Cell Membrane Structure Quiz
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Cell Membrane Structure Quiz

Test your knowledge on the components and properties of the cell membrane, including transport proteins, glycolipids, glycoproteins, cholesterol, and phospholipids. Understand how cholesterol affects the fluidity and stability of the membrane, as well as the importance of selective permeability in regulating the entry and exit of molecules.

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@ObservantModernism

Questions and Answers

Cholesterol plays a role in controlling fluidity and adding sturdiness to the membrane.

True

Sobrang titigas yung bilayer when there is too little cholesterol present.

False

Membrane Lipids are unipathic, consisting of 1 polar head and 2 nonpolar tails.

False

The hydrophobic part of a membrane lipid is composed of hydrocarbons.

<p>True</p> Signup and view all the answers

Peripheral proteins are attached to both sides of the lipid bilayer.

<p>False</p> Signup and view all the answers

Receptors on cell membranes can only interact with ligands and not viruses or bacteria.

<p>False</p> Signup and view all the answers

The specific heat of water is 1.0 calorie per gram, which is lower than other liquids.

<p>False</p> Signup and view all the answers

If the temperature of water changes rapidly, it can lead to climate change, flooding, and typhoons.

<p>True</p> Signup and view all the answers

When we sweat, the warmer layer on top of the skin has high heat energy.

<p>True</p> Signup and view all the answers

Water's high heat of vaporization means it vaporizes quickly compared to other liquids.

<p>False</p> Signup and view all the answers

The cohesive behavior of water is due to its extensive network of hydrogen bonded molecules.

<p>True</p> Signup and view all the answers

If you immerse a stem with flowers in colored dye, the color of the flower will not change after 10 minutes.

<p>False</p> Signup and view all the answers

A single carbon atom is conductive and can conduct electricity.

<p>False</p> Signup and view all the answers

Bucky balls, which are made up of many carbons grouped together, were synthesized more than 2 decades ago.

<p>True</p> Signup and view all the answers

The octet rule states that an atom is stable when it has 6 electrons in its outermost shell.

<p>False</p> Signup and view all the answers

In H2O, the unequal sharing of electrons results in hydrogen having a partial negative charge.

<p>False</p> Signup and view all the answers

Carbon is considered stable when it has 8 electrons in its outermost shell.

<p>True</p> Signup and view all the answers

Direction of arrows pointing towards oxygen in a molecule indicate polarity because oxygen is less electronegative.

<p>False</p> Signup and view all the answers

Valence is defined as the number of electrons needed to make an atom stable and complete the 8 electrons in the outermost shell, following the octet rule.

<p>True</p> Signup and view all the answers

Chitin, a fibrous substance in arthropod exoskeletons, is made up of monosaccharides.

<p>False</p> Signup and view all the answers

Cellulose, found in plant cell walls, is made up of long chains of glucose molecules connected by ionic bonds.

<p>False</p> Signup and view all the answers

Humans can digest cellulosic material easily due to the presence of specific enzymes.

<p>False</p> Signup and view all the answers

Researchers have studied termites because they are interested in their ability to produce bioethanol.

<p>False</p> Signup and view all the answers

The primary structure of proteins becomes functional as soon as it is synthesized.

<p>False</p> Signup and view all the answers

Lipids are different from other macromolecules because they consist of repeating subunits like proteins and nucleic acids.

<p>False</p> Signup and view all the answers

Most macromolecules are structural in nature, such as cellulose and chitin.

<p>True</p> Signup and view all the answers

Cellulose is composed of layers or chains of alpha glucose.

<p>False</p> Signup and view all the answers

Amylose and amylopectin are both components of starch.

<p>True</p> Signup and view all the answers

Glycogen serves as a storage molecule for glucose in plant cells.

<p>False</p> Signup and view all the answers

The addition of each monomer to form macromolecules occurs by the addition of a water molecule.

<p>False</p> Signup and view all the answers

ATP provides the energy required to couple a monomer to a carrier molecule during polymerization.

<p>True</p> Signup and view all the answers

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