Biomolecules Questions and Answers

What evidence suggests that mitochondria might have evolved before chloroplasts Mitochondria can sometimes divide to produce chloroplasts Only mitochondria have their own DNA Some mitochondria have chloroplasts inside of them Almost all eukaryotes have mitochondria but only some have chloroplasts

How do radioactive isotopes differ from isotopes Radioactive isotopes have more neutrons than do isotopes Radioactive isotopes are stable isotopes are unstable Radioactive isotopes have fewer neutrons than do isotopes Radioactive isotopes are unstable isotopes are stable

If one strand of a DNA double helix has the sequence TACCGAT what will be the sequence of the other strand TACCGAT UACCGAU ATGGCTA

What name is given to the functional compartments of a cell genomes nuclei genes organelles

OOOC 24 Question 27 1 point 4 Listen What are genes composed of insulin organelles tissues DNA

Beryllium s atomic mass is 9 and its atomic number is 4 How many protons are found in a beryllium atom 9 13 4 5

Saturated fats are saturated with O carbon nitrogen hydrogen oxygen

Enzymes are amino acids monosaccharides lipids Oproteins

is a steroid Omega 3 Sucrose Amino acid Testosterone

How many moles Ba OH 2 are there in 3 95 x 1023 Ba OH 2 formula units 18 0 mol 0 333 mol 7 90 mol 0 656 mol

3 What nucleotide will be added to strand B next

A prezygotic mechanism is a reproductive isolating mechanism that prevents maturation and reproduction in offspring from interspecies reproduction O True O False

Which term refers to the evolution of similar traits in distantly related species divergent evolution convergent evolution adaptive radiation coevolution Each normal human possesses in his or her body cells 2 pairs of sex chromosomes and 46 pairs of chromosomes O2 pairs of sex chromosomes and 23 pairs of chromosomes 1 pair of sex chromosome and 46 pairs of chromosomes 1 pair of sex chromosome and 22 pairs of chromosomes Sen 32 31 1 poil 1 po

Which is the longest phase of the cell cycle O Interphase O Metaphase O Anaphase O Telophase The genotype defines O The physical appearance of an organism O One allele of a gene The combination of two alleles All of the above

Categorize each statement as true or false The SI V Scope is a virtual microscope program which simulates the use of a compound light microscope The stage adjustment knobs are used to center the slide on the stage prior to focusing The V Scope should be used whenever a microscope is called for in the procedures of a lesson Virtual slides are located in the view slide tab True False

Which proteins are not synthesized on ribosomes bound with the RER membranes Select one a membrane b antibodies O c cytosolic d proteins of the extracellular matrix

Among the proteins released by regulated secretion in which secretory vesicles are stored inside the cell until a receiving of the signal for exocytosis are Select one a collagen b components of plasma membrane c components of extracellular matrix d peptide hormones e g insulin glucagon

Which of the following is a mineral Steel Ice Wood Glass Granite Rock

In the decay of a radioisotope after two half lives have elapsed what proportion of the original parent element w remain O 0 50 0 75 O 0 125 O 0 25 Isotope amount 100 90 80 23292 70 60 30 20 10 D Graph of Radioactive Isotope Decay Parent Isotope Daughter Product 2 3 45 Age number of half lives 0 9 O 10

Multiple Choice O O O the net movement of water from an area of low water concentra to an area of high water concentration the movement of water across a semipermeable membrane the active transport of water across a semipermeable membran endocytosis of water

What determines the direction of diffusion Multiple Choice O type of solvent phase of matter type of solute concentration gradient

During which stage of the digestion process does the physical and chemical breakdown of complex food molecules into smaller molecules occur O absorption O egestion O ingestion O digestion Which of the following is cellulose an example of O an enzyme a disaccharide O a monosaccharide a polysaccharide

Which of the following is a hereditary disease tuberculosis O influenza pneumonia cystic fibrosis Which part of the blood is necessary for clotting neutrophils O erythrocytes Olymphocytes platelets

Which term describes the tissue that divides a human body cavity into smaller parts hemolymph diaphragm ventricle O septum Which of the following is an example of a monosaccharide starch O sucrose O glucose O lactose 1 point 1 point

What does an organism need in order to grow build and repair tissues and to produce energy triglycerides hormones nutrients enzymes

The correct order of the Eras of the Phanerozoic from oldest to youngest is Cenozoic Paleozoic Mesozoic O Paleozoic Mesozoic Cenozoic O Mesozoic Cenozoic Paleozoic

M IIO III 1 2 O 2 3 4 5 O 6 Is this trait dominant or recessive Explain your answer 6 7 8 H b What gave you the essential information to decide that II 3 and II 4 were heterozygous

III 1 2 3 4 5 e a Which members of the family above are affected by Huntington Disease 7 c How many children did individuals 1 1 and 1 2 have d How many girls did II 1 and II 2 have b There are no carriers for Huntington s Disease you either have it or you don t With this in mind is Huntington s disease caused by a dominant or recessive trait 8 How are individuals III 2 and II 4 related Huntington s Disease

