13 Questions
What is known as the basic unit of life?
Cell
Which of the following is NOT a common factor in cells?
Mitochondria
What is responsible for the hereditary characteristics of the cell?
Genetic material
Which organelle is not mentioned as a common factor in cells?
Endoplasmic reticulum
What is the function of the plasma membrane in a cell?
To selectively control which substances are transported into or out of the cell
What is the arrangement of the phospholipid bilayer in the plasma membrane?
Hydrophobic tails facing inwards and hydrophilic heads facing outwards
Which component of the plasma membrane allows it to selectively allow different substances to enter and leave the cell?
Phospholipids
What is the main function of the plasma membrane's carbohydrates?
To facilitate communication with other cells
Which type of fatty acids in the tails of phospholipids would increase the fluidity of the plasma membrane?
Unsaturated fatty acids
Which substances require the assistance of a protein channel to cross the phospholipid part of the membrane?
Hydrophilic substances
In which organelle does aerobic cellular respiration occur, releasing usable energy in the form of ATP molecules?
Mitochondrion
What is the primary function of vacuoles in plants?
Store substances
Which cell type has a cell wall that contains cellulose and provides cellular structure and protection?
Plant cells
Explore the significance of the plasma membrane in the context of cell theory, which states that every cell originates from a pre-existing cell. Understand the common factors shared by cells, including genetic material, cytosol, ribosomes, and the plasma membrane.
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