Question 1

If an atom of sulfur (atomic number 16) were allowed to react with atoms of hydrogen (atomic number 1), which of the molecules below would be formed?

Accepted Answer

B

Question 2

In ammonium chloride salt (NH₄Cl) the anion is a single chloride ion, Cl-. What is the cation of NH₄Cl?

Accepted Answer

The cation in ammonium chloride is the ammonium ion, NH₄⁺, which carries a charge of +1.

Question 3

Which one of the atoms shown would be most likely to form a cation with a charge of +1?

Accepted Answer

A

Question 4

Which one of the atoms shown would be most likely to form an anion with a charge of -1?

Accepted Answer

The answer of Which one of the atoms shown would...

Question 5

Which of the following pairs of atoms would be most likely to form a covalent bond?

Accepted Answer

The answer of Which of the following pairs of atoms...

Question 6

Which of the following pairs of atoms would be most likely to form an ionic bond?

Accepted Answer

The answer of Which of the following pairs of atoms...

Question 7

A given solution contains 0.0001(10^-⁴) moles of hydrogen ions [H⁺] per liter. Which of the following best describes this solution?

Accepted Answer

The solution has a pH of 4 (since pH = -log[H+]), which is less than 7, indicating it is acidic. An acidic solution donates H+ ions.

Question 8

Carbon dioxide (CO₂) is readily soluble in water, according to the equation CO₂ + H₂O $ \rightarrow$ H₂CO₃. Carbonic acid (H₂CO₃) is a weak acid. If CO₂ is bubbled into a beaker containing pure, freshly-distilled water, which of the following graphs correctly describes the results?

Accepted Answer

The answer of Carbon dioxide (CO₂) is readily soluble in...

Question 9

Carbon dioxide (CO₂) is readily soluble in water, according to the equation CO₂ + H₂O $ \rightarrow$ H₂CO₃. Carbonic acid (H₂CO₃) is a weak acid. Respiring cells release CO₂. What prediction can we make about the pH of blood as that blood first comes in contact with respiring cells?

Accepted Answer

As CO2 is released by respiring cells and dissolves in blood, it forms carbonic acid, which slightly lowers the pH of the blood.

Question 10

Which of the pairs of molecular structures shown below depict enantiomers (enantiomeric forms) of the same molecule?

Accepted Answer

The answer of Which of the pairs of molecular structures...

Question 11

Which of the pairs of molecular structures shown below do NOT depict enantiomers (enantiomeric forms) of the same molecule?

Accepted Answer

The answer of Which of the pairs of molecular structures...

Question 12

Identify the asymmetric carbon in this molecule:

Accepted Answer

The answer of Identify the asymmetric carbon in this molecule:
...

Question 13

For the following questions, match the labeled component of the cell membrane (Figure 7.1) with its description.
  Figure 7.1
-peripheral protein

Accepted Answer

The answer of For the following questions, match the labeled...

Question 14

For the following questions, match the labeled component of the cell membrane (Figure 7.1) with its description.
  Figure 7.1
-cholesterol

Accepted Answer

The answer of For the following questions, match the labeled...

Question 15

-The tRNA shown in Figure 17.4 has its 3$\prime$end projecting beyond its 5$\prime$ end. What will occur at this 3$\prime$ end?

Accepted Answer

The 3' end of the tRNA is where the amino acid is covalently attached, forming an aminoacyl-tRNA.

Question 16

Review the roles of RNA by filling in the following table:

Accepted Answer

The answer of Review the roles of RNA by filling...

Question 17

Exponential growth of a population is represented by dN/dt =

Accepted Answer

Exponential growth of a population is represented by the equation dN/dt = rN, where r is the intrinsic rate of increase and N is the population size.

Question 18

Logistic growth of a population is represented by dN/dt =

Accepted Answer

The logistic growth model is represented by the equation $ dN/dt = rN \frac{(K-N)}{K} $, where $ r $ is the intrinsic growth rate, $ N $ is the population size, and $ K $ is the carrying capacity. This equation accounts for the slowing of growth as the population approaches the carrying capacity.

Question 19

Which of the following graphs refer to this equation?
$ \frac{d N}{d t}=0.5 \mathrm{~N} $

Accepted Answer

The answer of Which of the following graphs refer to...

Question 20

Which of the following graphs illustrates the growth curve of a small population of rodents that has grown to reach a static carrying capacity?

Accepted Answer

The answer of Which of the following graphs illustrates the...

Quiz 1: The Chemical Context of Life, Population Ecology, Genomes and Their Evolution

If an atom of sulfur (atomic number 16) were allowed to react with atoms of hydrogen (atomic number 1) , which of the molecules below would be formed?

In ammonium chloride salt (NH₄Cl) the anion is a single chloride ion, Cl-. What is the cation of NH₄Cl?

Which one of the atoms shown would be most likely to form a cation with a charge of +1?

Which one of the atoms shown would be most likely to form an anion with a charge of -1?

Which of the following pairs of atoms would be most likely to form a covalent bond?

Which of the following pairs of atoms would be most likely to form an ionic bond?