A family tree of sorts is called a pedigree The symbols used for a pedigree are female unaffected female affected male unaffected male affected Problem 1 I II III 1 2 3 3 Siblings are placed in birth order from left to right and are labeled with Arabic numerals Each generation is labeled with a Roman numeral Therefore the male exhibiting the trait in the pedigree below in the bottom center youtu bi identified as III 4 4 TO 5 6 7 8 Huntington s Disease of the family above are affected by Huntington s Disease

One of the following fixatives is used for enzyme fixation O a Formalin O b Picric acid O c Mercuric chloride d Acetone

2 3 2 Test CST Genes and Traits Question 17 01 23 Which type of molecule is shown in the model COOH H N C H CH 2 A Carbohydrate B mRNA C Amino acid D Polypeptide

Cross together two double heterozygous parents for plant height and flower color genotypes TtWw for both parents T tall t short W white w blue What is the probability that a randomly selected offspring will be short and have blue flowers O9 16 O 1 4 O 3 16 1 16

pH describes how acidic or basic an aqueous solution is True False

What is the unit of absorbance which can be derived from Beer Lambert s law No unit 1 gm cm 1 cm 1 mol cm 1

The best tool to measure 346 L microliters O A PTP plastic transfer pipette A 1 1000 L micropipette A 5 50 L micropipette A 20 200 L micropipette

The reliable absorption range of a spectrophotometer is O Oo 0 5 1 0 0 1 0 0 1 1 0 0 01 1 0

Microevolution can be thought of as 26 changes in the frequencies of alleles in a gene pool genes mutating in response to environmental change creating new species where none existed before reacting to changes in the environment

The concept of genetic bottlenecks includes which of the following a loss of genetic diversity in descendent populations extensive gene flow sharing of genetic material between two populations O increased ability to resist new diseases

Which of the following research questions below is more focused and as a result will lead to new conclusions or insights Who watches reality TV programs and how do the programs influence their views on life O How do reality TV programs depict conflict resolution and can the depictions teach viewers constructive conflict resolution strategies

A good research or guiding question can accomplish which of the following Select the answer highlighted in this module O Make doing the research more fun Give you an opportunity to use current sources O Result in a good grade on the assignment O Resolve an issue leading to conclusions that can be justified

You are interested in researching reality TV programs Which of the following is the best question to lead you to conclusions that can be justified O What is reality TV O Does reality TV teach children to be better people O How does reality TV influence the perception of human behavior O Is reality TV a good tool for learning about human behavior

You have to complete a research paper this semester Which of the following options is the best place to start finding a variety of library resources Google Scholar

Enzimler etkinliklerini aktivitelerini etkinen maddenin d y zeyinden ba lat r genelleme sini a a daki deneysel sonu lardan hangisi destekler A par alama ile h crelerden daha fazla enzim kart lmas B d v lm karaci erin H O yi daha h zl katalizlemesi C kaynat lm karaci er par alar n n etkin aktif olmamas D k y lm etin ayn miktar par a etten daha abuk sindirilmesi E enzimlerin h cre d nda da etkin aktif ola bilmesi

Before childbirths moved into hospitals where did they majority of them take place O Charity clinics O Midwife stations O Homes O Trick question They ALWAYS took place in hospitals

ilgili 1 H cre i i enerji reten reaksiyonlar n ba la mas i in enerji gerekir II Metabolik bir yolda yer alan enzimler birbirini izleyerek i lev g r r III Reaksiyonun ba lamas i in enzimin bulun mas her zaman yeterlidir a klamalar ndan hangileri do rudur A Yaln z I B Yaln z II CI ve II D I ve III FII ve II

Four nucleic acid samples are analyzed to determine the percentages of the nucleotides they contain Which of the following DNA sample s could be double stranded DNA Sample 1 A 22 G 28 T 22 U 0 C 28 Sample 2 A 30 G 30 T 0 U 20 C 20 Sample 3 A 18 G 32 T 0 U 18 C 32 Sample 4 A 29 G 29 T 21 U 0 C 21 CASamples 2 and 3 O Samples 3 and 4 O Sample 1 Samples 1 and 2 Samples 1 and 4

What is the method that biologists and paleontologists use to name species O Linneaen hierarchy O Microsoft Excel O English O Phenetics O Cryptography

Select the choice that describes the correct sequence of events in protein synthesis ORNA DNA protein Oprotein RNA DNA protein DNA RNA DNA RNA protein

Directions Balance the following equations Nal F2 NaF 1 2 3 4 S Pb ClO2 4 Li OH Reactions Balancing Equations WS 2 Cr N 1500 Zn SO4 Li O Ca3N2 2 H O Cr203 12 Pb SO4 2 Zn ClO2 2

14 Significant figures and scientific notation a How many significant figures are in the following i 5004 ii iii iv V 0 00984 20 000 3 000546 15849 b Write the following numbers using scientific notation i 4 230 000 ii 0 0000000543 iii 26 300 000 000 c Convert the following scientific notation into standard notation i 4 6 X 104 ii 7 86 X 10 6 iii 5 2 X 1012