Biology 1404 2023 Study guides, Class notes & Summaries

Biology 1404 Practice Questions for Test 3 | Questions and 100% Correct Answers | Graded A+ 1. Which structure should the fungus use to extract nutrition from the phloem cells? A) rhizoids (B) haustoria (C) arbuscules (D) sporangiophores (E) stolons 2. Which of the following describes the protist phyla? (select all that apply) o Polyphyletic o Eukaryotic o They are only multicellular o They lack membrane bound organelles o They are Archaea 3. In general, all members of Kingdom Animalia ...

If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it have? - -54 -Atoms that vary in the number of neutrons found in their nuclei are called - -isotopes -Potassium has an atomic number of 19. What is its electron configuration - -shells 1, 2 and 3 are full and shell 4 has one electron -Which type of bond represents a weak chemical bond - -hydrogen bond -Which of the following statements is not true - -Water is the most abundant molecule in the Earth...

Define Evolution - -the process by which modern organisms have descended from ancient ones -What is a theory - -a well tested explanation of a natural phenomena -How are theories developed? - -theories are developed by frequent testings of hypotheses -Who established the Theory of Evolution by Natural Selection? - -Charles Darwin -What was the name of the book he published? - -The Origin of Species -What island is famous for its relationship to the theory? - -the Galapagos Islands...

What features are common to all living organisms? - -enclosed by a membrane presence of cytoplasm presence of DNA presence of ribosomes -How do electrons behave when they absorb or lose energy? - -Electrons move to higher or lower shells by absorbing (higher) or releasing (lower) energy -What is a nonpolar covalent bond? - -The atoms share the electrons equally -What is a polar covalent bond? - -One atom is more electronegative, and the atoms do not share the electron equally (crea...

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 ...

acetyl CoA - -Is formed when pyruvate first enters into the mitochondria via active transport. -aerobic respiration - -Respiration that requires oxygen -anaerobic - -Process that does not require oxygen -anaerobic cellular respiration - -the process by which cells obtain energy from an energy source without using oxygen -ATP synthase - -Large protein that uses energy from H+ ions to bind ADP and a phosphate group together to produce ATP -chemiosmosis - -the use of energy in a H+ g...

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 ...

entire organism - -In unicellular organisms, division of one cell reproduces the __________. -Cell division - -_________ enables multicellular eukaryotes to develop from a single cell and, once fully grown, to renew, repair, or replace cells as needed. -Mitosis - -When does tissue repair occur? -Mitosis - -When does embryonic happen? -Mitosis - -When does development occur? -Mitosis - -When does tissue turnover (renewal) occur? -Meiosis - -When does reproduction occur? -Germ...

Gene expression - -The process by which DNA directs protein synthesis and has two stages - transcription - translation -Transcription - -the synthesis of RNA using information in DNA - produces messenger RNA (mRNA) -Translation - -the synthesis of a polypeptide using information in the mRNA -Ribsosomes - -the sites of translation -Translation in prokaryotes - -translation of mRNA can begin before transcription has finished (coupled) -Transcription in eukaryotes - -transcripti...

the white allele is recessive - -white flowering plants were not observed in the F1 generation following a cross of true breeding purple and white flowering plants in Mendels monohybrid cross experiment because -dipliod - -human somatic cells are -16 - -given 4 different charateristics assuming independent assortment how many different types of gamestes are possible -on the same chromosome - -if two genes are linked they are -dividing white blood cells - -which cell would be best to ...