BIOL 0280 Midterm: Exam3 2006 key

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turquoisegnu128

31 Jan 2019

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The three molecules shown below are classified as. These molecules are derived from amino acid precursors by (fill in the blank by giving the type of reaction. ) Fill in the blanks above by nming the corresponding amino acid precursor for each molecule: [6 points] For each conversion shown at the left, indicate (by filling in the blank) which of the nucleotides from the list at the right regulate that conversion. Some conversions may be regulated by more than one nucleotide from the list, and if so, be certain to indicate all regulators. (but be careful, wrong guesses will be penalized. ) You do not need to use all nucleotides in the list. Sis number _____exam iii 2006____________: [6 points] You are given two solutions containing different purified dnas. One is from the bacterium p. aeruginosa and has a g + c content of 68%, whereas the other is from a mammal and has a g +

Related Questions

Question 1

Which is a population?

		All the members of a species inhabiting a given location.
		All the interacting populations in a given area.
		The living community and the physical environment functioning together as an independant and relatively stable system.
		All of the above

5 points

Question 2

Which is not an abiotic factor?

		Intensity of light
		type of substratum
		range of temperatures
		living things

5 points

Question 3

What does the fertility rate have to be in order to keep a population stable (neither increasing or decreasing)?

		1
		2
		3
		4

5 points

Question 4

Japan's population is falling due to a low fertility rate.

True

False

5 points

Question 5

When the population remains relatively constant over a number of years this is known as

		steady state
		abiotic state
		biotic state
		Both abiotic and biotic states

5 points

Question 6

Which are the living components of the environment?

		biotic factors
		abiotic factors
		neutrality factors
		non-organic factors

5 points

Question 7

What is carrying capacity?

		The maximum number of organisms the resources of an area can support.
		The amount of abiotic factors in an area.
		The amount of energy.
		The density of a star.

5 points

Question 8

Which can synthesize their own food?

		heterotroph
		herbivore
		autotroph
		carnivore

5 points

Question 9

Which is an example of a saprophyte?

		vulture
		bacteria
		mouse
		frog

5 points

Question 10

This consumes both plants and animals.

		Carnivore
		Herbivore
		Omnivore
		Tachivore

5 points

Question 11

Global warming might actually cause global freezing.

True

False

5 points

Question 12

There are good odds that a future virus can cause the extinction of the human race.

True

False

5 points

Question 13

A heterotroph can make its own food.

True

False

5 points

Question 14

According to the 1st Law of Thermodynamics, disorder always increases.

True

False

5 points

Question 15

In 5 billion years the Sun will expand and burn up the Earth.

True

False

5 points

Question 16

Einstein stated that World War 4 will be fought with sticks and stones.

True

False

5 points

Question 17

Which is not true of the First Law of Thermodynamics?

		Energy cannot be created
		Energy cannot be destroyed.
		Energy can change forms.
		All are true.

5 points

Question 18

According to the Second Law of Thermodynamics, the heat death of the universe is its ultimate fate.

True

False

5 points

Question 19

Which is organic?

		CH₄
		CO₂
		H₂O
		N₂

5 points

Question 20

The Sun and the core are the primary energy sources for the Earth.

True

False

limejackal967

Question 1 Which characteristic(s) of mitochondria andchloroplasts supports their existence as independent prokaryoticcells that were engulfed by eukaryotic cells?

Question 1 options: their size presence of their own DNA theirself-replication by binary fission all of these characteristicssupport that mitochondria and chloroplasts were independentprokaryotic cells that were engulfed by eukaryotic cells

Question 2 Mitochondria originated from __________, which wereengulfed during __________ endosymbiosis. Chloroplasts originatedfrom __________, which were engulfed during __________endosymbiosis.

Question 2 options: aerobic bacterium; primary; cyanobacteria;primary anaerobic bacterium; primary; cyanobacteria; secondarycyanobacteria; primary; aerobic bacterium; secondary cyanobacteria;primary; aerobic bacterium; primary

Question 3 Saved Secondary endosymbiosis refers to the processby which

Question 3 options: prokaryotes acquired chloroplasts.prokaryotes acquired mitochondria. eukaryotic cells engulfedcyanobacteria. eukaryotic cells with mitochondria engulfed aphotosynthetic.

Question 4 Saved Though there are exceptions, __________ is acommon reproductive strategy among protists.

Question 4 options: sexual reproduction by mitosis asexualreproduction by mitosis binary fission asexual reproduction bymeiosis

Question 5 Protists with chloroplasts are __________ that maketheir own food. Protists that lack chloroplasts ___________ and arethus heterotrophic; this group is generally known as__________.

Question 5 options: parasites; ingest food; protozoansheterotrophs; photosynthesize; plankton photosynthetic autotrophs;ingest or absorb food; protozoans green algae; are parasites;plankton

Question 6 An endosymbiotic protist that does not cause diseaseis likely

Question 6 options: plankton. a protozoan. a parasiticheterotroph. a photosynthetic autotroph.

Question 7 The euglenoids are

Question 7 options: euglenoids can be all of these things.photosynthetic organisms with chloroplasts. heterotrophic organismswithout chloroplasts. flagellated freshwater unicellularorganisms.

Question 8 African sleeping sickness and Chagas disease arecaused by

Question 8 options: amoeboids found in zooplankton. euglenoidswith chloroplasts. photosynthetic protists. parasiticflagellates.

