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When the mitochondria lack adequate oxygen during activity, what product is formed from pyruvate?

erastovalidia [21]

Pyruvate undergoes fermentation if no oxygen is present. This is called anaerobic reaction. Can undergo lactic acid or alcoholic fermentation.

4 0

3 years ago

Bauxite is an ore that is mined extensively. What makes bauxite a valuable ore?

Lady_Fox [76]

Answer:

C

Explanation:

Bauxite is the most common aluminum ore. Approximately 98% of primary aluminum production is based on bauxite. In the former Soviet Union, aluinite and kaolinite are also used in small proportions for aluminum production. Bauxite is a naturally occurring, heterogeneous material composed primarily of one or more aluminum hydroxide minerals plus various mixtures of silica, iron oxide, titania, and other impurities in trace amounts. The principal aluminum hydroxide minerals found in varying proportions within bauxite are gibbsite (trihydrated) and boehmite and diaspore (both monohydrated). The content of aluminum oxide is 30–60%. Bauxite is generally extracted by open cast mining from strata, typically 4–6 m thick under a shallow covering of topsoil and vegetation (Table I).

6 0

3 years ago

List two natural disturbances and two human-made disturbances that can lead to succession

Delvig [45]

I think Cutting plants and Polluting

7 0

4 years ago

each of the following molecules is processed by glycolysis to pyruvate. how much net atp is generated starting with each molecul

ki77a [65]

From glucose $2$ ATPs are produced.

ATP:

One glucose molecule is divided into two pyruvate molecules during glycolysis, requiring two ATP molecules while generating four ATP molecules and two NADH molecules.
For the cell to utilize as energy, glycolysis results in a net gain of two pyruvate molecules, two ATP molecules, and two NADH molecules.
Glucose breaks down into pyruvate and energy during glycoses
From glucose 6- phosphate to lactate 3 ATPs are produced.
$4$ ATPs are generated from which one is utilized when fructose $6$ phosphate is converted to fructose $1, 6-$ bisphosphate. So the net yield is $3$ ATP.

From dihydroxyacetone phosphate 2 ATPs are produced.

As the cycle occurs only once either from DHAP or PGAL (glyceraldehyde $3-$ phosphate)

Three irreversible reactions of glycolysis:

Hexokinase

Glucose + ATP $\rightarrow$ Glucose $-6-$ phosphate + ADP

Phosphofructokinase-I

Fructose $-6-$ phosphate + ATP $\rightarrow$ Fructose $-1, 6-$ bisphosphate $+$ ADP

Pyruvate kinase

$\mathrm{PEP}+\mathrm{ADP} \rightarrow$ Pyruvate $+$ ATP

Learn more about ATP here brainly.com/question/19786223

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4 0

2 years ago

In a population of 150 toads, poisonous (P) is dominant over non-poisonous (p). According to the Hardy-Weinberg equation, the ex

aalyn [17]

Answer: Χ²=8.18

Explanation: In this population, the frequency of homozygote poisonous toads is:

$p^{2} =\frac{100}{150}$

$p^{2} = 0.667$

$p = \sqrt{0.667}$

p=0.82

For the homozygote non-poisonous toads:

$q^{2} = \frac{5}{150}$

$q^{2} =0.034$

$q = \sqrt{0.034}$

q = 0.18

The frequency for heterozygote poisonous toad, we can use the Hardy-Weinberg equation: $p^{2} + 2pq + q^{2} = 1$ , in which, heterozygote frequency is given by 2pq