FREE! Click here to Join FunTrivia. Thousands of games, quizzes, and lots more!

The World of a Cell Trivia Quiz

This quiz is all about the cell, its anatomical, physiological, and biochemical aspects. Get ready, and enjoy answering and learning! Tip: Use your imagination well.

A multiple-choice quiz by AlvarezMD. Estimated time: 5 mins.

Author
AlvarezMD

Time
5 mins

Type
Multiple Choice

Quiz #
336,863

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
6 / 10

Plays
1022

One at a Time - Single Page - Timed Game

Question 1 of 10

1. What organic compound is greatly responsible for the fluid-like consistency of the plasma membrane? Hint

phospholipids

cholesterol

saturated fatty acid tails

glycocalyx

NEXT>

Question 2 of 10

2. What part of the plasma membrane functions as channels for hydrophilic substances (such as glucose and salts) so that they can move in and out of the cell? Hint

integral proteins

glycocalyx

peripheral proteins

secondary messengers

3. Identify the organelle that is known as the "powerhouse of the cell". Its function is to provide the cell with chemical energy, in the form of ATP (adenosine triphosphate) via cellular respiration. Hint

mitochondrion

Golgi apparatus

rough endoplasmic reticulum

lysosome

NEXT>

Question 4 of 10

4. Glycolysis is the breakdown of glucose into smaller molecules needed for either fermentation or cellular respiration. It is also known as the substrate-level of phosphorylation since it uses glucose as a substrate to produce ATP.

Aside from ATP, what is the other major end product of glycolysis? Hint

oxaloacetate

hydroxybutyric acid

acetoacetate

pyruvate

NEXT>

Question 5 of 10

5. Osmosis is the movement of water molecules passing through a semi-permeable membrane. The direction of the movement of water is influenced by the difference in the concentration between the two solutions separated by the semi-permeable membrane.

If the plasma membrane is the semi-permeable membrane, and water from inside the cell moved to the outside of the cell, what can you say about the solution that is found outside the cell? Hint

it is a hypertonic solution

it is an isotonic solution

it is a hypotonic solution

no conclusion can be made from the statement

NEXT>

Question 6 of 10

6. G-protein is a trimeric protein composed of three sub-units. These three sub-units are the alpha, beta, and gamma sub-units. In its INACTIVE state, GDP or guanine diphosphate is bound to which sub-unit of the G-protein? Hint

alpha sub-unit

gamma sub-unit

beta sub-unit

it is not GDP but GTP

NEXT>

Question 7 of 10

7. Transcription is a process where an mRNA is produced using DNA as a template. What is the light-staining region found in the eukaryotic nucleus where transcription is very active? Hint

prochromatin

homochromatin

euchromatin

heterochromatin

NEXT>

Question 8 of 10

8. The Golgi apparatus modifies proteins and prepares them for secretion or storage. Which part of the Golgi apparatus do proteins enter? Hint

pre face

trans face

cis face

post face

NEXT>

Question 9 of 10

9. Which of the following is NOT TRUE regarding bacteria? Hint

Gram positive bacteria contain lipopolysaccharide on their outer leaflet.

Bacteria are capable of asexual reproduction through binary fission.

Bacteria contain a circular DNA and a plasmid found within the cytoplasm.

Bacteria achieve sexual reproduction by conjugation.

NEXT>

Question 10 of 10

10. Which of the following is NOT included in the classic cell theory? Hint

All organisms are composed of cells (unicellulary or multicellularly)

Cells come from pre-existing cells

The cell is the basic unit of life

Cells are always microscopic and never seen by an unaided eye

(Optional) Create a Free FunTrivia ID to save the points you are about to earn:

Select a User ID:

Choose a Password:

Your Email:

Quiz Answer Key and Fun Facts

1. What organic compound is greatly responsible for the fluid-like consistency of the plasma membrane?

Answer: cholesterol

Cholesterol is a lipid-soluble substance found within the hydrophobic areas of the phospholipid bilayer. They prevent the phospholipid molecules from getting too close to each other, and thereby preventing the plasma membrane to become a rigid structure.

