Biology Questions

Draw the colonies that appear on each agar plate Colony description Form Elevation Pigmentation Size Spread Plate Technique Draw the distribution of growth on the slant surface Coccus Flut 0 5 micrometer Size 0 5 0 8micrometer Number of Colonies 97 Type of growth Pigmentation Name of organism PART B Isolation of Pure Cultures from a Spread Plate or Streak Plate Preparation Streak Plate Technique gggg CFU CFU X DE ML ML Plated 97X 105 106 107 X 0 1 Volume plated G 0 ervation Fra 30

The following question refers to the generalized life cycle for land plants shown in the figure Each number within a circle or square represents a specific plant or plant part and each number over an arrow represents meiosis mitosis or fertilization 2n C binary fission D mitosis 0000 In the figure the process labeled 6 involves OA fertilization OB meiosis e

Part A Fill in the blanks of the following paragraph Match the numbers in the left column to the appropriate blanks in the sentence on the right Not all numbers will be used Submit 3 Provide Feedback 6 9 12 18 36 Request Answer Reset Help To synthesize one glucose molecule the Calvin cycle uses molecules of molecules CO of ATP and molecules of NADPH

Chlorophyll can be found in D O O B Submit B and E A and C B and D B and C A and B Previous Answers Request Answer X Incorrect Try Again One attempt remaining This choice is partially correct

Part A Light H O Light Reactions Qubmit NADP ADR NADPH CO Calvin Cycle Select the correct statement about the Calvin cycle Request Answer CH O sugar The Calvin cycle has three phases carbon fixation reduction and regeneration of RuBP The basic function of the Calvin cycle is the conversion of solar energy to chemical energy The Calvin cycle takes place primarily in the dark

Part Redox reactions of photosynthesis In photosynthesis a redox compound that is produced in the light reactions is required to drive other redox reactions in the Calvin cycle as shown in this figure along with other components of photosynthesis H O co chloroplast Light reactions NADP NADPH ATP Drag the terms to the appropriate blanks to complete the following sentences summarizing the redox reactions of photosynthesis Terms may be used once more than once or not at all View Available Hint s ADP H O CO 0 NADP ADP 6 CH ATP two NADPH Calvin cycle G3P sugar 1 In the light reactions light energy is used to oxidize to Reset Help 2 The electrons derived from this oxidation reaction in the light reactions are used to reduce 3 The Calvin cycle oxidizes the light reactions product to to 4 The electrons derived from this oxidation reaction in the Calvin cycle are used to

A D splits water into 1 2 0 H and e D B C Em B C E

Part D Chloroplast structure and function In eukaryotes all the reactions of photosynthesis occur in various membranes and compartments of the chloroplast Identify the membranes or compartments of the chloroplast by dragging the blue labels to the blue targets Then identify where the light reactions and Calvin cycle occur by dragging the pink labels to the pink targets View Available Hint s envelope membranes thylakoid membrane thylakoid space cytosol stroma location of light reactions location of Calvin cycle Group 1 Group 2 Group 1 Group 1 Cress Group 2 Group 1 Group 1 Reset Help

Part D Energized electrons from A D B D C E E C are used to reduce NADP

m the following choices identify those that are the inputs and outputs of the Calvin cycle ng each item to the appropriate bin If the item is not an input to or an output from the Calvin cycle drag it to the not input or output bin Wiew Available Hint s input CO G3P light glucose output NADP NADPH ATP not input or output ADP Reset Help

What is the adaptation of animals BATERI 1425621 MERRE DE SAMPLE SIEGES

From the following choices identify those that are the inputs and outputs of the light reactions Recall that inputs to chemical reactions are modified over the course of the reaction as they are converted into products In other words required for a reaction to occur and it does not remain in its original form when the reaction is complete it is an input Drag each item to the appropriate bin If the item is not an input to or an output from the light reactions drag it to the not input or output bin View Available Hint s water input CO G3P output NADPH glucose ADP 8 not input or output light Reset Help NADP

5 Select all the correct locations Identify the nations on the map that made up the Triple Entente Kry Neatral Powers Central Powers Allied Power NWTH FARENTS BEA

Which organelle uses carbon dioxide in its energy production thylkoids the cell membrane the mitochondrium the chloroplast

Atom 0 1 nm Protein Lipids 1 nm 10 nm Flu virus HD 100 nm Mitochondria Electron microscope 1 m 1331 Light microscope Electron microscope 10 m Human egg Relative sizes on a logarithmic scale 100 m Naked eye Electron microscope Frog egg 1 1 mm Chicken egg 10 mm Light microscope Ostrich egg 100 mm Adult female 1m

