Question 1

Use the following to answer questions:
Match the substance with the MOST appropriate characteristic in the list below.
-ribosomal RNA ___
A)contains degrading enzymes; stores and moves wastes
B)contains genetic code for proteins
C)protein molecule assembly site
D)builds proteins

Accepted Answer

D

Question 2

Use the following to answer questions:
Match the part of the neuron with the MOST appropriate function from the list below.
-terminal buttons ___
A)carries information to terminal buttons
B)collects information
C)integrates information
D)sends information to another neuron

Accepted Answer

The terminal buttons are responsible for sending information to another neuron or muscle fiber.

Question 3

Match each ion with the MOST appropriate characteristic.
-A- ___
A)depolarization
B)protein anions (molecules)
C)hyperpolarization
D)maintains resting potential

Accepted Answer

Protein anions (molecules) are large, negatively charged ions that cannot easily pass through the cell membrane, thus they play a significant role in maintaining the cell's resting potential by contributing to the negative charge inside the cell.

Question 4

Use the following to answer questions:
Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below.
-microtubules ___
A)energy source
B)protein transport
C)degrades foreign substances
D)protein formation

Accepted Answer

Microtubules are responsible for protein transport within cells. They provide the tracks or scaffold on which molecular motor proteins can travel, allowing materials to be moved to where they are needed within the cell.

Question 5

Use the following to answer questions:
Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below.
-mitochondria ___
A)energy source
B)protein transport
C)degrades foreign substances
D)protein formation

Accepted Answer

Mitochondria are often called the "powerhouses" of the cell because they are responsible for producing most of the cell's energy in the form of ATP (adenosine triphosphate).

Question 6

Match each ion with the MOST appropriate characteristic.
-ClS1U1P1-S1S1P0 influx ___
A)depolarization
B)protein anions (molecules)
C)hyperpolarization
D)maintains resting potential

Accepted Answer

The influx of Cl- and ions would result in hyperpolarization, meaning an increase in membrane potential away from the threshold for action potential. This is because Cl- is negatively charged and would make the inside of the cell more negative, while has a net negative charge and would also contribute to the negative charge inside the cell. Answer: D The influx of ^{- ions would help to maintain the resting potential of the cell. This is because ^{- is a negatively charged ion, and would help to balance out the positive charges on the outside of the cell membrane, which contributes to the resting membrane potential.

Answer: A
The influx of Cl- ions would result in depolarization, a decrease in membrane potential towards the threshold for action potential. This is because Cl- is negatively charged and would make the inside of the cell less negative, bringing it closer to the positive charge on the outside of the cell membrane.}}

Question 7

Identify the main function for each of the following: mitochondria, tubules, endoplasmic reticulum, Golgi body, and lysosomes.

Accepted Answer

The answer of Identify the main function for each of...

Question 8

Use the following to answer questions:
Match the substance with the MOST appropriate characteristic in the list below.
-DNA ___
A)contains degrading enzymes; stores and moves wastes
B)contains genetic code for proteins
C)protein molecule assembly site
D)builds proteins

Accepted Answer

DNA contains the genetic code for proteins.

Question 9

Use the following to answer questions:
Match the substance with the MOST appropriate characteristic in the list below.
-lysosomes ___
A)contains degrading enzymes; stores and moves wastes
B)contains genetic code for proteins
C)protein molecule assembly site
D)builds proteins

Accepted Answer

Lysosomes contain degrading enzymes and are responsible for storing and moving wastes within a cell. They do not have any involvement in protein synthesis or contain genetic code.

Question 10

Use the following to answer questions:
Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below.
-messenger RNA ___
A)energy source
B)protein transport
C)degrades foreign substances
D)protein formation

Accepted Answer

Messenger RNA (mRNA) is responsible for carrying the genetic information from DNA to ribosomes, where it is then used to synthesize proteins. Therefore, the most appropriate function for messenger RNA is protein formation (choice D).

Question 11

Match each ion with the MOST appropriate characteristic. -Na⁺ ___ A)depolarization B)protein anions (molecules) C)hyperpolarization D)maintains resting potential

Accepted Answer

Na+ ions are primarily responsible for the depolarization phase of the action potential in neurons, where they rush into the cell, reducing the membrane potential difference and causing the interior to become less negative compared to the outside.

Question 12

Use the following to answer questions:
Match the part of the neuron with the MOST appropriate function from the list below.
-axon hillock ___
A)carries information to terminal buttons
B)collects information
C)integrates information
D)sends information to another neuron

Accepted Answer

The axon hillock is the region where the axon of the neuron originates from the cell body. It is responsible for integrating the information collected by the dendrites and determining whether or not to transmit an action potential down the axon.

