Biomolecules Questions and Answers

ma is a kind of kinetic energy O Thermal energy O Potential energy O Gravitational energy OFood energy og My Ac 000

Question 5 1 point The phenotypic changes shown in the figure above represent a punctuated equilibrium b speciation based on sexual selection O c horizontal gene transfer d gradualism

Points 3 Question 20 What is the de Broglie wavelength of a 0 25 kg baseball when it leaves a bat with a speed of 25 m s O 1 06x10 34 m O 1 06x10 36 m O 6 25 m 625 m

D GradeResults A AF 1 Bedroom Apartm AT 1 br 1 bath House 1 Row Diamond W My Activities Tell me what you want to do In the following graph a ball is falling from position A At which position does the ball have the least potential energy OD O F 101 Dalmatians City JU 10k Yellow Gold Me AJ 1124 B

Which of the following is NOT a property of solids O Solids have a definite shape Solids have a definite mass Solids expand to occupy the volume of the container they are present in O Solids have the same density across their shape

Question 6 Points 1 The traditional way of getting a roller coaster up the first hill is by using a O pulley O crane Ofulcrum Ochain lift

E halogens Question 7 8 points Saved 1 Listen 11 make up the majority of co A Building block elements Pl Mooronutriente

Question 30 Points 1 What happens when hydrogen and oxygen react Hydrochloric acid is produced O Water is produced O Sulfuric acid is produced Tell me what you want to do a No product is formed

The size of a tire is a whereas inflating a tire is a O chemical property chemical change respectively O chemical change chemical property respectively Ophysical change physical property respectively Ophysical property physical change respectively

Question 29 Points 2 Select the skeleton equation for the reaction Sodium hydroxide Cobalt II chloride 2NaOH CuCh 2NaCl Co OH O2NaOH Coch 2NaCl Cu OH 2NaOH CoCl 2NaCl Ca OH O NaOH CoCl NaCl Co OH Sodium chloride Cobalt 1 hydroxide

Identify the color change that indicates the negative result for chemical reaction with iodine Light brown color O Light purple color O Pink color Green color

Question 23 Points 2 Which of the following is true for 1 mol Cu and 1 mol Au O They have equal mass O They have equal molar mass They have the same atomic mass They contain the same number of atoms

Question 11 The freezing point of blood is 2 C What is the freezing point of blood in Kelvin scale O 275 K O273 K 274 K Points 3 271 K

Question 4 Points 1 molecules can vibrate and rotate when stored within a container OBoth solid and liquid Liquid ONeither solid and liquid

Question 6 Which of the following techniques can be applied to separate the components of a mixture Points 3 O Filtration and distillation O Filtration and fermentation O Fermentation and oxidation O Fermentation and distillation

If we increase the temperature of an object O its particles do not move at all O the movement of its particles increases O the movement of its particles decreases O the movement of its particles remains the same

The graphical representation of the motion of a car is given below 100 m What is the displacement of the car 100 m 30 m 130 m 30 m im

Points 2 Question 8 I am a law stated by Sir Isaac Newton I deal with the basic property of matter Sometimes I am also known as law of inertia Who am I Inertia 888 My Activities Newton s first law of motion Newton s law of gravitation Momentum Tell me what you want to do Q

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Which is NOT a function of lipids in birds and mammals Lipids provide a protective layer over feathers and furs as a waterproofing agent Lipids transport glucose across the cell membrane Lipids are a vital part of cell membranes Lipids store energy in the form of fats for long term use Lipids are part of the basic structure of steroid hormones

point depression When a solute and solvent are mixed together the specific heat of the solution is depressed When a solute is added to a solvent the freezing point of the resulting solution is lowered When a solute is added to a solvent the freezing point of the resulting solution is increased The solubility of a solute changes as the solvent is frozen

nswer the following questions Pressure 73 atm 5 11 atm CO 3 CO

Which of the following are the branches of the national government Select all the correct answer criminal monarchy legislative executive judicial oligarchy