For all vertebrates that fly we should expect which of the following skeletal modifications a reduction of loss of hindlimbs loss of skeletal elements elongation of all parts of the forelimbs a reduction in the width and or weight of the major bones

In which skeleton is the femur the thickest of the major long bones bat cat human pigeon

Given that all vertebrate animals are thought to share a single common ancestor we can expect their endoskeletons to show similarities in anatomy but not necessarily in function few similarities in anatomy or function a gradual reduction number of bones in the skeletons great similarity in function but not necessarily in anatomy

What is the most obvious difference in the forelimb of the human versus the bat cat or pigeon the number of phalanges an obvious wrist joint an opposable thumb the presence of the ulna and radius bones

Listen In which skeleton is the femur proportionately longer than the tibia and fibula bat pigeon human cat

What is it called when one event occurs and another happens as a direct result OA Coincidence B Correlation OC Colonization D Causation

Cells are limited in size to 200 and 500 micrometers in diameter characteristic of prokaryotic and eukaryotic organisms characteristic of eukaryotic but not prokaryotic organisms only found in pairs because single cells cannot exist independentl

Where are the proteins of the electron transport chain located mitochondrial outer membrane mitochondrial matrix mitochondrial intermembrane space mitochondrial inner membrane

The force driving simple diffusion is transport is while the energy source for active transmembrane pumps an electrochemical gradient a concentration gradient ADP phosphorylated carrier proteins ATP O a concentration gradient ATP hydrolysis

Which of the following molecules is most similar in structure to ATP a DNA nucleotide a pentose sugar an amino acid with three phosphate groups attached an RNA nucleotide

An organism with a cell wall would most likely be unable to take in materials through active transport phagocytosis facilitated diffusion osmosis

4 Listen Why is the AG of ATP hydrolysis in the cell about twice as great as the AG of ATP hydrolysis in a test tube under standard conditions Reactant and product concentrations in the test tube are different from those in the cell ATP hydrolysis in cells is catalyzed by enzymes whereas the reaction in a test tube occurs spontaneously A cell is an open system whereas a test tube is a closed system ATP hydrolysis in a test tube releases more heat than ATP hydrolysis associated with cellular metabolism

The best experimental design alters only one condition between the controls and the experimental condition includes a large sample size for each condition includes a control includes a large sample size and a control and alters only one condition between the controls and the experimental condition

When a cell is in equilibrium with its environment which of the following processes occurs for substances that can diffuse through the plasma membrane All movement of molecules across the plasma membrane occurs by active transport There is random movement of substances into and out of the cell There is no movement of substances into or out of the cell There is directed movement of substances into and out of the cell

Which of the following statements correctly describes osmosis In osmosis solutes move across a membrane from areas of lower water concentration to areas of higher water concentration In osmosis water moves across a membrane from areas of lower solute concentration to areas of higher solute concentration O Osmosis only takes place in red blood cells Osmosis is an energy demanding or active process

A characteristic 9 2 arrangement of microtubules consisting of nine doublets of microtubules surrounding a pair of single microtubules is associated with eukaryotic flagella motile cilia and nonmotile cilia bacterial flagella eukaryotic flagella and motile cilia centrioles and basal bodies

The membranes of winter wheat are able to remain fluid when it is extremely cold by decreasing the percentage of cholesterol molecules in the membrane decreasing the number of hydrophobic proteins in the membrane increasing the proportion of unsaturated phospholipids in the membrane increasing the proportion of glycolipids in the membrane

A controlled experiment includes at least two groups one differing from the other by two or more variables is repeated many times to ensure that the results are accurate includes one group for which the scientist controls all variables includes at least two groups one of which does not receive the experimental treatment

As letters are to English language nucleotides ODNA double helix proteins A and B is are to genetic information

The process by which the information in a gene directs the synthesis of a protein is called replication cloning post translation modification gene expression

In comparison to eukaryotes prokaryotes Oare more structurally complex are smaller O are larger do not have membranes

A localized group of organisms that belong to the same species is called a Opopulation community ecosystem family

Read the excerpt from The Most Dangerous Game by Richard Connell So intent was the Cossack on his stalking that he was upon the thing Rainsford had made before he saw it His foot touched the protruding bough that was the trigger Even as he touched it the general sensed his danger and leaped back with the agility of an ape But he was not quite quick enough the dead tree delicately adjusted to rest on the cut living one crashed down and struck the general a glancing blow on the shoulder as it fell but for his alertness he must have been smashed beneath it He staggered but he did not fall nor did he drop his revolver How is this scene different in the film adaptation of Th Most Dangerous Game Rainsford hides instead of trying to wound General Zaroff Rainsford s female companion sets the trap for General Zaroff O General Zaroff injures Rainsford with an arrow O General Zaroff avoids the trap Rainsford sets

