Q: A solution has a hydrogen ion concentration of $$[H^+] = 1 \times 10$$^{-5}$$\ \mathrm{M}. $$What is the pH of this solution?

$$\mathrm{pH} = -\log_{10}(1 \times 10$$^{-5}$$) = 5$$

Question 1

Which of the following statements correctly describes the arrangement of subatomic particles in a neutral atom of carbon-14 ($$^{14}\mathrm{C}$$)?

Accepted Answer

Protons and neutrons are located in the nucleus, while electrons orbit the nucleus in energy shells.

Question 2

A solution has a hydrogen ion concentration of $$[H^+] = 1 	imes 10$$^{-5}$$\ \mathrm{M}. $$What is the pH of this solution?

Accepted Answer

$$\mathrm{pH} = -\log_{10}(1 	imes 10$$^{-5}$$) = 5$$

Question 3

Which functional group is present in all amino acids and is responsible for their acidic properties?

Accepted Answer

Carboxyl group ($$-\mathrm{COOH})$$

Question 4

Which of the following correctly matches a biological macromolecule with its monomer?

Accepted Answer

Protein – Amino acid

Question 5

A cell is placed in a solution with a higher solute concentration than its cytoplasm. What will happen to the cell?

Accepted Answer

Water will move out of the cell, causing it to shrink (crenate).

Question 6

Which organelle is primarily responsible for the production of ATP through cellular respiration in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 7

The graph of a chemical reaction shows the energy of reactants at a higher level than the energy of products. What does this indicate about the reaction?

Accepted Answer

The reaction is exergonic and releases energy.

Question 8

During glycolysis, which of the following are the net products generated from one molecule of glucose?

Accepted Answer

2 ATP, 2 NADH, and 2 pyruvate

Question 9

Where in the chloroplast does the Calvin cycle take place?

Accepted Answer

Stroma

Question 10

If a diploid cell with 8 chromosomes undergoes meiosis, how many chromosomes will each resulting gamete contain?

Accepted Answer

4

Question 11

In a monohybrid cross between two heterozygous pea plants ($$Tt 	imes Tt$$), what is the expected phenotypic ratio of tall to short offspring if tall is dominant?

Accepted Answer

3:1

Question 12

Which of the following best describes the structure of DNA?

Accepted Answer

A double helix with antiparallel sugar-phosphate backbones

Question 13

Given the DNA template strand $$5'	ext{-}ATGCGTACG-3'$$, what is the sequence of the complementary mRNA produced during transcription?

Accepted Answer

$$3'	ext{-}UACGCAUGC-5'$$

Question 14

Which component of the translation machinery is responsible for bringing amino acids to the ribosome?

Accepted Answer

tRNA

Question 15

A patient is given an intravenous solution that is hypotonic relative to their blood plasma. What is the most likely effect on their red blood cells?

Accepted Answer

The cells will swell and may burst due to water influx.

Question 16

Which of the following best describes the difference between a gene and an allele?

Accepted Answer

A gene is a segment of DNA that codes for a trait, while an allele is a variant form of that gene.

Question 17

Which of the following is a correct statement about the endoplasmic reticulum (ER)?

Accepted Answer

The rough ER is studded with ribosomes and is involved in protein synthesis.

Question 18

A person with type AB blood expresses both A and B antigens on their red blood cells. What type of inheritance is this an example of?

Accepted Answer

Codominance

Question 19

Which of the following best describes the function of lysosomes in animal cells?

Accepted Answer

They contain hydrolytic enzymes for intracellular digestion.

Question 20

If a DNA molecule contains 30% adenine, what percentage of guanine would you expect to find?

Accepted Answer

20%

BIOL 1201 Final Exam Study Guide: Key Concepts and Applications

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