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serious [3.7K]
4 years ago
10

How do cells get atp, the energy currency that does work in living things

Biology
1 answer:
Sav [38]4 years ago
7 0
Cells make ATP through cellular respiration, which concludes glycolysis, the krebs cycle, and the electron transport chain. it mostly takes place in the mitochondria.
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2 The chemical symbol for the element calcium is Ca. What would be the symbol representing calcium atoms that have lost two elec
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Ca+2 , the plus 2 indicates the loss of 2 electrons
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3 years ago
Describe the functions of the four photoreceptor proteins in human vision.
VLD [36.1K]

Answer:

In human vision, the cone visual opsins are grouped into four photoreceptor protein families LWS, SWS1, SWS2, RH2 .

  • SWS1: produce pigments sensitive to very short wavelengths, UV-violet, 360-450 nm.

  • SWS2: produce pigments sensitive to short wavelengths, blue, 450-495 nm

  • RH2: produce pigments sensitive to medium wavelengths, green, 495-560 nm

  • LWS: produce pigments sensitive to long wavelengths, yellow-red, 560-770nm.

Explanation:

Photoreceptor proteins are light-sensitive proteins that mediate light-induced signal transduction, thus they are involved in the sensing and response to light in a variety of organisms.

The photoreceptor proteins are classified based on the chemical structure of the chromophores involved, the light absorption and on the protein sequence.

This photoreceptor proteins are located at the cone photoreceptor cells and are responsible of photopic vision.

For scotopic vision, rhodopsin is responsible. Rhodopsins are the visual pigments (visual purple) of the rod photoreceptor cell in the retina. They are responsible of human vision in dim light, as it contains a sensory protein that converts light into an electric signal.  

3 0
3 years ago
3. There was a drop in the rate of motor vehicle deaths between 1950 and 1975 and then again between
Luba_88 [7]
Seat belts and airbags were inserted into cars around the time of the late 1950s so the rate of death during a car accident would decrease because people are more likely to survive. And then in 1991 Side Impact Protection System (SIPS) was placed into cars again reducing fatalities during a car incident as people became more protected. :)
6 0
3 years ago
Even though each body cell is an individual contains the same DNA, the function of muscle cells and liver cells are not the same
kirza4 [7]
Since biochemical function is determined largely by specific enzymes (proteins), different sets of genes must be turned on and off in the various cell types. This is how cells differentiate.
6 0
4 years ago
Read 2 more answers
He lock-and-key mechanism refers to
devlian [24]

The lock-and-key mechanism was first proposed by Emil Fischer which described as the enzymatic reactions whereby an enzyme with a single substrate binds temporarily to form a substrate complex. Just like a lock and key the enzyme as the lock and the substrate as the key is said to fit together

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3 years ago
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