Biology 1404 Study guides, Class notes & Summaries

When a cell targets a cell connected by gap junctions When a ligand-gated K+ channel opens, K+ leaves the cell. Why? A. There is more K+ outside of the cell than inside B. The outside of the cell is more negative than the inside C. There is more K+ inside the cell than outside D. K+ is pumped against its concentration gradient using the energy of ATP hydrolysis C. There is more K+ inside the cell than outside G-protein coupled receptors function? They bind extracellular ligands and trans...

What are some biotic examples? species interactions, distribution, and quantity of individual species groups or groups of species, and invasive or keystone species. species richness how many different species are there and a simple count. species evenness takes into account the relative abundance of each species. biodiversity index # of species in an area/ # of individuals in an area Alpha diversity the diversity within a particular area or ecosystem beta diversity a comparison of di...

what do biologist use to characterize and manipulate DNA molecules? how are sticky ends usefull in DNA fragments? restriction endonuclease;;;;; because DNA fragment from different sources but with the same complementary ends can be pasted together to form new hybrid molecules what is pBR322, that we used in lab? a plasmid which are small circular DNA molecule found in bacteria and yeast we did we do in lab to the pBR322 plasmid? we digested it in 3 different restriction enzymes ...

BIOLOGY 1404 EXAM CHAPTER 4-7 EXAM #2 REVIEW. BIO 1404 OPENSTAX CHAPTER 4-7 EXAM #2 REVIEW CH4 - Cell structure CH5 - Structure and function of plasma membranes CH6 - Metabolism CH7 - Cellular respiration CH4: Cell structure 4.1 A cell is the smallest unit of living things Levels of organization (simplest to complex): cells, tissues, organ, organ system, organism Cells are split into 2 categories: prokaryotic and eukaryotic Bacteria and archaea are PROKARYOTIC Both animal and p...

Allelopathy - -The idea that plants can chemically influence each other -Thomas Chamberlin - -Danger of love, makes it easy to ignore competing facts if too attached to one idea -Frits Wents & James Bonner - -Cal tech scientists came up with allelopathy -Cornelius Muller - -Agreed with allelopathy. Hid results that disagreed with allelopathy, never published data on rabits -Bruce Bartholomew - -Sets up a paper about cows causing zones of no growth and believed allelopathy wasn't tru...

main goal of this chapter - --Explain the "central dogma" of DNA-protein synthesis -Describe the genetic code and how the nucleotide sequence prescribes the amino acid and the protein sequence -The cellular process of _____ generates messenger RNA (mRNA) - -transcription -messenger RNA (mRNA) - -A type of RNA, synthesized from DNA and attached to ribosomes in the cytoplasm; it specifies the primary structure of a protein. -a mobile molecular copy of one or more genes with an alphabet o...

Most likely, mitochondria and chloroplast evolved from: - -Bacteria -What three overlapping processes are involved in development? - -Growth, morphogenesis and differentiation ------ is a type of ground tissue composed of cells having tick, often lignified secondary cell walls. - -Sclerenchyma -A mature sieve element does NOT normally have: - -A nucleus -The function of companion cells is thought to be: - -Delivery of substances to sieve-tube elements -Trichomes are: - -Appendages...

matter - -anything that takes up space and has mass -elements - -any substance that cannot be broken down into simpler substances -atom - -the basic smallest unit of a matter that has all the chemical properties of an element -proton - -A positively charged particle that is part of an atom's nucleus. -neutron - -A small particle in the nucleus of the atom, with no electrical charge -electrons - -Negatively charged subatomic particles found in various energy levels (orbital shells...

Helps to make concepts clear through points and tables, written in a simple way for better understanding.

what's the central dogma of genes&proteins? what's an exception to this rule? - -DNA (transcription) - RNA (translation) - protein. reverse transcription. -in ___, the ___ sequence turned to ___ sequence *(_-_) - -transcription - DNA - RNA - T-U -in ___, the "___ ___" stru happens where the ___ is ___ start of ___. it runs in ___ ___, small __ ___. - -translation - Christmas tree - tip - RNA's - transcription - one direction - to big -the ___ starts ___. it is a ___ ___ & is __ bp ...