PHYS 261 - Lab Final Practicum
QUESTIONS WELL ANSWERED TO
PASS
What are the phases of mitosis? - correct answer ✔✔ interphase, early prophase, late
prophase, metaphase, anaphase, telophase, cytokinesis
Interphase - correct answer ✔✔ - normal metabolic functions
- not part of mitosis
- 3 stages (G1, S, G2)
3 Stages of Interphase - correct answer ✔✔ G1 - centrioles begin replicating
S - DNA is replicated
G2 - centrioles finish replicating
Early Prophase - correct answer ✔✔ - chromatin condenses
- sister chromatids held together by centromere
- mitotic spindle (centrosomes)
Late Prophase - correct answer ✔✔ - nuclear envelope breaks up
- chromosomes drawn to the middle of the cell
Metaphase - correct answer ✔✔ - chromosomes line up at the equator
- enzymes separate the chromatids
, Anaphase - correct answer ✔✔ - shortest phase
- centromeres split
- chromatids -> chromosomes
- microtubules pull chromosomes to poles
Telophase - correct answer ✔✔ - prophase in reverse
- chromosomes uncoil -> chromatin
- new nuclear envelope forms
- spindle breaks down
- end of mitosis
Cytokinesis - correct answer ✔✔ - actin microfilaments forms cleavage furrow
- division of cytoplasm
Molecular motion - correct answer ✔✔ - random and erratic
- kinetic energy
passive transport - correct answer ✔✔ movement driven by concentration/pressure differences
- equalizes gradient
active transport - correct answer ✔✔ cell provides energy to power movement
Diffusion - correct answer ✔✔ movement of molecules from region of higher concentration to
lower concentration
- driving force is kinetic energy
QUESTIONS WELL ANSWERED TO
PASS
What are the phases of mitosis? - correct answer ✔✔ interphase, early prophase, late
prophase, metaphase, anaphase, telophase, cytokinesis
Interphase - correct answer ✔✔ - normal metabolic functions
- not part of mitosis
- 3 stages (G1, S, G2)
3 Stages of Interphase - correct answer ✔✔ G1 - centrioles begin replicating
S - DNA is replicated
G2 - centrioles finish replicating
Early Prophase - correct answer ✔✔ - chromatin condenses
- sister chromatids held together by centromere
- mitotic spindle (centrosomes)
Late Prophase - correct answer ✔✔ - nuclear envelope breaks up
- chromosomes drawn to the middle of the cell
Metaphase - correct answer ✔✔ - chromosomes line up at the equator
- enzymes separate the chromatids
, Anaphase - correct answer ✔✔ - shortest phase
- centromeres split
- chromatids -> chromosomes
- microtubules pull chromosomes to poles
Telophase - correct answer ✔✔ - prophase in reverse
- chromosomes uncoil -> chromatin
- new nuclear envelope forms
- spindle breaks down
- end of mitosis
Cytokinesis - correct answer ✔✔ - actin microfilaments forms cleavage furrow
- division of cytoplasm
Molecular motion - correct answer ✔✔ - random and erratic
- kinetic energy
passive transport - correct answer ✔✔ movement driven by concentration/pressure differences
- equalizes gradient
active transport - correct answer ✔✔ cell provides energy to power movement
Diffusion - correct answer ✔✔ movement of molecules from region of higher concentration to
lower concentration
- driving force is kinetic energy
