Biomolecules Questions and Answers

Completion Status STION 4 of the G 1

Draw two water molecules Use you lecture notes Label all the chemical bonds within each molecule and between two of them and show charges

What do prokaryotes and eukaryotes have in common in terms of gene regulation A Both regulate protein production at all stages of transcription and translation B Both control whether RNA polymerase can bind to and transcribe genes OC Both have proteins that can bind to mRNA and prevent translation OD Both use enhancers far from the gene to regulate the rate of transcription

Which sentence describes a bone cell and a nerve cell in a person s body A Their genes change as their structures change during cell differentiation O B They have identical DNA but each cell expresses a different set of genes C Each cell contains only the genes that are needed for its unique function D They have the same genes and all of those genes are expressed

The diagram shows Hox genes and body segments in fruit flies Head Fruit fly embryo Thorax Abdomen HHH Hox genes Adult fruit fly Why does the developing embryo grow wings only in the thorax segment OA Only the cells in the thorax segment contain the genes needed to build wings OB Hox genes produce transcription factors that regulate genes for wings so they are turned on only in the thorax segment OC After the wings develop in the thorax segment Hox genes turn off those genes in the other segments D The genes for building wingg wood firot in th

Which statement best describes how genes affect the functions of cells A All genes are expressed at the same time OB Some genes are expressed and some are not C Most genes are not present in every cell s DNA D New genes form in a cell as they are needed

2 a On the following scale how would you rate your success in resolving managing conflict overall using the current conflict resolution style most of the time 1 not successful 2 a little successful 3 successful 4 very successful

Choose the word pair that correctly completes the analogy imminent approaching A ignorant unlearned B amusing serious C torrential scant

me pentose sugar in DNA is and in RNA is

Examples of disaccharides two simple sugars joined together include Write the linear and the ringed molecular structure of glucose and

Name the four classes of macromolecules that comprise or make up living things a b C d

Molecular clocks are usually ca 1 guesses about the rates

When sunlight strikes the side of a building what form of energy is it transformed to O A Thermal energy OB Kinetic energy OC Gravitational potential energy D Chemical energy ANOWE r Smar

Transport proteins within a cell membrane pick up and release which of the following across the membrane a sodium and potassium b acids and enzymes c hydrogen and nitrogen d fats and carbohydrates e calcium and phosphorus

Proteins acts as buffers because they a help maintain a constant pH Ob help emulsify fats O c help protect against plaque buildup Od facilitate chemical reactions O e prevent degradation of proteins

24 25 6 3 7 The primary structure of proteins is the O a amino acid sequence b polypeptide interactions c polypeptide tangles Od double helix e polypeptide shapes

O Which of the following is the primary factor that differentiates one amino acid from another a the central carbon atom Ob the side group O c the amino group Od the acid group Oe the presence of a central hydrogen atom

15 16 7 8 O O Sulfur is an element found in some amino acids a True b False

Read the following stanza The snow lies deep upon the ground As white as it can be The woods are calm without a sound From any twig or tree Then one hears a distant hound And there is no reply What is an effect of the rhyme in this stanza OA The rhythm of the syllables is broken OB The last line stands out from the others OC The setting of the story is drawn vividly D The meaning of the poem bocor

10 Place the correct number 2 4 Space 3 5 dots dendrite synapse vesicle axon neurotransmitter

7 What is the purpose of the nervous system

ter You What are the main functions of the endocrine system List three glands of the endocrine system and describe what each one does in the body

After You How does the nervous system help keep the body healthy and active How are neurons similar to other cells in the body How do they differ

Define the term Cili a O Affection Green Giddy eyelid eyelash a living together

Related to function how would you describe this structure O selectively impermeable O impermeable Ch ANNA O selectively impermeable O impermeable selectively permeable freely permeable

What is the total magnification if you are using the oil immersion lens 10 000x 1000X 100x

What color can your bacteria be after a simple stain Purple All of the above

What color is Safranin O Red Blue O No answer text provided O Purple

How do you calculate total magnification O Subtract the eyepieces O Add the eyepieces Multiply by 10 O Multiply by 100

