Podcast
Questions and Answers
O2 particles are small and polar in nature.
O2 particles are small and polar in nature.
- False (correct)
- True
Certain immune cells produce large amounts of chemical substances, important for immune responses. Secretion of such products will occur via which of the following?
Certain immune cells produce large amounts of chemical substances, important for immune responses. Secretion of such products will occur via which of the following?
- Exocytosis (correct)
- Phagocytosis
- Active transport
- Receptor mediated endocytosis
Which of the following is true about ribosomes?
Which of the following is true about ribosomes?
- Each consists of one large and one small subunit. (correct)
- They are inside the channels of the rough endoplasmic reticulum.
- Their final assembly occurs in the nucleus.
- They are DNA complexes responsible for protein synthesis.
Which of the following statements is true?
Which of the following statements is true?
Which statements concerning the endoplasmic reticulum (ER) are true?
Which statements concerning the endoplasmic reticulum (ER) are true?
A lower production of steroid hormones in some cells could be attributed to a fault in which of the following?
A lower production of steroid hormones in some cells could be attributed to a fault in which of the following?
The 2+9 array is observed in which of the following cell structures?
The 2+9 array is observed in which of the following cell structures?
Which cell structure is involved in linking cells together by forming special junctions?
Which cell structure is involved in linking cells together by forming special junctions?
Actin filaments constitute a large component of which of the following?
Actin filaments constitute a large component of which of the following?
The need for higher doses of medication is usually a result of increased detoxification within cells. Which of the following would have increased in such cases?
The need for higher doses of medication is usually a result of increased detoxification within cells. Which of the following would have increased in such cases?
COVID-19 virus is an RNA virus. Which of the following would be true of this virus?
COVID-19 virus is an RNA virus. Which of the following would be true of this virus?
Which of the following makes the plasma membrane less deformable?
Which of the following makes the plasma membrane less deformable?
During a race, why is it safer for marathon runners to take sports drinks which usually contain 8% carbohydrates rather than drinking pure water?
During a race, why is it safer for marathon runners to take sports drinks which usually contain 8% carbohydrates rather than drinking pure water?
Transcription factors are proteins that the cell uses to read DNA at the beginning of genes. Which of the following is responsible for synthesizing these factors?
Transcription factors are proteins that the cell uses to read DNA at the beginning of genes. Which of the following is responsible for synthesizing these factors?
What cell membrane proteins act as digestive enzymes?
What cell membrane proteins act as digestive enzymes?
A cellular disorder results in cells which modify large amounts of proteins but cannot secrete them. Which of the following organelles is likely to be the source of the problem?
A cellular disorder results in cells which modify large amounts of proteins but cannot secrete them. Which of the following organelles is likely to be the source of the problem?
Defect in which of the following leads to muscular dystrophy; a disease that causes muscles to be weak and affects a person’s ability to perform daily tasks?
Defect in which of the following leads to muscular dystrophy; a disease that causes muscles to be weak and affects a person’s ability to perform daily tasks?
Smoking damages the lungs by affecting which epithelial cell structure responsible for sweeping the airways?
Smoking damages the lungs by affecting which epithelial cell structure responsible for sweeping the airways?
Which of the following statements is correct about the displayed image (the molecules move outside to inside)?
Which of the following statements is correct about the displayed image (the molecules move outside to inside)?
The products of the endoplasmic reticulum are transported to the Golgi apparatus by:
The products of the endoplasmic reticulum are transported to the Golgi apparatus by:
Which organelle in the liver cells is expected to target and detoxify plant compounds?
Which organelle in the liver cells is expected to target and detoxify plant compounds?
Muscle cells would be expected to have more _______ and ________ than most other animal cells.
Muscle cells would be expected to have more _______ and ________ than most other animal cells.
Which one of the following organelles is involved in the production of proteins that are exported from the cell?
Which one of the following organelles is involved in the production of proteins that are exported from the cell?
Which organelle is responsible for the removal of other damaged organelles and cellular debris?
Which organelle is responsible for the removal of other damaged organelles and cellular debris?
Smooth endoplasmic reticulum has ribosomes on its surface and is therefore the site of protein synthesis.
Smooth endoplasmic reticulum has ribosomes on its surface and is therefore the site of protein synthesis.
