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Alexus [3.1K]
3 years ago
10

Nearly all of the oxygen carried by blood is bound to _____ an iron-containing protein that gives red blood cells their color.

Biology
1 answer:
stira [4]3 years ago
6 0
Most of the oxygen carried by blood is bound to hemoglobin an iron containing protein which also gives red blood cells their distinctive red colour
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What can scientists observe over long periods of time to determine the patterns in climate change?
Jobisdone [24]

Answer:

The physical and biological changes that confirm climate warming include the rate of retreat in glaciers around the world, the intensification of rainfall events, changes in the timing of the leafing out of plants and the arrival of spring migrant birds, and the shifting of the range of some species.

Explanation:

6 0
2 years ago
When NADH is the electron donor to the respiratory chain, 2.5 ATP are formed, but when FADH2 is the electron donor, only 1.5 ATP
Fofino [41]

Answer:NADH donates it electron to complex I a higher energy level than other complexes while FADH donates it electron to complex II a lower energy complex.

Explanation:

Both NADH and FADH are shuttle of high energy electrons originally extracted from food into the inner mitochondrial membrane.

NADH donate it electron to a flavoprotein consisting of FMN prosthetic group and an iron-sulphur protein in ETC complex-I. Two electrons and one hydrogen ion are are transferred from NADH to the flavin prosthetic group of the enzyme.

While the electrons from FADH2 enters the ETC (electron transport chain) at the level of co-enzyme Q (complex II). This step does not librate enough energy to act as a proton pump.

So NADH produces 2.5 ATP during the ETC and oxidative phosphorylation because it donates its electron to Complex I, which pump more electrons across the membrane than other complexes.

5 0
3 years ago
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In a plant with genotype Gg for pod color, what percentage of the gametes will have:
Murljashka [212]

Answer: dominant allele will be green seeded and the ressecieve allele will be yellow seeded

Explanation:

5 0
2 years ago
Why is it safe to put sodium chloride on fish and chips but not safe to use sodium and chloride?​
damaskus [11]

Answer:

You can't put sodium metal and chlorine gas on your fish and chips.

Explanation:

Sodium is an electron rich metal. Chlorine is an oxidizing gas. Put them together, and they form a salt, a compound of a metal and a non-metal. Hope it helped!!

8 0
3 years ago
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Which organism obtains its energy from other organisms?
Lina20 [59]

Answer:

B. cougar

Hope it helps! Ask me if you have doubts.

7 0
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