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atroni [7]
3 years ago
9

Why was the evolution of cyanobacteria such a significant event in Earth's history

Biology
1 answer:
mestny [16]3 years ago
8 0

Explanation:

oxygen, a byproduct of that photosynthesis, was released into the atmosphere, changing it in such a way that it may have allowed the evolution of more complex forms of life.

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Describe the important properties/abilities of water that makes it biologically useful.
d1i1m1o1n [39]

Answer:

Answer

Explanation:

water is a polar solvent, water has the ability to ionize molecules, which is necessary for life, water has high specific heat.

4 0
3 years ago
Greatest diffrence between cells of a baby gorilla and the cells of an adult gorilla
Trava [24]

Answer:

That the adult has more cells than the baby?

Explanation:

Cells are the basic unit of structure and function in all living organisms. Which describes the GREATEST difference between the cells of a baby gorilla and the cells of an adult gorilla? The adult has more cells than the baby.

Sorry if its wrong

5 0
3 years ago
Dinitrophenol increases the permeability of the lipid bilayer of the inner mitochondrial membrane to protons. Assuming that all
Zigmanuir [339]

Answer:

The correct answer is : C .It will decrease ATP production because fewer protons will be able flow down through ATP synthase.

Explanation:

  • Oxidative Phosphorylation is a process which involves two steps:  
  1. Transport of electrons from the reduced compounds like NADH (Nicotinamide adenine dinucleotide hydrogen) and FADH₂ (Flavin adenine dinucleotide dihydrogen) through the electron transport complexes, located in the inner mitochondrial membrane, to oxygen for the generation of water molecules.
  2. Synthesis of ATP or adenosine triphosphate from ADP or adenosine diphosphate and inorganic phosphate by an enzyme called ATP synthase which is located in the inner mitochondrial membrane. This enzyme harnesses energy by carrying protons from the inter-membrane space into the mitochondrial matrix and in the process produces ATP.
  • Oxidative phosphorylation takes place in the mitochondria, especially involving the inter membrane space, inner membrane and mitochondrial matrix
  • During the transport of electrons through the protein complexes (I, II, III, IV) of the electron transport chain a proton gradient is generated across the inner mitochondrial membrane.
  • The proton gradient is such that the concentration of protons is more in the inter-membrane space and less in the matrix of the mitochondria.
  • This proton gradient provides the energy to the ATP synthase for the synthesis of ATP.
  • Dinitrophenol is responsible for making the inner mitochondrial membrane permeable to protons. As a result protons can directly diffuse through the inner mitochondrial membrane from the inter-membrane space into the mitochondrial matrix equalising the concentration of protons across the inner mitochondrial membrane. This causes distortion in the proton gradient.  Hence, protons are no longer available for the ATP synthase to operate and synthesise ATP.
4 0
3 years ago
Q40.is a proposed explanation for an observation.
Tcecarenko [31]

Answer:

C. Hypothesis

Explanation:

Hypothesis is a proposed explanation for a certain occurrence and when the explanation is conclusive, then it becomes a theory.

3 0
2 years ago
Why are the fields of science, technology, engineering, and math important in the modern world?
Katyanochek1 [597]

Explanation:

  1. This is 21st century .In this time our society as well as all of the world had become advanced and modern.So,in this time if we started to work without any technology then while working we need more manpower and our time will be loss.Science ,technology,engineering and maths play important role in modern world d .It helps in sustain able development and helps any country to be self dependent and makes profit by which Nations will be developed and it helps to win the future.
  2. Hope is useful for you.have a nice day.
4 0
3 years ago
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