30 Questions
Which process involves the movement of hydrophilic and charged molecules across the membrane with the help of transport proteins?
Facilitated diffusion
What is the main energy source for cells?
Carbohydrates
What is the role of enzymes in chemical reactions?
Speed up the reactions
What is the energy required to start a metabolic reaction called?
Activation energy
What is the process of converting food energy into a usable form and releasing waste products called?
Cellular respiration
Which organelle is responsible for performing specific jobs required by the cell and working with other organelles?
Golgi apparatus
What is the function of the cytoplasm?
To house organelles
What is the main function of the plasma membrane?
To define the outer boundary of cells
Which molecules can cross the plasma membrane?
Uncharged molecules such as CO2 and O2
What is the aim for Week 3 in the course Introduction to the Biology of Humans?
To learn about cell structure
Which organelle produces energy for the cell through cellular respiration?
Mitochondrion
Which of the following is NOT a subcellular structure?
Cytosol
What is the function of the nucleus in eukaryotic cells?
Holds chromatin (DNA and proteins)
What is the main function of the cell wall in plants, fungi, and bacteria?
Protection outside the plasma membrane
What is the process of passive transport that involves movement of molecules from an area of high concentration to low concentration?
Diffusion
Which molecule is the high-energy currency of the cell?
ATP
Which process in cellular respiration requires oxygen?
Electron transport chain
Where does glycolysis occur?
Cytosol
What is the overall reaction of aerobic cellular respiration?
Glucose + oxygen → water + carbon dioxide
Which stage of cellular respiration produces the most ATP?
Electron transport chain
Which metabolic process can generate energy without oxygen?
Fermentation
Which of the following is NOT a product of fermentation?
Cheese
What is the difference between a benign tumor and a malignant tumor?
Malignant tumors affect surrounding tissues, while benign tumors do not.
How do cancer cells differ from normal cells?
Cancer cells move to other locations in the body, while normal cells do not.
What are some risk factors for developing cancer?
All of the above
Which of the following statements about alcohol and cancer risk reduction is true?
Alcohol can damage DNA by dissolving harmful chemicals.
What is the recommended daily intake of alcoholic drinks for women to reduce cancer risk?
One
Which of the following is NOT a risk-reducing behavior for cancer prevention?
Consuming alcohol in moderation
What is the biological mechanism behind the risk reduction associated with eating a low-fat, high-fiber diet?
Boosted immune system
Why is maintaining a healthy weight important for reducing the risk of certain cancers?
It helps regulate hormone levels
This quiz covers the concept of cellular respiration and focuses on adenosine triphosphate (ATP) and phosphorylation. Test your knowledge on the structure of ATP, the process of phosphorylation, and the production of adenosine diphosphate (ADP).
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