Biology and Genetics
101624 questions • Page 321 / 2033
41) Endosome and lysosome play an important role in uptake of cholesterol (3) A.
41) Endosome and lysosome play an important role in uptake of cholesterol (3) A. Explain what happens in endosome and lysosome during LDL transport? B. What type of vesicles carri…
41) In compact bone, other materials to pass between o A) lamellae B) osteonic c
41) In compact bone, other materials to pass between o A) lamellae B) osteonic canals c) blood vessels D) canaliculi _connect adjacent lacunae, thereby lacunae, thereby providing …
41) In the absence of oxygen, E. coli induces expression of the enzyme nitrate r
41) In the absence of oxygen, E. coli induces expression of the enzyme nitrate reductase for anaerobic respiration which converts: a. NO3NO2 d. NOamino acids 42) Which of the foll…
41) Some cancers are caused by the overexpression of receptor tyrosine kinases (
41) Some cancers are caused by the overexpression of receptor tyrosine kinases (RTKs). Itis known that RTK signaling pathways commonly stimulate cell division. Why wouldthe overex…
41) The amino acid and ornithine a) Glutamie acid c) Alanine e) Arginine 42) The
41) The amino acid and ornithine a) Glutamie acid c) Alanine e) Arginine 42) The enzyme is the regulated arvd committing step to urea synthesis a) Carbamoyl phosphate synthetase b…
41) The assisted transport of a molecule across the cell membrane without an exp
41) The assisted transport of a molecule across the cell membrane without an expenditure of energy is known as what? A) diffusion B) facilitated transport C) active transport D) o…
41) The enzyme that provides a channel for protons to cross the plasma or mitoch
41) The enzyme that provides a channel for protons to cross the plasma or mitochondrial membrane in the production of ATP is called: a) Coenzyme A b) acetylcholinesterase c) cytoc…
41) The hydrocarbon tails of neighboring phospholipids within a lipid layer of a
41) The hydrocarbon tails of neighboring phospholipids within a lipid layer of a membrane interact A) hydrogen bonds B) Van der Waals C) Covalent bonds D) All of the Above E) A &a…
41) Three classmates from microbiology class are talking about drug resistance.
41) Three classmates from microbiology class are talking about drug resistance. They each 41) disagree about the definition of the term so they state his or her definition and giv…
41) What do imbrise\' of bacteria do? Catch food. A) ) Absorbing iquld food C) D
41) What do imbrise' of bacteria do? Catch food. A) ) Absorbing iquld food C) D) Help in sexual reproduction E) All of the above. Sticking to substrate. 42) Picking up naked extra…
41-Chemolitotrophs organisms A. oxidize inorganic ions such as nitrate or iron t
41-Chemolitotrophs organisms A. oxidize inorganic ions such as nitrate or iron to obtain energy B. contain photosynthetic pigments that convert solar energy into chemical energy C…
41. According to studies that have examined the variation between and within hum
41. According to studies that have examined the variation between and within human races, a. Most of the variation is within continental races b. Most of the variation is betw…
41. Acety Figure below. Which of the following would decrease this effect of the
41. Acety Figure below. Which of the following would decrease this effect of the acetylcholine? Icholine binds to a GPCR on heart muscle, making the stimulates a G protein, which …
41. An amino acid is bound to its matching tRNA (the tRNA with the correct antic
41. An amino acid is bound to its matching tRNA (the tRNA with the correct anticodon) by the enzyme a. amino acyl- tRNA synthetase b. amino acyl - tRNA integrase c. tRNA -amino ac…
41. An enzyme-substrate complex forms when substrate binds to an enzyme at the e
41. An enzyme-substrate complex forms when substrate binds to an enzyme at the enzyme's site. 42. An inorganic ion such as zinc or manganese that is needed for an enzyme to functi…
