BIO 230 LECTURE
Name: Joseline Guaman
CHAPTER 3 REVIEW QUESTIONS
13.
• Anchoring proteins
• Recognition proteins
• Receptor proteins
• Carrier proteins
• Channels
14. Mitosis: Refers to the division and duplication of the cell’s nucleus. Mitosis
actually, occurs in four phases (prophase, metaphase, anaphase, and telophase)
Cytokinesis is the final stage of cell division, during which the cytoplasm splits into two
forming two daughter cells.
15. diffusion: Spreading of particles or molecules from high concentration to low
concentration areas.
Osmosis: a process by which molecules of a solvent tend to pass through a
semipermeable membrane from a less concentrated solution into a more concentrated
one, thus equalizing the concentrations on each side of the membrane.
16. Mitochondria contain their own DNA (mDNA) and are the organelles that produce
energy to carry out the functions of life.
17.
No membranous organelles Membranous organelles
Cytoskeleton Mitochondria
Microvilli Nucleus
centrioles Endoplasmic reticulum
Cilia Golgi apparatus
Flagella Lysosomes
Ribosomes Peroxisomes
18.Mitosis Stages
1. Prophase_ Chromosomes condense and become visible; each copy called
chromosomes
Spindle fibers emerge from the centrosomes
Nuclear envelope breaks down
Centrosomes move to opposite poles
2. Metaphase_ chromatids line up at metaphase plate.
3. Anaphase_ Centromeres split in two.
4. Telophase_ Each new cell returns to interphase. Nuclear envelope material
surrounds each set of chromosomes.
19. The presence of Microvilli in the plasma membrane enhance the cell surface’s
ability to absorb material from extracellular fluid.
20A red blood cell will swell and undergo hemolysis (burst) when placed in a hypotonic
solution. Because the water will flow into the cell.
21.
• Transcription of DNA forms mRNA.
• Introns are snipped from mRNA.
• mRNA exits nucleus through nuclear pore
• Ribosomal subunits bind to mRNA.
Name: Joseline Guaman
CHAPTER 3 REVIEW QUESTIONS
13.
• Anchoring proteins
• Recognition proteins
• Receptor proteins
• Carrier proteins
• Channels
14. Mitosis: Refers to the division and duplication of the cell’s nucleus. Mitosis
actually, occurs in four phases (prophase, metaphase, anaphase, and telophase)
Cytokinesis is the final stage of cell division, during which the cytoplasm splits into two
forming two daughter cells.
15. diffusion: Spreading of particles or molecules from high concentration to low
concentration areas.
Osmosis: a process by which molecules of a solvent tend to pass through a
semipermeable membrane from a less concentrated solution into a more concentrated
one, thus equalizing the concentrations on each side of the membrane.
16. Mitochondria contain their own DNA (mDNA) and are the organelles that produce
energy to carry out the functions of life.
17.
No membranous organelles Membranous organelles
Cytoskeleton Mitochondria
Microvilli Nucleus
centrioles Endoplasmic reticulum
Cilia Golgi apparatus
Flagella Lysosomes
Ribosomes Peroxisomes
18.Mitosis Stages
1. Prophase_ Chromosomes condense and become visible; each copy called
chromosomes
Spindle fibers emerge from the centrosomes
Nuclear envelope breaks down
Centrosomes move to opposite poles
2. Metaphase_ chromatids line up at metaphase plate.
3. Anaphase_ Centromeres split in two.
4. Telophase_ Each new cell returns to interphase. Nuclear envelope material
surrounds each set of chromosomes.
19. The presence of Microvilli in the plasma membrane enhance the cell surface’s
ability to absorb material from extracellular fluid.
20A red blood cell will swell and undergo hemolysis (burst) when placed in a hypotonic
solution. Because the water will flow into the cell.
21.
• Transcription of DNA forms mRNA.
• Introns are snipped from mRNA.
• mRNA exits nucleus through nuclear pore
• Ribosomal subunits bind to mRNA.