Question 13

Use the following to answer questions:
Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below.
-lysosomes ___
A)energy source
B)protein transport
C)degrades foreign substances
D)protein formation

Accepted Answer

Lysosomes are responsible for degrading foreign substances, such as bacteria or old organelles, using hydrolytic enzymes. They also play a role in autophagy, the process through which cells recycle their own components. They are not an energy source, involved in protein transport, or involved in protein formation.

Question 14

Draw a simple diagram of a phospholipid bilayer, with "heads" and "tails" properly oriented.

Accepted Answer

The answer of Draw a simple diagram of a phospholipid...

Question 15

Draw a representative neuron and identify the following components: dendrites, cell body, nucleus, axon hillock, axon, axon collateral, teleodendria, terminals, nodes of Ranvier, and myelin sheath.

Accepted Answer

The answer of Draw a representative neuron and identify the...

Question 16

Match each ion with the MOST appropriate characteristic. -NA⁺-K⁺ pump ___ A)depolarization B)protein anions (molecules) C)hyperpolarization D)maintains resting potential

Accepted Answer

The NA+, K+, and Cl- pump (sodium-potassium pump) maintains the resting potential of the cell by pumping out sodium ions and pumping in potassium ions, thus contributing to the negative charge inside the cell. The other choices (A, B, and C) are not characteristic of this specific pump.

Question 17

Use the following to answer questions:
Match the part of the neuron with the MOST appropriate function from the list below.
-axon ___
A)carries information to terminal buttons
B)collects information
C)integrates information
D)sends information to another neuron

Accepted Answer

The axon carries information away from the cell body and towards the terminal buttons which connect to other neurons.

Question 18

Use the following to answer questions:
Match the substance with the MOST appropriate characteristic in the list below.
-endoplasmic reticulum ___
A)contains degrading enzymes; stores and moves wastes
B)contains genetic code for proteins
C)protein molecule assembly site
D)builds proteins

Accepted Answer

The endoplasmic reticulum is the site of protein molecule assembly. It is responsible for folding and modifying newly synthesized proteins before they are transported to their final destination. It does not contain degrading enzymes, genetic code for proteins or build proteins itself.

Question 19

Use the following to answer questions:
Match the part of the neuron with the MOST appropriate function from the list below.
-dendrites ___
A)carries information to terminal buttons
B)collects information
C)integrates information
D)sends information to another neuron

Accepted Answer

Dendrites are the part of the neuron that collect information from other neurons and receive signals.

Question 20

Explain how communication within the nervous system is electrochemical in nature.

Accepted Answer

The answer of Explain how communication within the nervous system...

Quiz 4: Extension: B - the Structure and Electrical Activity of Neurons

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -ribosomal RNA ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -terminal buttons ___

Match each ion with the MOST appropriate characteristic. -A- ___

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -microtubules ___

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -mitochondria ___

Match each ion with the MOST appropriate characteristic. -Cl^- influx ___

Identify the main function for each of the following: mitochondria, tubules, endoplasmic reticulum, Golgi body, and lysosomes.

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -DNA ___

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -lysosomes ___

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -messenger RNA ___

Match each ion with the MOST appropriate characteristic. -Na⁺ ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -axon hillock ___

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -lysosomes ___

Draw a simple diagram of a phospholipid bilayer, with "heads" and "tails" properly oriented.

Draw a representative neuron and identify the following components: dendrites, cell body, nucleus, axon hillock, axon, axon collateral, teleodendria, terminals, nodes of Ranvier, and myelin sheath.

Match each ion with the MOST appropriate characteristic. -NA⁺-K⁺ pump ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -axon ___

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -endoplasmic reticulum ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -dendrites ___

Explain how communication within the nervous system is electrochemical in nature.

Quiz 4: Extension: B - the Structure and Electrical Activity of Neurons

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -ribosomal RNA ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -terminal buttons ___

Match each ion with the MOST appropriate characteristic. -A- ___

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -microtubules ___

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -mitochondria ___

Match each ion with the MOST appropriate characteristic. -Cl- influx ___

Identify the main function for each of the following: mitochondria, tubules, endoplasmic reticulum, Golgi body, and lysosomes.

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -DNA ___

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -lysosomes ___

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -messenger RNA ___

Match each ion with the MOST appropriate characteristic. -Na+ ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -axon hillock ___

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -lysosomes ___

Draw a simple diagram of a phospholipid bilayer, with "heads" and "tails" properly oriented.

Draw a representative neuron and identify the following components: dendrites, cell body, nucleus, axon hillock, axon, axon collateral, teleodendria, terminals, nodes of Ranvier, and myelin sheath.

Match each ion with the MOST appropriate characteristic. -NA+-K+ pump ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -axon ___

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -endoplasmic reticulum ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -dendrites ___

Explain how communication within the nervous system is electrochemical in nature.

Match each ion with the MOST appropriate characteristic. -Cl^- influx ___

Match each ion with the MOST appropriate characteristic. -Na⁺ ___

Match each ion with the MOST appropriate characteristic. -NA⁺-K⁺ pump ___