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4 years ago

Compare and contrast fermentation and cellular respiration (at least 2 similarities and 2 differences explained in detail).

1 answer:

8 0

They're similar because they're both methods the cell uses to make ATP. ... Fermentation takes place without oxygen (also known as anaerobic), so less ATP is produced from each molecule of glucose. Another difference is that the byproducts of cellular respiration are always water and carbon dioxide.

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3 years ago

How is enthalpy used to predict whether a reaction is endothermic or exothermic?

Radda [10]

Answer:

$329.48 KJ/mol$ heat is released by the combustion of $2 mol$ of methane

Explanation:

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

$2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)$

$\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]$

= $2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]$

$= -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]$

$= -787 KJ/mol+1116.48 KJ/mol$

$=329.48 KJ/mol$

In this question, the enthalpy of formation has positive value and hence the reaction is endothermic in which the heat is released.

3 0

3 years ago

What is the cellular make-up of animalia

ivann1987 [24]

Answer:

The kingdom Animalia, or Metazoa, includes all animals. Animals are multicellular, eukaryotic organisms, which are heterotrophic, meaning they obtain nutrition from organic sources.

Explanation:

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4 years ago

The strand of dna for a particular gene that is copied by the rna polymerase to form mrna is called the __________ strand.

lukranit [14]

This is called a template strand because it is used as a "template"

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3 years ago

A population ecologist determines the number of oak trees per square unit in a forest. What is he trying to infer by doing so?.

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The answer is letter C. The distribution of oak trees in an area.

Population Ecologist would often measure the number distribution and density of the area. Trees are often measured by plots or by hectares. This is to know how many trees are situated in that area.

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3 years ago