Chapter 2 – The Cell

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Intercellular Attachment

The Plasmalemma & Membrane Permeability

Non-membranous Organelles

Membranous Organelles

The Cell Life Cycle

FINAL ROUND

Topic 1:

$100 Question

Question: Large areas of opposing plasmalemma may be interconnected with which of the following transmembrane proteins?

a. glycosaminoglycansb. glycoproteinsc. cell adhesion molecules (CAMs)d. proteoglycans

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ANSWER

Topic 1:

$100 Answer

Question: Large areas of opposing plasmalemma may be interconnected with which of the following transmembrane proteins?

a. glycosaminoglycansb. glycoproteinsc. cell adhesion molecules (CAMs)d. proteoglycans

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Topic 1:

$200 Question

In which type(s) of cell junction(s), also called occluding junctions, are the lipid portions of two plasmalemmae bound together by interlocking membrane proteins?

a. tight junctions

b. communicating junctions

c. anchoring junctions

d. All of the aboveBACK TO GAME

ANSWER

Topic 1:

$200 Answer

In which type(s) of cell junction(s), also called occluding junctions, are the lipid portions of two plasmalemmae bound together by interlocking membrane proteins?

a. tight junctions

b. communicating junctions

c. anchoring junctions

d. All of the aboveBACK TO GAME

Topic 1:

$300 Question

Dead skin cells are shed in thick sheets, rather than individually, due to ______, which create such strong links or attachments.

a. macula adherensb. zonula adherensc. focal adhesionsd. nexuses

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ANSWER

Topic 1:

$300 Answer

Dead skin cells are shed in thick sheets, rather than individually, due to ______, which create such strong links or attachments.

a. macula adherensb. zonula adherensc. focal adhesionsd. nexuses

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Topic 1:

$400 Question

Hemidesmosomes attach which of the following structure(s) to extracellular structures, such as protein fibers in the basal lamina?

a. connective tissue cellsb. adhesion beltsc. epithelial cellsd. b and c

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ANSWER

Topic 1:

$400 Answer

Hemidesmosomes attach which of the following structure(s) to extracellular structures, such as protein fibers in the basal lamina?

a. connective tissue cellsb. adhesion beltsc. epithelial cellsd. b and c

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Topic 1:

$500 Question

Which of the following is a type of anchoring junctions, also termed a “desmosome”?

a. zonula adherens

b. macula adherens

c. focal adhesions

d. dense areaBACK TO GAME

ANSWER

Topic 1:

$500 Answer

Which of the following is a type of anchoring junctions, also termed a “desmosome”?

a. zonula adherens

b. macula adherens

c. focal adhesions

d. dense areaBACK TO GAME

Topic 2:

$100 Question

Functions of the plasmalemma do not include which of the following?

a. control of entrance and exit of materials

b. protectionc. movement of materials across the

cell surfaced. support

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ANSWER

Topic 2:

$100 Answer

Functions of the plasmalemma do not include which of the following?

a. control of entrance and exit of materials

b. protectionc. movement of materials across the

cell surfaced. support

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Topic 2:

$200 Question

Cytoplasmic enzymes on the inner surface of the plasmalemma may be bound to which of the following structure(s)?

a. peripheral proteins

b. integral proteins

c. glycolipids

d. cholesterol moleculesBACK TO GAME

ANSWER

Topic 2:

$200 Answer

Cytoplasmic enzymes on the inner surface of the plasmalemma may be bound to which of the following structure(s)?

a. peripheral proteins

b. integral proteins

c. glycolipids

d. cholesterol moleculesBACK TO GAME

Topic 2:

$300 Question

The selective permeability of the plasmalemma permits the free passage of some materials, and restricts the passage of others, based upon which of the following characteristics?

a. solubility of the substance

b. electrical charge

c. molecular shape and size

d. All of the above.BACK TO GAME

ANSWER

Topic 2:

$300 Answer

The selective permeability of the plasmalemma permits the free passage of some materials, and restricts the passage of others, based upon which of the following characteristics?

a. solubility of the substance

b. electrical charge

c. molecular shape and size

d. All of the above.BACK TO GAME

Topic 2:

$400 Question

Which of the following mechanism(s) of endocytosis is/are performed only by specialized cells of the immune system?

a. pinocytosis

b. phagocytosis

c. receptor-mediated endocytosis

d. b and cBACK TO GAME

ANSWER

Topic 2:

$400 Answer

Which of the following mechanism(s) of endocytosis is/are performed only by specialized cells of the immune system?

a. pinocytosis

b. phagocytosis

c. receptor-mediated endocytosis

d. b and cBACK TO GAME

Topic 2:

$500 Question

Glucose and amino acids enter all cells via which of the following mechanisms?

a. facilitated diffusion

b. diffusion

c. osmosis

d. endocytosisBACK TO GAME

ANSWER

Topic 2:

