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Ira Lisetskai [31]
3 years ago
11

What three conditions did the earliest bacteria need for energy production?

Biology
2 answers:
adell [148]3 years ago
8 0

Answer:

Oxygen (O2) concerntration

Temperature

pH

erma4kov [3.2K]3 years ago
6 0

Answer:

Light, water, and carbon dioxide

Explanation:

Bacteria are the oldest beings on Earth and are present almost everywhere - air, water, soil, air, dust and even volcanoes; and for that reason they are considered the most abundant living beings on the planet. Many people believe that bacteria only cause disease, but there are many bacteria that are used by man for beneficial things like lactobacilli, for example.

The first bacteria were very important for creating the atmosphere we know. These bacteria produced energy through light, water and carbon dioxide.

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What are the similarities and differences between carrier proteins and channel proteins​
kvv77 [185]
* Channel proteins- these are proteins with a hydrophilic pore where specific ions are able to pass through the membrane. Each channel protein is specific to an ion. This is the only way ions can travel through the membrane. They are trans membrane proteins.

* Carrier proteins- these are proteins which allow larger or polar molecules through the membrane. They are trans membrane proteins.

Carrier proteins essentially “carry" signals that are not soluble in aqueous solution through the blood stream to their target cells. Carrier proteins for hydrophilic signals prevent degradation of the signal. Channel proteins are embedded in cell membranes. They often are receptors (though not always), and when activated, allow specific ions to pass through the membrane.

A channel protein is a special arrangement of amino acids which embeds in the cell membrane, providing a hydrophilic passageway for water and small, polar ions. Like all transport proteins, each channel protein has a size and shape which excludes all but the most specific molecules

The carrier protein facilitate diffusion of molecules across the cell membrane. The protein is imbedded in the cell membrane and covers the entire membrane. This is important because the carrier must transport the molecule in and out of the cell.
3 0
3 years ago
During photosynthesis, the light energy from the sun is captured and stored in the bonds of _____. 1. oxygen 2. water 3. sugars
Veronika [31]

Answer:

The correct answer is 3. sugars

Explanation:

During photosynthesis, the light energy is captured by the chlorophyll and this energy is used in the formation of sugar molecules with the help of water. Oxygen is released as the byproduct of this process.

So the light energy which is captured is stored in the bonds of sugar and when this bond is broken down during oxidation the energy is released and converted into another form which is ATP and this ATP is called the energy currency of the cell. This ATP is used in many metabolic processes. Therefore the correct answer is sugar.

4 0
3 years ago
What advantage is there in having the special sensory organs confined to the head region?
Dmitriy789 [7]
The answer to this question would be: rapid impulse transmission. 

By having organ near the head, the brain can process the information faster because the length of the nerve that carries the impulse from organ would be much shorter. The nerve also at lower risk of damage since it was shorter.
But it makes the head very important and damage to the head can cause much more problem than any part of the body.
3 0
3 years ago
Read 2 more answers
Eric places some room-temperature strawberries into his freezer. Which of the following correctly describes what happens to the
Arisa [49]

Answer:

The heat from the strawberries transfers to the freezer and causes the strawberries to freeze.

Explanation:

When Eric-palces some room temperature strawberries into the freezer, he is changing the temeprature of the strawberries. When the strawberries are in the room tempertaure, they are absorbing certain amount of heat.

When they are placed in the freezer they are releasing the heat to the environment and this leads to condition called as phase change. Due to this phenomenon, the heat from the strawberries transfers to the freezer and causes the strawberries to freeze.

5 0
3 years ago
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a habitat that has lots of light and water a high elevation low temperatures and a low level of oxygen is most likley a
marusya05 [52]
The answer is <u>High </u><u>Mountain</u>  <span />
8 0
3 years ago
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