Question 9 Amoeboids feed by

Question 9 options: photosynthesis, by which they make their ownfood in their chloroplasts. phagocytosis, which occurs aspseudopods surround and engulf prey. decomposing dead organisms.absorbing nutrients from their surroundings.

Question 10 Foraminiferans and radiolarians

Question 10 options: share a clade with the amoeboids. areamoeboids with shells called tests. have pseudopods, but are notamoeboids. do not have pseudopods, though they do have shells,called tests.

Question 11 A ciliate might have __________, which dischargestructures that are useful in defense or prey capture.

Question 11 options: anal pores trypanosomes contractilevacuoles trichocysts

Question 12 Ciliates reproduce __________ and have __________ tocontrol metabolism and reproduction.

Question 12 options: both sexually and asexually; two types ofnuclei sexually; a single nucleus asexually; two types of nuclei bybinary fission; a nucleoid

Question 13 The nonmotile apicomplexan Plasmodium vivaxcauses

Question 13 options: Chagas disease. vaginitis. African sleepingsickness. malaria.

Question 14 Which phase of Plasmodium vivaxâs life cycle takesplace in the human liver? In the mosquito carrier?

Question 14 options: the sexual phase; the asexual phase theasexual phase; the sexual phase

Question 15 __________ molds are found in forests, fields, andin soil. They exist in two forms, individual amoeboid __________and diploid multinucleated __________.

Question 15 options: Slime; sporangium; flagellated cells Water;sporangium; flagellated cells Slime; cellular slime molds;plasmodial slime molds Water; cellular water molds; plasmodialwater molds

Question 16 __________ are among the most numerous of allunicellular algae in the oceans and produce a major portion of theearths oxygen supply.

Question 16 options: Red algae Sporozoa DinoflagellatesDiatoms

Question 17 The phenomenon known as red tide is caused by

Question 17 options: population explosions in dinoflagellates.population explosions in red algae. built up remains of diatoms.bacterial invasion of the phytoplankton.

Question 18 The seaweed observed on the shoreline in the northtemperate zone, sometimes called kelp, is

Question 18 options: green algae. blue-green algae. red algae.brown algae.

Question 19 Ice cream, sherbet, and cream cheese are made fromalginate, a pectinlike material produced by __________ algae. Anemulsifying agent used in cosmetics and chocolate, as well as thewrappings for sushi rolls are made from extracts or parts of__________ algae.

Question 19 options: brown; green brown; red red; green green;brown

Question 20 Saved Green algae are believed to be closely relatedto the first plants, and are classified as plants by someauthorities, because both groups

Question 20 options: have a cell wall containing cellulose.possess chlorophylls a and b. All of these choices accuratelycomplete this statement. store reserve food in the form ofstarch.

emeraldpanda238

Question 1

Where is growth hormone produced?

		Pituitary Gland
		Kidneys
		Pancreas
		Thyroid

5 points

Question 2

Which neurotransmitter is linked to pleasure?

		Acetycholine
		Dopamine
		Histamine
		Epinephrine

5 points

Question 3

Which neurotransmitter is linked to OCD and depression?

		Epinephrine
		Acetylcholine
		Dopamine
		Serotonin

5 points

Question 4

Which part of the brain is linked to mystical experiences?

		Right Temporal Lobe
		Frontal Lobe
		Occipital Lobe
		Left Temporal Lobe

5 points

Question 5

Which coordinates and balances the action of muscles?

		cerebrum
		cerebellum
		Medulla Oblongata
		Spinal Cord

5 points

Question 6

	What is the function of amylase?

		Breaks down starches
		Breaks down proteins
		Breaks down fats
		Breaks down triglycerides

5 points

Question 7

Where does most digestion occur?

		large intestine
		Stomach
		Small intestine
		Mouth

5 points

Question 8

Which vitamin in high dosages reduces pain?

		B
		C
		A
		D

5 points

Question 9

Which vitamin increases fertility?

		A
		B
		C
		E

5 points

Question 10

Which is not fat soluble?

		A
		B
		E
		K

5 points

Question 11

Which is not a component of the blood?

		platelets
		white blood cells
		red blood cells
		all are components of the blood.

5 points

Question 12

Protein digestion begins in the small intestine.

True

False

5 points

Question 13

What happens an instant before inhalation?

		Lungs expand and pressure falls
		Lungs expand and pressure increases
		Lungs contract and pressure increases
		Lungs contract and pressure decreases

5 points

Question 14

	What is the correct sequence for digestion?

		mouth-large intestine-stomach-small intestine
		mouth-stomach-small intestine-large intestine

5 points

Question 15

Which is not part of a neuron?

		cell body
		axon
		dendrite
		All are parts.

5 points

Question 16

	Which is true?

		thick filaments are composed of actin
		thin filaments are composed of myosin.
		thick filaments are composed of myosin
		thick filaments slide over thin filaments.

5 points

Question 17

Which hormone reduces testosterone levels?

		Growth Hormone
		Melatonin
		Insulin
		Thyroxin

5 points

Question 18

Which vessel(s) is the most oxygenated?

		pulmonary veins
		pulmonary arteries
		aorta
		hepatic artery

5 points

Question 19

You can make a person you know appear by stimulating a part of the brain with electricity.

True

False

5 points

Question 20

Einstein had a thicker corpus callosum than a normal person resulting in better communication between both sides of his brain.

True

False

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BIOL 0280 Midterm: Exam3 2006 key

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