$500 Answer

Glucose and amino acids enter all cells via which of the following mechanisms?

a. facilitated diffusion

b. diffusion

c. osmosis

d. endocytosisBACK TO GAME

Topic 3:

$100 Question

Flagella are formed by which of the following non-membranous organelles?

a. microfilaments

b. microtubules

c. intermediate filaments

d. thick filamentsBACK TO GAME

ANSWER

Topic 3:

$100 Answer

Flagella are formed by which of the following non-membranous organelles?

a. microfilaments

b. microtubules

c. intermediate filaments

d. thick filamentsBACK TO GAME

Topic 3:

$200 Question

Each ribosome consists of approximately:

a. 50% RNA / 50% protein

b. 60% RNA / 40% protein

c. 40% RNA / 60% protein

d. 75% RNA / 25% protein

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ANSWER

Topic 3:

$200 Answer

Each ribosome consists of approximately:

a. 50% RNA / 50% protein

b. 60% RNA / 40% protein

c. 40% RNA / 60% protein

d. 75% RNA / 25% protein

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Topic 3:

$300 Question

Which of the following statements regarding cilia is false?

a. Cilia are anchored to a compact centrosome near the nucleus.

b. Cilia contain nine groups of microtubule doublets surrounding a central pair.

c. Cilia function to propel fluids or solids across the cell surface.

d. The exposed portion of the cilium is completely covered by the plasmalemma.

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ANSWER

Topic 3:

$300 Answer

Which of the following statements regarding cilia is false?

a. Cilia are anchored to a compact centrosome near the nucleus.

b. Cilia contain nine groups of microtubule doublets surrounding a central pair.

c. Cilia function to propel fluids or solids across the cell surface.

d. The exposed portion of the cilium is completely covered by the plasmalemma.

BACK TO GAME

Topic 3:

$400 Question

The primary components of the cytoskeleton are which of the following non-membranous organelles?

a. intermediate filaments

b. thick filaments

c. microtubules

d. microfilamentsBACK TO GAME

ANSWER

Topic 3:

$400 Answer

The primary components of the cytoskeleton are which of the following non-membranous organelles?

a. intermediate filaments

b. thick filaments

c. microtubules

d. microfilamentsBACK TO GAME

Topic 3:

$500 Question

Which of the following cells do not contain centrioles?

a. mature red blood cells

b. skeletal muscle cells

c. a and b

d. All cells contain centrioles.BACK TO GAME

ANSWER

Topic 3:

$500 Answer

Which of the following cells do not contain centrioles?

a. mature red blood cells

b. skeletal muscle cells

c. a and b

d. All cells contain centrioles. BACK TO GAME

Topic 4:

$100 Question

The nucleus does not:

a. Store all the information needed to control the synthesis of many different proteins.

b. Determine the structural and functional characteristic of the cell.

c. Exist in mature red blood cells.

d. Direct processes that take place in the cytosol.

BACK TO GAMEANSWER

Topic 4:

$100 Answer

The nucleus does not:

a. store all the information needed to control the synthesis of many different proteins.

b. determine the structural and functional characteristic of the cell.

c. exist in mature red blood cells.

d. direct processes that take place in the cytosol.

BACK TO GAME

Topic 4:

$200 Question

Which of the following cells may contain as many as 300 mitochondria in each cell?

a. liver cells

b. skeletal muscle cells

c. smooth muscle cells

d. a and bBACK TO GAME

ANSWER

Topic 4:

$200 Answer

Which of the following cells may contain as many as 300 mitochondria in each cell?

a. liver cells

b. skeletal muscle cells

c. smooth muscle cells

d. a and bBACK TO GAME

Topic 4:

$300 Question

Which of the following is responsible for the synthesis of ribosomal components?

a. rough ER

b. smooth ER

c. nucleosomes

d. nucleoli BACK TO GAME

ANSWER

Topic 4:

$300 Answer

Which of the following is responsible for the synthesis of ribosomal components?

a. rough ER

b. smooth ER

c. nucleosomes

d. nucleoliBACK TO GAME

Topic 4:

$400 Question

Which of the following membranous organelles remove bacteria, and isolate them within vesicles, ultimately releasing usable substances such as carbohydrates (sugars) and amino acids?

a. peroxisomes

b. lysosomes

c. nucleosomes

d. a and b BACK TO GAME

ANSWER

Topic 4:

$400 Answer

Which of the following membranous organelles remove bacteria, and isolate them within vesicles, ultimately releasing usable substances such as carbohydrates (sugars) and amino acids?

a. peroxisomes

b. lysosomes

c. nucleosomes

d. a and bBACK TO GAME

Topic 4:

$500 Question

Which of the following statements regarding the Golgi apparatus is false?