Listen What is the best function description of the structure labeled as 7 3 1 21 6 WTE 7 5 4 8 Anchoring points for tendons and ligaments O Contains blood vessels and nerves in to and out of the central canal Provide strength and resistance in multiple directions along lines of stress Bone maintaining cell in a hole Functional unit of compact bone Canals that connect lacunae to each other and the central canal O Contains blood vessels and nerves along the length of an osteon A single weight bearing ring of collagen and inorganic material

Listen What structure is labeled as 3 2 4 1 Articular cartilage O Compact bone Trabeculae Spongy bone 3

What is the best definition description of short bones As long as they are wide O O Thin flattened and a bit curved O Longer than they are wide Have a complicated shape

What is the best function description of hyaline cartilage Is a solid structure that has great strength and resistance in one direction Resists mechanical forces such as compression without sustaining damage allows some movement O Allows for significant stretch and recoil back to its original shape Provide strength and resistance in multiple directions along lines of stress Resists mechanical forces such as compression without sustaining damage allows little to no movement

21 Read the story below Select the best answer for the following item Our use of enormous quantities of natural resources has caused much anxiety about the future As our population grows our resources are being exhausted at an increasing rate When our nation was young and had a small population we thought our resources would last forever With a small population labor was scarce and people did not bother to prevent waste By 1900 our vast forests were three fourths gone Today our coastal fishing grounds are producing less than before and much farmland has been lost to erosion Most of our large cities are concerned about the problems of water supply and many of our smaller cities are looking for additional water Fortunately interested citizens scientists and government officials have become increasingly aware of our diminishing resources and are studying ways of saving them Proper conservation however does more than protect resources for the future it also increases their present production The wise conservationist wants to use resources to provide for future generations as well as for our own Wise use means no waste Conservationists urge that we manage our living resources to balance their consumption with the growth of a new supply Whether it is trees grass or fish no more should be used than can be replaced by normal growth Minerals a funded resource cannot replace themselves Conservationists therefore advocate cautious use of them Scrap metal for example should be melted down and used over again Whenever possible the more plentiful minerals should be used in place of the scarce ones With efficient use of our resources we can meet our present needs and also provide for the future 6 37 38 ac D According to this article conservationists include city councils O concerned citizens

Listen What structure is labeled as 8 2 3 4 5 1 Comm Langerhans cell Dendritic cells Stratum corneum Melanocyte Stratum spinosum Merkel cell Tactile epithelial cells O Stratum granulosum Keratinocyte Stratum basale 6 7 8 9

The third paragraph chiefly describes the increase in natural resources O location of vast forests O loss of natural resources O water supply of cities

What is the function description of the structure labeled as 192 5 12 2 3 4 19 6 T 18 17 8 16 9 10 11 12 13 14 15 O Sensory receptor for detecting when a hair is bent O Increase the surface area for diffusion and help limit movement between layers Root sheath extending from the epidermal surface into the dermis that grows the hair from the hair matrix Softens skin prevents hair becoming brittle slows water loss from skin and is bactericidal O Carries blood away from the heart Synthesize and secrete a hypotonic slightly acidic solution that is 99 water OExit site for a hypotonic slightly acidic solution that is 99 water O Composed of a medulla cortex and cuticle internal to the skin O Composed of a medulla cortex and cuticle external to the skin O Carries blood towards the heart 32 of 50

What structure is labeled as 8 5 12 1 2 3 4 19 6 4 18 17 O Free nerve ending O Papillary layer of dermis O Sensory nerve fiber O Dermal papillae Epidermis Arrector pili muscle O Reticular layer of dermis Meissners Tactile corpuscle Pacinian Lamellar corpuscle Hypodermis 8 16 9 10 11 12 13 14 15

5 tissue found located 3 OEpiglottis auricle of external ear O Lines the ureters urinary bladder O Covers the ends of long bones forms costal cartilage Tendons most ligaments Trachea upper respiratory tract 4 Center of epiphyses of long bones marrow cavity of diaphysis of long bones diploe of flat bones O Under skin around kidneys O Outside region of osseous tissue Under epithelia 1 of the digestive tract gallbladder 2

Where is this type of tissue found located 6 8 9 3 2 O Kidney tubules ducts and secretory portions of small glands Trachea upper respiratory tract O Largest ducts of sweat glands mammary glands Under epithelia O Moist linings of the esophagus mouth and vagina Kidney glomeruli air sacs of the lungs OSmall amounts in male urethra Lines the ureters urinary bladder 5 O Most of the digestive tract gallbladder of feet 4 1

2 1 Air sacs O Squamous epithelial cells O Plasma membrane Nucleus 3