2. What part of the plasma membrane functions as channels for hydrophilic substances (such as glucose and salts) so that they can move in and out of the cell?

Answer: integral proteins

Integral proteins can be found across the phospholipid bilayer. This means they are perpendicular in respect to the plasma membrane. Their structure allows passage of hydrophilic or ionic substances across the membrane. Since these substances are not lipid-soluble, they do not easily diffuse and go inside the cell.

Answer: mitochondrion

The mitochondria is an essential part of the cell because this is where cellular respiration occurs. This process requires the presence of oxygen and it yields numerous ATP, the energy currency of cells. It has a circular DNA found within the mitochondiral matrix, and can therefore multiply on its own by binary fission.

4. Glycolysis is the breakdown of glucose into smaller molecules needed for either fermentation or cellular respiration. It is also known as the substrate-level of phosphorylation since it uses glucose as a substrate to produce ATP. Aside from ATP, what is the other major end product of glycolysis?

Answer: pyruvate

Pyruvate is either converted to acetyl CoA in the mitochondria in the presence of oxygen (during aerobic conditions) or fermented in the cytoplasm to produce lactic acid in the absence of oxygen (during the anaerobic conditions).

5. Osmosis is the movement of water molecules passing through a semi-permeable membrane. The direction of the movement of water is influenced by the difference in the concentration between the two solutions separated by the semi-permeable membrane. If the plasma membrane is the semi-permeable membrane, and water from inside the cell moved to the outside of the cell, what can you say about the solution that is found outside the cell?

Answer: it is a hypertonic solution

In osmosis, the water molecules always go to the direction where a solution has a higher concentration of solute. When water moves out of the cell (causing cell shrinking or crenation), the solution outside the cell is said to be hypertonic. When water moves into the cell (causing cell bursting), the solution outside the cell is said to be hypotonic.

When there is NO net movement of water going in or out the cell, the solution outside the cell is isotonic.

Answer: alpha sub-unit

The activated G-protein has a GTP bound to the alpha sub-unit. The alpha sub-unit is dissociated from the beta and gamma sub-units when it is in its active state. The activate state of the alpha G-protein sub-unit can cause a second messenger known as cyclic adenosine monophosphate (cAMP) to be produced, catalyzed by the enzyme adenyl cyclase.

7. Transcription is a process where an mRNA is produced using DNA as a template. What is the light-staining region found in the eukaryotic nucleus where transcription is very active?

Answer: euchromatin

The heterochromatin is a region in the nucleus (dark-staining in histological preparations) that is inactive in the process of transcription. Meanwhile, euchromatin (light-staining) is active.

8. The Golgi apparatus modifies proteins and prepares them for secretion or storage. Which part of the Golgi apparatus do proteins enter?

Answer: cis face

The Golgi apparatus is an organelle of a cell which functions for post-modifications of proteins. These proteins come from the the rough endoplasmic reticulum. They enter the Golgi apparatus on the cis face and leaves the organelle through the trans face.

The cis face is some-what covex in form, while the trans face is some-what concave. Modified proteins exit the Golgi apparatus and are either brought to the plasma membrane through secretory vesicles to be exocytosed, or they are stored in storage vesicles for future use.

9. Which of the following is NOT TRUE regarding bacteria?

Answer: Gram positive bacteria contain lipopolysaccharide on their outer leaflet.

Gram positive bacteria do NOT have lipopolysaccharide in their outer leaflets. Lipopolysaccharides can be found in Gram negative bacteria. Lipopolysaccharide is responsible for the sensitivity of humans to bacteria, causing inflammation.

10. Which of the following is NOT included in the classic cell theory?

Answer: Cells are always microscopic and never seen by an unaided eye

Not all cells are microscopic. Some cells can be seen by an unaided / naked eye. An egg cell / ovum is 0.12 mm, and a skeletal muscle cell diameter is 0.1 mm.

Source: Author AlvarezMD

This quiz was reviewed by FunTrivia editor crisw before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.