a. Transport vesicles from the RER fuse with the Golgi membrane at the forming (cis) face.

b. Enzymes within the Golgi modify the arriving proteins and glycoproteins within the matrix of the Golgi.

c. Golgi membranes may undergo complete turnover every 40 minutes.

d. None of the above statement is false.BACK TO GAME

ANSWER

Topic 4:

$500 Answer

Which of the following statements regarding the Golgi apparatus is false?

a. Transport vesicles from the RER fuse with the Golgi membrane at the forming (cis) face.

b. Enzymes within the Golgi modify the arriving proteins and glycoproteins within the matrix of the Golgi.

c. Golgi membranes may undergo complete turnover every 40 minutes.

d. None of the above statement is false. BACK TO GAME

Topic 5:

$100 Question

Which of the following never enter the G0 phase?

a. neurons

b. skeletal muscle cells

c. stem cells

d. a and b BACK TO GAME

ANSWER

Topic 5:

$100 Answer

Which of the following never enter the G0 phase?

a. neurons

b. skeletal muscle cells

c. stem cells

d. a and b BACK TO GAME

Topic 5:

$200 Question

Which of the following statements regarding the cell life cycle is generally false?

a. G2 may last from 2-5 hours.

b. M may last from 1-3 hours.

c. S may last from 12-24 hours.

d. G1 may last for 8 or more hours.BACK TO GAMEANSWER

Topic 5:

$200 Answer

Which of the following statements regarding the cell life cycle is generally false?

a. G2 may last from 2-5 hours.

b. M may last from 1-3 hours.

c. S may last from 12-24 hours.

d. G1 may last for 8 or more hours.BACK TO GAME

Topic 5:

$300 Question

The separation process known as cytokinesis usually begins in which step of mitosis?

a. late anaphase

b. late metaphase

c. early telophase

d. late telophaseBACK TO GAME

ANSWER

Topic 5:

$300 Answer

The separation process known as cytokinesis usually begins in which step of mitosis?

a. late anaphase

b. late metaphase

c. early telophase

d. late telophaseBACK TO GAME

Topic 5:

$400 Question

Which of the following is the most important step in cell division?

a. transcription of DNA

b. DNA replication

c. translation of DNA

d. a and cBACK TO GAME

ANSWER

Topic 5:

$400 Answer

Which of the following is the most important step in cell division?

a. transcription of DNA

b. DNA replication

c. translation of DNA

d. a and cBACK TO GAME

Topic 5:

$500 Question

Which of the following statements is true regarding the mitotic rate?

a. The longer the life expectancy of the cell type, the faster the mitotic rate.

b. The longer the life expectancy of the cell type, the slower the mitotic rate.

c. Relatively short-lived cells, such as muscle cells and neurons, either never divide, or do so only under special circumstances.

d. Cells lining the digestive tract may survive for months or even years, due to their modified mitotic rate.

BACK TO GAMEANSWER

Topic 5:

$500 Answer

Which of the following statements is true regarding the mitotic rate?

a. The longer the life expectancy of the cell type, the faster the mitotic rate.

b. The longer the life expectancy of the cell type, the slower the mitotic rate.

c. Relatively short-lived cells, such as muscle cells and neurons, either never divide, or do so only under special circumstances.

d. Cells lining the digestive tract may survive for months or even years, due to their modified mitotic rate.

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FINAL ROUND Question

Which of the following statements regarding vesicular transport, transfer, and secretion is false?

a. Because the Golgi apparatus continually adds new membrane to the cell surface, it has the ability to change the properties of the plasmalemma over time, which may profoundly alter the sensitivity and functions of the cell.

b. Secretory vesicles carry the secretory product from the endoplasmic reticulum to the Golgi apparatus.

c. In an actively secreting cell, the Golgi membranes may undergo a complete turnover every 40 minutes; additionally, an area equal the entire membrane surface may be replaced each hour.

d. Vesicles moving from the RER to the Golgi arrive at a convex cisterna known as the forming, or cis face. Ultimately, the product will exit the Golgi in vesicles from the maturing, or trans face.

BACK TO GAMEANSWER

FINAL ROUND Answer

Which of the following statements regarding vesicular transport, transfer, and secretion is false?

a. Because the Golgi apparatus continually adds new membrane to the cell surface, it has the ability to change the properties of the plasmalemma over time, which may profoundly alter the sensitivity and functions of the cell.

b. Secretory vesicles carry the secretory product from the endoplasmic reticulum to the Golgi apparatus.

c. In an actively secreting cell, the Golgi membranes may undergo a complete turnover every 40 minutes; additionally, an area equal the entire membrane surface may be replaced each hour.

d. Vesicles moving from the RER to the Golgi arrive at a convex cisterna known as the forming, or cis face. Ultimately, the product will exit the Golgi in vesicles from the maturing, or trans face.

BACK TO GAME