To increase the surface area of some cells, the plasma membrane possesses:
To increase the surface area of some cells, the plasma membrane possesses:
The matrix of bones consists primarily of hard deposits of __________ and __________.
The matrix of bones consists primarily of hard deposits of __________ and __________.
Which muscle cells have many nuclei?
Which muscle cells have many nuclei?
Which cells produce histamine?
Which cells produce histamine?
If red blood cells are placed in distilled water, the cells will be:
If red blood cells are placed in distilled water, the cells will be:
Large molecules are engulfed by the cell by:
Large molecules are engulfed by the cell by:
If the extracellular fluid is higher than the intracellular fluid, the intracellular fluid is:
If the extracellular fluid is higher than the intracellular fluid, the intracellular fluid is:
The skin epidermis consists of:
The skin epidermis consists of:
Steroid hormones pass the plasma membrane directly by:
Steroid hormones pass the plasma membrane directly by:
Glucose passes the plasma membrane by:
Glucose passes the plasma membrane by:
The water-soluble molecules enter the cell by:
The water-soluble molecules enter the cell by:
Structure that is not divided during cytokinesis:
Structure that is not divided during cytokinesis:
The concentration of external fluid is greater than the internal. The internal is considered:
The concentration of external fluid is greater than the internal. The internal is considered:
Pinocytosis is:
Pinocytosis is:
Where are ribosomes produced?
Where are ribosomes produced?
What are the heads of phospholipids?
What are the heads of phospholipids?
Cells lose water if they are placed in:
Cells lose water if they are placed in:
Asymmetrical or unequal division occurs in:
Asymmetrical or unequal division occurs in:
The Smooth Endoplasmic Reticulum synthesizes:
The Smooth Endoplasmic Reticulum synthesizes:
Proteins that anchor the organelles and help the cell move:
Proteins that anchor the organelles and help the cell move:
Lysosomes are derived from:
Lysosomes are derived from:
The correct way to transport insulin to outside of the cell is:
The correct way to transport insulin to outside of the cell is:
Skeletal muscle is striated due to:
Skeletal muscle is striated due to:
Cleavage furrow is formed by:
Cleavage furrow is formed by:
Autosome pairs are considered:
Autosome pairs are considered:
The term 'residual bodies' refers to:
The term 'residual bodies' refers to:
Some cells of adrenal glands produce steroid hormones. Which organelle is abundant in these cells?
Some cells of adrenal glands produce steroid hormones. Which organelle is abundant in these cells?
Which of the following transmembrane proteins share double roles as force channels and recognition proteins?
Which of the following transmembrane proteins share double roles as force channels and recognition proteins?
Why should we wash blood on the floor with water instead of alcohol?
Why should we wash blood on the floor with water instead of alcohol?
What cellular organelle is especially important in phagocytic white blood cells?
What cellular organelle is especially important in phagocytic white blood cells?
Which of the following is true about ribosomes?
Which of the following is true about ribosomes?
Which of the following is common between Golgi bodies and Rough ER?
Which of the following is common between Golgi bodies and Rough ER?
Study Notes
COVID-19 Virus
- COVID-19 is caused by a virus
- The COVID-19 virus is an RNA virus
Virus Structure
- Viruses contain deoxyribose sugar in their nucleic acid structure.
- Viruses can have a double-stranded nucleic acid structure.
- Viruses do not contain uracil nucleotides in their structure.
- Viruses do contain thymine nucleotides in their structure.
Plasma Membrane
- Cholesterol makes the plasma membrane less deformable.
Cellular Processes
- Marathon runners should drink sports drinks with carbohydrates because they help make the drinks isotonic to the cells.
- Free floating ribosomes synthesize transcription factors.
- Peripheral proteins act as digestive enzymes in cell membranes.
- The Golgi apparatus modifies and secretes proteins, a defect in this organelle can lead to issues with protein secretion.
- Microfilaments play a vital role in muscle function, a defect in them can lead to muscular dystrophy.
- Cilia are responsible for sweeping airways, smoking can damage them.
Cellular Transport
- Lipid-soluble molecules can move across the cell membrane.
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Description
Explore the intricate details of cell biology, including the structure of viruses and their relationship to diseases like COVID-19. This quiz covers the composition of plasma membranes, cellular processes, and the role of key organelles in maintaining cellular function.