41. Channel proteins facilitate the transport of molecules by active transpont.
41. Channel proteins facilitate the transport of molecules by active transpont. 42. Channels allow the appropriate ions or small molecules to pass through 43. All of the following…
41. Channel proteins facilitate the transport of molecules by active transport (
41. Channel proteins facilitate the transport of molecules by active transport (a) True 42. Channels allow the appropriate ions or small molecules to pass through. (b) False (b) F…
41. Channel proteins facilitate the transport of molecules by active transport 4
41. Channel proteins facilitate the transport of molecules by active transport 42. Channels allow the appropriate ions or small molecules to pass hrough. 43. All of the following …
41. Checkpoints a. Controlled by chromosomes attachment to spindle 42. Restricti
41. Checkpoints a. Controlled by chromosomes attachment to spindle 42. Restriction point b. Hold sister chromatids together. c. Depolymerize to mediate chromosome-to-pole 43. Elec…
41. Does autonomic innervation enable different patterns of regional blood flow
41. Does autonomic innervation enable different patterns of regional blood flow within the body? (a) yes, or (b) no. 42. Can the opposing effects of norepinephrine within vascular…
41. Energy is the ability to do work. True or False 42. All organisms are in the
41. Energy is the ability to do work. True or False 42. All organisms are in the process of converting high quality energy into low quality energy. True or False 43. Define ecolog…
41. Flow rate between two wells in an aquifer increases when? a. the distance be
41. Flow rate between two wells in an aquifer increases when? a. the distance between the wells increases b. the head difference between the wells increases c. head difference bet…
41. Homologous chromosomes undergo synapsis during: a. anaphase L. b. prophase I
41. Homologous chromosomes undergo synapsis during: a. anaphase L. b. prophase I c. anaphase IT. d. telophase IL. 42. Duplicated centrioles move to opposite poles of a dividing ce…
41. In mammalian females, dose compensation occurs due to: A) hypoactivation of
41. In mammalian females, dose compensation occurs due to: A) hypoactivation of genes in both chromosomes X B) inactivation of an X chromosome C) hyperactivation of the X chromoso…
41. In the absonce of ox ygen, methylene blue A. blue 13. green C. purple D. col
41. In the absonce of ox ygen, methylene blue A. blue 13. green C. purple D. colorless E. red will appear 42.. An that magnifies slight differences in the refractive index of cell…
41. Integrase A. inserts the double-stranded retrovirus RNA into the host genome
41. Integrase A. inserts the double-stranded retrovirus RNA into the host genome. B. inserts the double-stranded retrovirus DNA into the host genome. C. removes the retrovirus RNA…
41. Lascaux and Altamira: a. b. c. are well-known Neandertal sites are 20,000 ye
41. Lascaux and Altamira: a. b. c. are well-known Neandertal sites are 20,000 year old campsites are famous for their elaborate cave paintings d. contained cave bear skulls Chapte…
41. Leaves are broad and thin to minimize their absorption of oxygen. 42. Water
41. Leaves are broad and thin to minimize their absorption of oxygen. 42. Water can hold more oxygen than air can. 4. ook ung e oendincustaceans and mousks,wle eternalf I feathery…
41. Match the enzyme classes with the reactions they catalyze (IUPAC’s Enzyme Cl
41. Match the enzyme classes with the reactions they catalyze (IUPAC’s Enzyme Classification). Hint: No need to memorize this. The class name indicates what type of reaction the e…
41. Microevolution is defined as: Changes in population size Changes in the freq
41. Microevolution is defined as: Changes in population size Changes in the frequency of alleles in the gene pool Changes in the composition of the population Emergence of new spe…
41. Microevolution is defined as: Changes in population size Changes in the freq
41. Microevolution is defined as: Changes in population size Changes in the frequency of alleles in the gene pool Changes in the composition of the population Emergence of new spe…
41. Muscle tissue is characterized by being _______. a. contractile and elastic
41. Muscle tissue is characterized by being _______. a. contractile and elastic b. long and thin c. elastic and strong d. contracti…
41. Muscle tissue is characterized by being _______. a. contractile and elastic
41. Muscle tissue is characterized by being _______. a. contractile and elastic b. long and thin c. elastic and strong d. contracti…
