Biology Questions

The overall movement of liquid from areas of high potential energy to areas of lov potential energy is termed O bulk flow diffusion osmosis

O Exocytosis Endocytosis Facilitated diffusion Paracrine signalling agents Question 10 1 pts Fill in the proper term to the sentence using Down or Against Active transport is different from other types of transport such as osmosis because the movement of molecules in the form of ATP

diffusion osmosis bulk flow turgor pressure Question 6 1 pts Plasma membranes in both plants and animals are lipd bilayer structures which conform to the fluid mosaic model of integrated proteins Are there any significant differences between plant and animal plasma membranes No Yes they contain different types of proteins exclusive to their phyla i e there are plant proteins and animal proteins plants don t have proteins found in animals and vice verse Yes the plasma membranes of plants are composed of phospholipid and sterol compounds such as stigmasterol animals are composed of phospholipid and cholesterol The sterol compounds regulate the fluidity of the membrane more makes the membrane more rigid

ed proteins Are there any significant differences between plant and animal plasma membranes No Yes they contain different types of proteins exclusive to their phyla i e there are plant proteins and animal proteins plants don t have proteins found in animals and vice verse Yes the plasma membranes of plants are composed of phospholipid and sterol compounds such as stigmasterol animals are composed of phospholipid and cholesterol The sterol compounds regulate the fluidity of the membrane more makes the membrane more rigid Yes plants do not have transmembrane proteins while animals have both integral and peripheral proteins not found in plants Question 7 1 pts Glycoproteins are short chain oligosaccarides attached to peripheral proteins of plasma membranes they are important in the recognition of molecules such as hormones and serve as markers for the immune system True

membranes Which is not a type of gated channel Mechanically gated channel MGC responds to physical impact ex touch O Chemically gated channel CGC responds to chemical messengers ex neurotransmitters O Voltage gated channels VGC responds to changes in electrical potentials ex action potentials Water gated channel WGC responds to changes in molar concentrations ex aquaporins More than one of these is not a type of gated channel Question 9 Phagocytosis pinocytosis and receptor mediated using clatharin are three types of Exocytosis Endocytosis Facilitated diffusion 1 pts

0 08cm 14 85mm 0 027m 62 m Give the result in m do not round up your answer write exact resu Your Answer Calculate

True False Question 5 The net flow of water i e a solvent across a semipermeable membrane from areas of high low potential energy is termed diffusion osmosis 1 F bulk flow

A specimen observed under the 20x objective is using 75 of the filed of view of the microscope Will I be able to see the whole specimen if I observe it under the 40x objective True False

net transfer of molecules is zero True False Question 4 Diffusion is the principle way substances move within cells True 1 pts

potential energy is termed bulk flow diffusion osmosis turgor pressure Question 3 1 pts Diffusion of molecules stops when they reach a dynamic steady state equilibrium That is the net transfer of molecules is zero True

Plasma membranes separate the cells internal components from the external environment Identify the organelle that is not membrane bound Endoplasmic reticulum Nuclear envelope Mitochondria O Chloroplast Ribosome Tonoplast Peroxisome

Electron microscopy is particularly adapted to the observation of bacteria because They move very fast and it is not easy to take a picture Thir organelles are small and very close to each other They possess no organelles Electrons can cross their thick cell wall Most bacterial cells are very small and hard to see with a light microscope

The depth of field increases with the magnification True False

falfio anubic Human Hom Sapiens Domestic cat Felis Catus Striped hyena dag canis Lupus Mans Mas Musculus Brown rat Rattus norvegicus Gerbil Mexiones unguiculatus

Anabaena Amoeba Paramecium Euglena Carrot Onion and Potato Cell structures Amyloplast Chromoplast Nucleus Cell Wall Reagents and Stains Methylene blue Lugol s reagent llulose ert glad hot Har

POND WATER IF AVAILABLE TOIT Jugos Table 1 Pond Water Diversity Results attach an additional sheet if necessary Total Number Observed 1 2 3 4 5 6 7 8 9 Species Observed Brief description or name if known 20 ABAI 009 1018 Other comments MOIT