A given solution contains 0.0001(10^-⁴) moles of hydrogen ions [H⁺] per liter. Which of the following best describes this solution?

Carbon dioxide (CO₂) is readily soluble in water, according to the equation CO₂ + H₂O $\rightarrow$ H₂CO₃. Carbonic acid (H₂CO₃) is a weak acid. If CO₂ is bubbled into a beaker containing pure, freshly-distilled water, which of the following graphs correctly describes the results?

Carbon dioxide (CO₂) is readily soluble in water, according to the equation CO₂ + H₂O $\rightarrow$ H₂CO₃. Carbonic acid (H₂CO₃) is a weak acid. Respiring cells release CO₂. What prediction can we make about the pH of blood as that blood first comes in contact with respiring cells?

Which of the pairs of molecular structures shown below depict enantiomers (enantiomeric forms) of the same molecule?

Which of the pairs of molecular structures shown below do NOT depict enantiomers (enantiomeric forms) of the same molecule?

Identify the asymmetric carbon in this molecule:

For the following questions, match the labeled component of the cell membrane (Figure 7.1) with its description. Figure 7.1 -peripheral protein

For the following questions, match the labeled component of the cell membrane (Figure 7.1) with its description. Figure 7.1 -cholesterol

Review the roles of RNA by filling in the following table:

Exponential growth of a population is represented by dN/dt =

Logistic growth of a population is represented by dN/dt =

Which of the following graphs refer to this equation? $\frac{d N}{d t}=0.5 \mathrm{~N}$

Which of the following graphs illustrates the growth curve of a small population of rodents that has grown to reach a static carrying capacity?

Quiz 1: The Chemical Context of Life, Population Ecology, Genomes and Their Evolution

If an atom of sulfur (atomic number 16) were allowed to react with atoms of hydrogen (atomic number 1) , which of the molecules below would be formed?

In ammonium chloride salt (NH4 Cl) the anion is a single chloride ion, Cl-. What is the cation of NH4 Cl?

Which one of the atoms shown would be most likely to form a cation with a charge of +1?

Which one of the atoms shown would be most likely to form an anion with a charge of -1?

Which of the following pairs of atoms would be most likely to form a covalent bond?

Which of the following pairs of atoms would be most likely to form an ionic bond?

A given solution contains 0.0001(10-4) moles of hydrogen ions [H+] per liter. Which of the following best describes this solution?

Carbon dioxide (CO2) is readily soluble in water, according to the equation CO2 + H2O → \rightarrow→ H2CO3. Carbonic acid (H2CO3) is a weak acid. If CO2 is bubbled into a beaker containing pure, freshly-distilled water, which of the following graphs correctly describes the results?

Carbon dioxide (CO2) is readily soluble in water, according to the equation CO2 + H2O → \rightarrow→ H2CO3. Carbonic acid (H2CO3) is a weak acid. Respiring cells release CO2. What prediction can we make about the pH of blood as that blood first comes in contact with respiring cells?

Which of the pairs of molecular structures shown below depict enantiomers (enantiomeric forms) of the same molecule?

Which of the pairs of molecular structures shown below do NOT depict enantiomers (enantiomeric forms) of the same molecule?

Identify the asymmetric carbon in this molecule:

For the following questions, match the labeled component of the cell membrane (Figure 7.1) with its description. Figure 7.1 -peripheral protein

For the following questions, match the labeled component of the cell membrane (Figure 7.1) with its description. Figure 7.1 -cholesterol

-The tRNA shown in Figure 17.4 has its 3 ′\prime′ end projecting beyond its 5 ′\prime′ end. What will occur at this 3 ′\prime′ end?

Review the roles of RNA by filling in the following table:

Exponential growth of a population is represented by dN/dt =

Logistic growth of a population is represented by dN/dt =

Which of the following graphs refer to this equation? dNdt=0.5 N \frac{d N}{d t}=0.5 \mathrm{~N} dtdN​=0.5 N

Which of the following graphs illustrates the growth curve of a small population of rodents that has grown to reach a static carrying capacity?

In ammonium chloride salt (NH₄Cl) the anion is a single chloride ion, Cl-. What is the cation of NH₄Cl?

A given solution contains 0.0001(10^-⁴) moles of hydrogen ions [H⁺] per liter. Which of the following best describes this solution?

Carbon dioxide (CO₂) is readily soluble in water, according to the equation CO₂ + H₂O $\rightarrow$ H₂CO₃. Carbonic acid (H₂CO₃) is a weak acid. If CO₂ is bubbled into a beaker containing pure, freshly-distilled water, which of the following graphs correctly describes the results?

Carbon dioxide (CO₂) is readily soluble in water, according to the equation CO₂ + H₂O $\rightarrow$ H₂CO₃. Carbonic acid (H₂CO₃) is a weak acid. Respiring cells release CO₂. What prediction can we make about the pH of blood as that blood first comes in contact with respiring cells?

Which of the following graphs refer to this equation? $\frac{d N}{d t}=0.5 \mathrm{~N}$