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All of the following are examples of different types of microbiological media except selective media Opetri dish O broth O enriched media agar D

multiple choice questions on this qu uestion 10 hat type of isolation technique is mos

ed Feb 15 at 6 26pm uiz Instructions e are 10 multiple choice questions or Question 6

ng Time 55 minutes 38 seconds Completion Status STION 10 of the following organelles cell struct uoles used for storage of opermur

Take Test C X F1101 nent take launch jsp c s 01 second

Completion Status ESTION 8 of the following is found in animal sosomes

2 If you sensed a tiger do you predict heart rate will increas Answer H Reflex Loop Notice how we have predicted the pathway from the stimu This is a simple nervous reflex loop Reflex loops are a major theme in physiology since they sh and responds to internal and external stimuli 1 Choose one stimulus signal from the second table on page loop to predict the response of the body to a tiger A Stimulus B Receptor Sensor C Input Afferent pathway D Integrating center E Output Efferent pathway

Toward the end of the Proterozoic eon multicellular animals emerged The first animals were 1 Tetrapods O2 Reptiles 3 Fish 4 Invertebrates

O 1 the earliest known arthropods 2 autotrophs living around deep sea vents 3 heterotrophs found in marine environments 4 layered rocklike structures formed by cyanobacteria 5 fossilized coral reefs

1 chimpanzees and gorillas O2 arboreal primates 3 all forms of humans extinct and extant 4 the lesser apes

How did the earliest single celled microorganisms produce energy to drive metabolic processes 1 Aerobic cellular respiration 2 Sulfuric acid respiration 3 Anaerobic cellular respiration 4 Both aerobic and anaerobic cellular respiration 5 Sulfuric acid aerobic and anaerobic respiration

Which of the following provides the best evidence that modern humans are evolving 1 Adult humans of northern European descent can readily digest lactose 2 Adult humans of American descent eat fruits and vegetables grown all over the world 3 Modern humans have opposable thumbs 4 In humans of northern European descent blue eyed individuals are at greater risk of vitamin D deficiency than brown eyed individuals

The first bilateral animal emerged during the Ordovician Period Fossils of this organism were discovered in Sout Africa 1 This statement is FALSE 2 This statement is TRUE

Which of the following is NOT a primate characteristic 1 claws on each digit 2 grasping hand 3 forward facing eyes 4 complex social behavior 5 large brain

How does a protein s shape relate to its amino acids A A protein s shape depends on whether it is made up of amino acids or nucleotides B A protein s shape is determined by how amino acid side chains interact C Proteins are made up of only one kind of amino acid but each protein s shape depends on how many amino acids it has D Proteins always have the same amino acid sequence but can fold into a variety of shapes

Which action must take place before transcription can begin A mRNA leaves the nucleus and enters the cytoplasm B RNA polymerase unwinds the DNA double helix OC Polypeptides use mRNA to make RNA polymerase D tRNA molecules bring amino acids to a ribosome

ow do the endoplasmic reticulum and Golgi apparatus interact during rotein production A Vesicles in the endoplasmic reticulum modify and fold proteins that are built in the Golgi apparatus OB The Golgi apparatus attaches to the endoplasmic reticulum and makes proteins that function when embedded in a membrane OC mRNA comes from the Golgi apparatus and is translated by the endoplasmic reticulum into polypeptide chains OD The Golgi apparatus receives proteins from the rough endoplasmic reticulum and stores them for later use

Question 4 of 10 What happens during translation A Amino acids carried by tRNA are used by rRNA to build a polypeptide chain B Amino acids carried by rRNA are used by tRNA to build a polypeptide chain C RNA polymerase unwinds a section of DNA The DNA is used as a template to build a strand of mRNA D rRNA unwinds a section of DNA to allow RNA polymerase to copy a gene

oteins are made up of chains of amino acids Amino acids have amino oups which are made up of which two types of atoms OA Nitrogen and oxygen O B Carbon and hydrogen OC Hydrogen and nitrogen D Carbon and oxygen

Based on Richard Wagner s comment I wish I could score everything for horns we can assume 4 A that he is fond of the sound of horns B that he doesn t like any other instrument C that he thinks horns are the easiest instrument to play