1 PREPARATION OF A WET MOUNT Sketch cells below a Estimation of the size of an individual onion cell PART Length mm Width b Estimation of the size of an individual carrot cell Length mm Width C Estimation of the size of an individual potato cell Length mm Width d Estimation of the size of an individual Elodea cell Length mm Width mm mm mm mm

The calculated X value way of freedom chart as seen on the right Unless in otherwise compare your value to the p 0 05 row 1 A science teacher is bothered because of all the noise outside of his classroom each day He decides to see where th noise is coming from and finds that several groups of freshman students use the water fountain located by the door to his classroom There are three other water stations on campus and after studying the frequency at which students visi each water fountain he becomes convinced that students prefer the water fountain by his room rather than the other three fountains The teacher assigns a student to be at each water fountain and count the total number of students getting water from each one The data is as follows water fountain 1 by the teachers door 45 students water fountain 2 36 students water fountain 3 25 students and water fountain 4 30 students Is the teacher correct the students prefer to use the water fountain by his door Toumain 1 45 fountain 2 36 fountain 15 25 fountain 14 30 Step 1 state the null hypothesis Step 2 determine your expected values Step 3 complete the Chi square chart 113 Observed 05 Expected E TEL O E O E O E E Step 4 calculate your degrees of freedom 366 W20 30live 30 T

Which mechanisms of biogeography explains the distribution in the figure Plethodon amplus Plethodon cheooh Plethodon jordanl Plethodon meridianus Plethodon metcalf Plethodon montanus Plethodon shermani Georgia Tennessee Continental Drift Vicariance Disjunct Dispersal Climatic Cycles Temporary Land Bridges Virginia North Carolina South Carolina

1 AOTD What is the primary purpose of the horned lizards shooting blood from their eyes OC To scare or blind predators To feed baby lizards to reduce intra ocular blood pressure To camouflage the lizard

Adjacent water molecules interact through the sharing of electrons between the hydrogen of one water molecule and the oxygen of another water molecule electrical attraction between the hydrogen of one water molecule and the oxygen of another water molecule sharing of electrons between adjacent oxygen molecules trical attraction between the hydrogen atoms of adjacent water molecules

Based on your reading about the patterns of survivorship which of following curves indicate relatively constant survivorship over all ages Percentage of Individuals Surviving Listen 100 0 1 Curve III Curve I Curve II 11 Time

1 Calculate the volume of vector and PCR product that you need for each of the reactions 2 Setup a reaction mixture of 20 L to perform the four ligation reactions Tube 1 Digested pUC19 or digested pBR322 without insert Tube 2 Digested pUC19 or digested pBR322 with insert Tube 1 I Reagents Digested pUC19 or digested pBR322 10X ligase buffer Digested GFP PCR amplicon insert Sterile water Ligase Tube 2 1 L 1 L Final Volume 20 L 20 L Note the values of the table will be calculated in class Question What role does each of the ligation reactions play ex control what type to control what sample 3 3 Transformation of competent E coli

For example all breeds of domestic dogs belong to one species Dogs belong to a different species than coyotes but these two species are similar enough to be included in the same genus Wolves dogs and coyotes share enough characteristics to be included in one family Traditionally two organisms were considered to belong to the same species if members of the opposite could mate and produce viable fertile offspring The classification of bacteria is not straightforward because 1 bacteria do not reproduce sexually so they do not mate 2 bacteria may look very much alike when viewed through the microscope but may not be related closely and 3 bacteria can acquire DNA horizontally through conjugation for example from various microbes Phenotypic bacterial classification schemes utilize the Gram stain bacterial morphology staining properties growth requirements and biochemical tests The environmental reservoir of the organism vectors and means of transmission of the pathogen are of importance to clinicians The ability of bacteria to grow in the absence or presence of oxygen is an important characteristic in classifying bacteria for example Bacteroides found in the large intestine are strict anaerobes The types of biochemical reactions each organism can perform serve as a thumbprint for identification For example the catalase test identifies microbes that produce the enzyme catalase such as Streptococcus species Data Wor FGK Figure Catalase G C moles 43 Gelatin hydrolyzed Gram stain A H S produced Indole produced Lactose fermented Metabolism Methyl red Sterols required Voges Proskauer Glucose fermented Acid gas Methyl red Sterols required Voges Proskauer G 53 Figure Catalase G C moles Gelatin hydrolyzed Gram stain H S produced Indole produced Lactose fermented Metabolism 50 Glucose fermented Acid gas H FEH C Acid Acid only only 2 8 1EFE 45 58 Anaerobe Acrobe Anaerobe Facultative Facultative Facultative anaerobe anaerobe anaerobe I 60 Q D Acid only 40 Acid only Facultative anacrobe Acrobe Acrobe Acrobe J 1111 B 66 E 30 Acid only K S JE Facultative anaerobe Acid gas H F 53 ODJ Acid gas OE I

