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USPshnik [31]
3 years ago
14

What is cyclic about the reactions that make up the Krebs cycle?

Biology
2 answers:
avanturin [10]3 years ago
7 0
In the Kreb cycle, energy is needed so D is wrong. The first reactant and last product are the same which causes it to be cyclic so the answer is C
Alchen [17]3 years ago
4 0

Answer:

The correct answer would be C. The first reactant and last product are the same.

Cyclic reactions are the reactions in which the reactant is regenerated at the end of process in order to repeat the reaction again.

For example, in Krebs cycle oxaloacetate is the reactant used in the first step of the cycle. It accepts acetyl group of acetyl-CoA to form citrate. Citrate then undergoes various steps to produce carbon dioxide (waste product), NADH, and GTP.

Oxaloacetate is then regenerated at the last step of the cycle where malate is dehydrogenated to form oxaloacetate with the help of malate dehydrogenase.  It also results in the formation of NADH + H⁺ from NAD⁺.

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Help me with this question pleasee!!!!
dem82 [27]

Answer:

seedless plants do not bear seeds for propagation, whereas seed plants bear seeds for multiplication.

Explanation:

The difference between seed plants and seedless plants is that seedless plants do not bear seeds for propagation, whereas seed plants bear seeds for multiplication. The plant kingdom is traditionally divided into four main divisions, i.e Thallophyta, Bryophyta, Pteridophyta and Spermatophyta

The sporophyte is the dominant generation, but multicellular male and female gametophytes are produced within the flowers of the sporophyte.

In many plants, the sporophyte generation is the dominant generation. This means that the sporophyte is larger and lives longer than the gametophyte generation.

hope it helps you

have a great day!

regards

6 0
2 years ago
Which of the following is true about microorganisms?
Elden [556K]

they all have cells and dna

4 0
3 years ago
Which statement describes a difference between the lower mantle and oceanic crust? O The lower mantle is closer to Earth's surfa
tatuchka [14]

Explanation:

The difference between the lower mantle and the oceanic crust is first their respective locations, pressure and temperature-- the pressure and temperature increases with depth in the earth this the mantle is more hot and under great pressure than the crust. hope this helps

6 0
3 years ago
Read 2 more answers
1) How many structures are possible for a square planar molecule with a formula of AX2Y2?
aalyn [17]
Only two <span>structures are possible for a square planar molecule with a formula of AX2Y2.
Those two structures are CIS and TRANS structures.
</span>If two groups attached to the carbons of the double bond are on the same side of the double bond, they are considered<span> </span>cis<span> alkene but if they lie on opposite sides of the double bond, they are </span>trans<span> .</span><span>
Hope it helps.</span>
6 0
4 years ago
When brewing alcohol why is it important to prevent entry of oxygen to the fermentation vats?
Ratling [72]

Answer:

because this can introduce pathogens

Explanation:

pathogens that disrupt the fermentation such as bacteria and other fungus

5 0
3 years ago
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