Podcast
Questions and Answers
What is the main function of the cell surface membrane?
What is the main function of the cell surface membrane?
to control the exchange of materials between the cell and its environment
What is the nucleus and where is it found?
What is the nucleus and where is it found?
a relatively large structure that is found in all eukaryotic cells
What is the difference between the cell surface membrane and the nuclear envelope?
What is the difference between the cell surface membrane and the nuclear envelope?
the cell surface membrane surrounds the entire cell, while the nuclear envelope surrounds the nucleus
What is unique about the structure of the cell surface membrane?
What is unique about the structure of the cell surface membrane?
What is the diameter of the cell surface membrane?
What is the diameter of the cell surface membrane?
What is the main difference between the structures found in animal and plant cells?
What is the main difference between the structures found in animal and plant cells?
What is the term for all the living material outside the nucleus?
What is the term for all the living material outside the nucleus?
What is the definition of an organelle?
What is the definition of an organelle?
What is the main function of nucleoli?
What is the main function of nucleoli?
What is the term for the material of which chromosomes are made?
What is the term for the material of which chromosomes are made?
Why is it essential to organize cell activities in separate compartments?
Why is it essential to organize cell activities in separate compartments?
What is the term for the combination of cytoplasm and nucleus?
What is the term for the combination of cytoplasm and nucleus?
What is the minimum distance between two points that can be distinguished as separate using a light microscope?
What is the minimum distance between two points that can be distinguished as separate using a light microscope?
Why does increasing the magnification of an image not reveal more detail?
Why does increasing the magnification of an image not reveal more detail?
What is the purpose of adding a drop of glycerine to the stain in the preparation of biological specimens?
What is the purpose of adding a drop of glycerine to the stain in the preparation of biological specimens?
What is the purpose of the equation actual size, A = image size, I / magnification, M?
What is the purpose of the equation actual size, A = image size, I / magnification, M?
What is the effect of methylene blue on animal cells such as cheek cells?
What is the effect of methylene blue on animal cells such as cheek cells?
What is the significance of the wavelength of 700 nm in the electromagnetic spectrum?
What is the significance of the wavelength of 700 nm in the electromagnetic spectrum?
What happens when two points are closer together than the resolution of a microscope?
What happens when two points are closer together than the resolution of a microscope?
What is the purpose of using a cover slip in the preparation of biological specimens?
What is the purpose of using a cover slip in the preparation of biological specimens?
What is the effect of iodine in potassium iodide solution on plant specimens?
What is the effect of iodine in potassium iodide solution on plant specimens?
What is the advantage of using an electron micrograph, such as Figure 1.20, over a light microscope?
What is the advantage of using an electron micrograph, such as Figure 1.20, over a light microscope?
Why are temporary preparations of fresh material useful in biology?
Why are temporary preparations of fresh material useful in biology?
What is the purpose of macerating (chopping up) material in biology?
What is the purpose of macerating (chopping up) material in biology?
What is the purpose of the spindle made of microtubules during nuclear division?
What is the purpose of the spindle made of microtubules during nuclear division?
What is the difference between the size of cytoplasmic ribosomes and those found in mitochondria and chloroplasts?
What is the difference between the size of cytoplasmic ribosomes and those found in mitochondria and chloroplasts?
What is the endosymbiont theory, and what does it suggest about the origin of mitochondria and chloroplasts?
What is the endosymbiont theory, and what does it suggest about the origin of mitochondria and chloroplasts?
What is the role of the DNA and ribosomes found in mitochondria and chloroplasts?
What is the role of the DNA and ribosomes found in mitochondria and chloroplasts?
What is the significance of the discovery of ribosomes in mitochondria and chloroplasts?
What is the significance of the discovery of ribosomes in mitochondria and chloroplasts?
What is the function of the mitochondrial matrix in relation to ribosomes?
What is the function of the mitochondrial matrix in relation to ribosomes?