1 2

caption that the image is borrowed and from whom There is a file below that contains a description of the DNA ladder There should never be any lines that extend beyond the boundaries of the image all lines should be around the image of the gel There should never be any arrows on or around your gel image Crop the gel image to include only the important wells DNA ladder the sample and the control only yours or those that you borrowed Primer design You must be able to digest the PCR product with the two different restriction enzymes that produce sticky ends on either side of the gene Make sure to indicate the choice of enzyme and where the palindrome sequence is located Your primers should be between 15 and 25 base pairs and should only appear once in the e ther team or your partner be sure to indicate in the sequence The Tm of both primers should be shown Please note that restriction enzyme sites added onto the primer do not contribute to their Tm Both primers should be shown aligned against the amplified pBR322 sequence and all elements should be labelled refer to the example provided General Guidelines Layout of the page is important when presenting any figure The image or figure should take about

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

ng is NOT a component of the endom endoplasmic reticulum Golgi apparatus lysosomes plasma membrane Question 36 1 point 4 Listen The central vacuole of plant cells do all of the following EXCEPT Contains digestive enzymes Stores organic nutrients Absorbs water

Seep Lip in I difference between eukaryotic and prokaryotic cells is that eukaryotic cells prokaryotic cells have DNA which is lacking in have membrane enclosed structures called organelles which are lacking in have a plasma membrane which is lacking in have a nucleoid region which is lacking in

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

What are genes composed of insulin 00 organelles Otissues 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

DNA nucleotides include Ouracil guanine adenine and cytosine thymine uracil adenine and cytosine thymine guanine adenine and cytosine thymine guanine adenine and uracil

Saturated fats are saturated with O carbon nitrogen hydrogen oxygen

Which of the following is NOT one of the four life supporting properties of water Water has cohesive properties Water can moderate temperatures Frozen water floats Water is a common solute of life

Enzymes are amino acids monosaccharides lipids Oproteins

A polypeptide is a long chain of amino acids bonded together by Ohydration reactions phosphodiester bonds peptide bonds hydrogen bonds

with trapped debris out of the lungs microfilaments intermediate filaments flagella hairlike structures called O cilia Question 18 1 point 44 Listen All of the following are true of ionic bonds EXCEPT Formed between oppositely charged ions Form from the transfer of an electron Results in ionic compounds are held together by ionic bonds help s

Which sequence shows the steps of the process of science in an order in which they might occur experiment conclusion exploration application question observation experiment analysis prediction exploration hypothesis prediction experiment exploration question opinion conclusion hypothesis

is a steroid Omega 3 Sucrose Amino acid Testosterone

Listen Which function is NOT a property of life Populations of organisms rarely change over time Living things exhibit complex but ordered organization Organisms take in energy and use it to perform all of life s activities Organisms reproduce their own kind

13 Internal skull label bony elements only 15 Lateral skull label bony elements only

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

7 Mandible lateral view 8 Sphenoid superior view 10 Frontal anterior view 11 Parietal lateral view

3 Temporal lateral view 6 Sacrum posterior view

56 1 Tissue organ 2 3 Tissue organ 4 5 6 Tissue organ 7 8 9 10 Tissue organ 11 12 13

14 Inferior skull label bony elements and only foramina canals 16 Anterior skull label bony elements only