Question

1.What are the products of glycolysis when yeast ferment?

• ATP and glucose
• CO2 and alcohol
• pyruvates and ATP

2. Leaded gasoline, originally developed to decrease pollution, is now banned
because the lead(II) bromide, PbBr₂, emitted when it burns decomposes in the
atmosphere into two serious pollutants, lead and bromine. Determine the oxidation number for each atom in the equation.

• Pb and Br2 are 0; and PbBr2 are +2 and -1 respectively
• only the diatomic molecule has an oxidation number of zero
• all have an oxidation number of zero

3.Which molecule can replicate, transcribe and translate?

• DNA
• RNA
• ATP

4.Classify the following rxn:

Na + OH goes to NaOH

• Decomposition
• Precipitation
• double displacement

5.The only way a recessive phenotype can be expressed is if:

• you have a homozygous recessive genotype
• you have heterozygous recessive genotype
• you have a homozygous dominant genotype

6. mRNA is _____into protein.

• Translated
• replicated
• transcribed

7. GMO foods can be grown hanging upside down in a greenhouse because:

- their DNA has been altered

- air contains all of the nutrients needed for growth

- the weather is always perfect in a greenhouse

8. In the DNA molecule, guanine binds to _____according to Chargaff’s rules.

- uracil

- cysteine

- thymine

9. Carbon dioxide is a reactant in:

-replication

- photosynthesis

- fermentation

10. Predict whether a precipitate will form when water solutions of silver nitrate and sodium phosphate are mixed.

- Ag3PO4

- 3AgNO3

- Na3PO4

- 3NaNO3

Answer 1

Following is the - complete Answer -&- Explanation: for the Questions: 1 , 3 , 4 and 6 , in...typed format...

$\Rightarrow$Answer(s):

1. question - 1: Option - 2: CO₂ and alcohol
2. question - 3: Option - 2: RNA is the molecule, which can translate, transcribe and replicate
3. question - 4: Option - 1: Decomposition reaction.
4. question - 6: Option - 1: mRNA is translated: into protein...

$\Rightarrow$Explanation:

Following is the complete Explanation: for the above: Answers.

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$\Rightarrow$Question - 1:

Since, yeast fermentation: is an example of anaerobic: and alcohol fermentation: during the glycolysis: of yeast: pyruvate further undergoes dissociation: and converts into and produces: CO₂  and ethyl alcohol, as products.

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$\Rightarrow$Question - 3:

RNA is the only molecule, among the rest of the given molecules: which can: translate, transcribe, and replicate.

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$\Rightarrow$Question - 4:

When: Na⁺reacts with OH^-  , they can have the following chemical reaction: which would be reversible, and therefore: these ions will react to form : NaOH, as the following:

$\Rightarrow$Na⁺ + OH^- $\rightleftharpoons$ NaOH

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$\Rightarrow$Question - 6:

mRNA, gets translated, ( i.e. gets decoded ) , into proteins.

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