Bio ch 8, 10, 11 test Flashcards
What do organisms depend on?
light and photosynthesis
___________ is considered energy units of light.
Photon
Visible light spectrum is between __________ and __________ nanometers.
400-700
____________ is the main by product for photosynthesis we need for light.
Oxygen
______________ is a primary pigment for photosynthesis.
Chlorophyll A
_____________ and ______________ are considered accessory pigments.
Chlorophyll B and Carotenoids
A ____________ is a molecule that absorbs light.
Pigment
_______________ are flat sacs within internal membrane of chloroplast and is associated with photosynthesis.
Thylakoids
_____________ is an organelle where photosynthesis occurs.
Chloroplast
Photosystems are clusters of _____________ and accessory pigments.
Chlorophyl
Mitosis involves replication of ___________ to make an identical daughter cell.
DNA
_________ protein is responsible for making septum that helps separate bacterial cells.
FTZ
Bacteria reproduce through asexual process called ___________.
Binary fission
What are the functions of Mitosis?
Cell replacement, Growth, damage cell, reproduction
What are the stages of Mitosis?
Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis
What are the 2 stages Eukaryotic cells spend its life in?
Interphase, Mitosis
_______________ has different check points to make sure everything is doing ok.
Cell cycle
____________ holds all instructions for your cells including protein synthesis and needs to be faithfully replicated.
DNA
Before cells divide it needs to replicate ___________.
DNA
____________ is a component of cytoskeleton that attaches to chromosome to separate DNA.
Spindle
What stage does cells spend most of its life?
Interphase
______________ is when DNA is divided between cells
Mitosis
_____________ is the physical separation of daughter cells.
Cytokinesis
What phase is the primary growth of cells?
G1
What phase is when DNA is replicated?
S
What phase is when tubilen is produced for microtubules?
G2
____________ is when nuclear envelopes dissolves and chromatin becomes visible.
Prophase
____________ is when chromosomes line up on the equator.
Metaphase
____________ is when chromosomes are pulled to opposite poles of the cell.
Anaphase
____________ is when Nuclear envelope reforms and gene expression is turned back on.
Telophase
___________ checkpoint is most veritable to stimuli.
G1S
___________ checkpoint has enzymes proofread DNA.
G2M
____________ checkpoint is the last one before anaphase.
Late spindle
Animal cells achieve cytokinesis by forming a ___________.
Cleavage furrow
Plant cells use ____________ for cytokinesis.
Cell plate
____________ is caused by lost of cell cycle regulation and it contains uncontrolled cell growth and division.
Cancer
Surgery, chemo, hair loss, nausea, and vomiting are the side effects of ___________.
Cancer
___________ caused in early stages, usually can be removed.
Cancer
The ___________ is localized to one area.
Glocalidous
The __________ spreads through out the body,
Mastodic
A _________ is an abnormal mass of growing cancerous cells.
Tumor
___________ enzymes are primarily mechanisms to control the cell cycle.
CDK
P53 gene acts as an ____________.
Accessive trait
__________ genes when mutating signal for growth factors.
Proto onco
_________ is program cell death.
Apoptosis
__________ is the reduction division and also produces gametes.
Meiosis
_____________ is crossing over, random orientation on spindles, independent assortment, and random fertilization.
Meiosis genetic diversity
_____________ produces and provides different individuals.
Sexual reproduction
____________ is formed when egg and sperm fuse together.
Zygote
____________ is the murder of gametes of male and female.
Fertilization
__________ cells are in the testes an ovaries
Sex
________________ chromosomes are chromosomes that look alive an carry the same genetic sequences.
Homologous
Humans have ________ pairs of chromosomes.
23
We are diploid= ___________.
2N
_______________ cells undergo meiosis and produce 4 gametes.
Diploid
_______________ is when a human zygote has 45 or 47 total chromosomes.
Non disjunction
__________ is where crossing over occurs.
Prophase 1
__________ is where spindles have homologous chromosomes line up on equator of the cell.
Metaphase 1
___________ is where independent assortment occurs.
Anaphase 1
__________ is where cytokinesis occurs.
Telophase 1
___________ is where spindle forms after meiosis 1.
Prophase 2
___________ is when non identical sister chromatids line up on the equator.
Metaphase 2
___________ is the last physical separation of material.
Anaphase 2
___________ is when 4 haploid gametes form.
Telophase 2
What is the photosynthesis reaction formula?
6CO2 + 12H20—> C6 H12 O6 + 6H20 + 602