. The linking or coupling is performed through a shared intermediate, which is often a phosphorilated molecule. For example, in the formation reaction of sucrose from glucose and fructose, an intermediate is formated by the transfer of a phosphate group (Pi) provided by ATP hydrolysis. Then, the phosphorilated intermediate (glucose-Pi)- wich is unstable- reacts with fructose in a spontaneous reaction to give sucrose.

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What is the substrate of the enzyme amylase
Kitty [74]

Answer: Substrate of Amylase enzyme is starch.

Explanation: Amylase enzyme is used to speed the chemical reaction of hydrolysing starch, a polymer of glucose, to maltose. Starch is a polysaccharide so basically the amylase enzyme breaks down this polysaccharide (many sugars) with the aid of water to disaccharide (two sugars).

7 0
3 years ago
Rank the order in which the earliest organisms evolved.
Black_prince [1.1K]

The order in which the earliest organisms evolved -

  • Archaea and bacteria
  • Protists
  • Fungi and shell-less invertebrates
  • Green algae
  • Shelled Invertebrates

On the earth, various kinds of organisms evolve at different geological times, and on their evolution, they consider the oldest or youngest organisms:

  • Archaebacteria and bacteria was the oldest living organism on earth was, they lacked a membrane-bound nucleus and cell.
  • The protists evolved after the bacteria, they were multicellular prokaryotic organisms.
  • Fungi and the shell-less invertebrate, much-developed organisms in terms of body organization and structure. These have membrane-bound, well-defined cell membranes, and a nucleus. They even had a tissue level of organization.
  • Green algae evolve after protists which belong to the division Thallophyta of the plant kingdom. These are photosynthetic as they have chlorophyll in the cell.
  • Shelled Invertebrates are the youngest organisms that evolved recently among these.

Thus, the correct order is -

  • Archaea and bacteria
  • Protists
  • Fungi and shell-less invertebrates
  • Green algae
  • Shelled Invertebrates

Learn more about geological time scale:

brainly.com/question/16528968

5 0
3 years ago
What two important factors determine the nature of an ecosystem?
Lelechka [254]
Temperature, and Humidity are the two important factors of an ecosystem 
4 0
3 years ago
Complete this vocabulary exercise relating to enzymes. Match the words in the left-hand column to the appropriate blank in the s
ANTONII [103]
1. Denatured
2. Catalyst
3. Specific
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8 0
3 years ago
HELP PLZZZ<br> how many amino acids are coded for the mRNA strand AUGCGAUACUGA
garri49 [273]

Answer:

4

Explanation:

Amino acids are coded for by codons, which are triplets of nucleotides.

To work out how many amino acids are present, simply divide the cells into triplets.

AUG CGA UAC UGA

There are four triplet codons, so the sequence codes for four amino acids.

8 0
3 years ago
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