41. One threat to kelp forests is ____.? a. ?polluted water running off the land
41. One threat to kelp forests is ____.? a. ?polluted water running off the land and into coastal waters b. ?soil erosion c. ?human consumption d. ?increasing forest fires e. ?gro…
41. Onychophorans and tardigrades have jointed appendages. A. True B. False 42.S
41. Onychophorans and tardigrades have jointed appendages. A. True B. False 42.Spiders are crustaceans A. True B. False 43. Nematodes have musculature. A. True B. False 44. Mollus…
41. Over the past 50 yrars, what has happened to Co, levels in the atmosphene? C
41. Over the past 50 yrars, what has happened to Co, levels in the atmosphene? CNote stands for "parts per mallion") a) C, levels have steadily decreased by about 30% from ~375 pp…
41. Over the past 50 yrars, what has happened to Co, levels in the atmosphene? C
41. Over the past 50 yrars, what has happened to Co, levels in the atmosphene? CNote stands for "parts per mallion") a) C, levels have steadily decreased by about 30% from ~375 pp…
41. Removing which of the following glands would most likely have the most wide-
41. Removing which of the following glands would most likely have the most wide- reaching effect on bodily functions of an adult human? A) thyroid gland B) posterior pituitary gla…
41. The Green River Formation of Wyoming is contains rich oil shales. In what ge
41. The Green River Formation of Wyoming is contains rich oil shales. In what geologic environment were these shales deposited? 40. Mars is farther from the sun than the Earth. 39…
41. The first part of the small bowel is the: a. Jejunum b. lleum c. Duodenum d.
41. The first part of the small bowel is the: a. Jejunum b. lleum c. Duodenum d. Cecum 42. We have VOLUNTARY co ntrol of our internal urethral sphincter (b)False a. True 43. What …
41. The nature of warfare changed with the Assyrians due to which of the followi
41. The nature of warfare changed with the Assyrians due to which of the following being employed? a. Steel swords b. Horse and chariot c. Lightly armored infantry d. Gunpowder e.…
41. The normal (resident or indigenous) microbiota of an animal body does all of
41. The normal (resident or indigenous) microbiota of an animal body does all of the following except: B. Helps in training and development of the host immune system. C. Contribut…
41. The ventricular muscle fibers a.all contract at the same time b.have pacemak
41. The ventricular muscle fibers a.all contract at the same time b.have pacemaker to generate action potential c.both a and b d.neither a nor b 42. The cardiac muscle does not fa…
41. The wall of the ascending limb of the loop of Henle is impermeable to a. sod
41. The wall of the ascending limb of the loop of Henle is impermeable to a. sodium. b. potassium. C. Chloride. d. water. 42. Which of the following is not an example of acclimiti…
41. This common sediment is very porous but not permeable. A) sand B) clay C) si
41. This common sediment is very porous but not permeable. A) sand B) clay C) silt D) granite 42. Regional compression can cause this. A) volcanoes B) lithification C) gully erosi…
41. Three patches(A, B.and C) of natural pine forest were equal distance apart f
41. Three patches(A, B.and C) of natural pine forest were equal distance apart from eact (Picture the points of a triangle). Two of the patches (A and B) were conmected to each ot…
41. Three patches(A, B.and C) of natural pine forest were equal distance apart f
41. Three patches(A, B.and C) of natural pine forest were equal distance apart from eact (Picture the points of a triangle). Two of the patches (A and B) were conmected to each ot…
41. What does it mean to say that all organisms are related genetically 42. Comp
41. What does it mean to say that all organisms are related genetically 42. Compare AND contrast prezygotic and postzygotic isolating mechanisms. Describe some pre-zygotic isolati…
41. What is the activated group carried by S-adenosylmethionine? A. Methyl group
41. What is the activated group carried by S-adenosylmethionine? A. Methyl group B. Phosphate C. Glucose D. Carboxyl group 42. During the first stage of photosynthesis, the firs w…
41. Which of the following cell membrane components are present in plant cells b
41. Which of the following cell membrane components are present in plant cells but absent in animal cells? A) phospholipids B) gap junctions C) plasmodesmata D) proteins E) carboh…
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