Alternation of generations - Cycle has BOTH multicellular haploid & multicellular diploid forms
Are the most visible life stages of the land plant groups sporophytes (2n) or gametophytes (n)? -
All are sporophyte except nonvascular is gametophyte
Changing-environment hypothesis - offspring that ...
Binghamton Bio 114 - Exam 3 Alternation of generations - Cycle has BOTH multicellular haploid & multicellular diploid forms Are the most visible life stages of the land plant groups sporophytes (2n) or gametophytes (n)? - All are sporophyte except nonvascular is gametophyte Changing -environment hypothesis - offspring that are genetic clones of their parents are unlikely to thrive if the environment changes Crossing over - homologous chromosomes exchange genetic information Diploid dominant life cycle - Similar to animal life cycle (majority of life is in diploid phase) Haploid dominant life cycle - Spend majority of life in haploid phase ex. Plasmodium How did mitochondria and chloroplasts evolve? - Endosymbiosis theory: evolved from bacterial cells How did the nuclear envelope evolve? - Increased infoldings of prokaryotic plasma membranes led to the evolution of the nucleus and evolution by natural selection. Independent assortment - random aligning of homologous chromosomes Land plants evolved from: - aquatic green algae Should stomata be open day and/or night? - Having stomata open at night instead of daytime would reduce water loss; more stomata should be open in the day b/c the Calvin Cycle requires CO2 Significance b/w protists and public health? - Malaria & other human pathogens/parasites Under what conditions are stomata likely to be opened? Closed? - - high water availability = open stomata - low water availability = closed stomata What are common examples of protists? - Plasmodium falciparum (Malaria) - example of haploid dominant What are the 3 different modes of reproduction and how much genetic diversity do they produce? - Asexual (mitosis) - LEAST genetic variation Sexual (self -fertilization) - MORE genetic variation Sexual (cross -fertilization) - MOST genetic variation What are the advantages of infoldings? - * Increases SA:V - more infoldings = more ATP produced, more waste excreted, & more nutrients absorbed * as a cell gets bigger, SA:V gets smaller What are the advantages of mitochondria and chloroplasts in eukaryotic cells? - Enable increased ATP/energy production - mitochondria: aerobic respiration vs. glycolysis - chloroplasts: autotrophy vs. heterotrophy What are the characteristics of protists? - - most diverse group: uni- or multicellular diverse life cycles diverse metabolisms (hetero & photo) mobility - live in moist environments
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller PatrickKaylian. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