What is used to identify the reactants and products in a skeleton equation O Chemical formulas O Co efficient O Subscript O Superscript

The amount of carbon dioxide formed when 24 g of carbon is burnt in excess supply of oxygen is O 11 g 0 22 g O 44 g O 88 g

Which of the following changes is NOT a reversible change O Melting of water O Burning of coal O Sublimation of lodine ondensation of water vapor

Which among the following factors represent the advantages of nuclear power I Low operating cost II Long gestation period III High capacity factor IV High capital investment I and III O II and IV O I II and IV O II III and IV

Radioactive wastes are buried under O rock O sand O water O river

Which of the following is used in nuclear reactors O K 40 OP 32 O C 14 O U 235

you learned in the lab about Giardia fill in the following sentences Place the terms in the appropriate blanks to complete the sentences humans intestines beavers lowest crabs salt water fresh water blood highest Giardia are parasites of Giardia live in the and of their hosts not in the host s When a beaver defecates in its habitat Giardia are released into The when they come into contact with untreated water or food Reset density of Giardia occurs in fresh water and humans can be infected with Giardia

What is microscopy Place True or False at the end of each statement True False Reset Microscopy uses tools such as stereo or dissecting scopes compound light microscopes and scanning and transmission electron microscopes SEMs and TEMS Microscopy is only used in biology All microscopy relies on light to create a micrograph Microscopy allows you to see features that you cannot see or cannot see in detail with the naked eve

and food irradiation process are used in O Cesium 60 calcium 45 O Cobalt 60 calcium 45 O Cobalt 60 cesium 137 Sodium 24 calcium 45

Female peahens choose a male peacock for mating because of the male s long colorful tail feathers and their courtship display This is which type of selection Select all that apply 1 Balancing 2 Directional 3 Intrasexual 4 Diversifying

Question 2 Points 2 According to law of conservation mass which of the following equations is correct O Fe s Cl g FeCl s O Fe s Cl g Fe Cl3 s O2Fe s 3 Cl g 2FeCl3 s Fe s Cl g FeCl3 s

Points 1 The chemical formula for hydrochloric acid is Question 1 OHC4 OHCl3 OHCl HCI

Question 4 Points 1 The substances that enter into a chemical reaction are called O reactants O products Ochemicals O elements

Question 5 Points 1 In aN bH equation balanced O 1 3 2 O 1 2 3 3 2 1 23 1 CNH3 which of the following corresponds to a b and c respectively to make the

Question 9 Identify the symbol used to separate two reactants in a chemical reaction O O

Which among the following is a balanced chemical equation O Ca OH 2 2HCl CaCl 2H O Ca OH 2 2HCl CaCl 2H O O Ca OH HCI CaCl 2H O O Ca OH HCl CaCl H O

The function of BMP4 is to BMP4 O 1 inhibit growth amplify expression of O2 cause apoptosis act as a catalyst for 3 induce mitosis inhibit the function of O 4 cause apoptosis inhibit the function of 5 induce mitosis amplify expression of while the function of gremlin is to

During spring time in Maine male moose often enter a cow pasture and begin calling to the female cows The moose may even try to mount the female but the male genitalia do not fit properly inside the female genitalia This is an example of 1 mechanical isolation O2 gametic isolation 3 behavioral isolation 4 temporal isolation 5 habitat isolation

A person who believes that people should not be governed by a state government or religious moral laws is referred to as An anarchist A monotheist A communist

Term 1 Superior 2 Inferior 3 Anterior 4 Posterior 5 Lateral 6 Medial 7 Proximal 8 Distal 9 Supine 10 Prone terms with their meanings Place the correct letter in the letter column Letter Definition 23 The kidneys are 24 The knee is Ca closer to the top of the limb f lying face downwards towards the head or above back or at the back of closer toward the bottom or end of a limb towards the feet or below front or in front of lying face upwards toward the side of the body or away from the midline of the body toward the midline of the body D J A E h Use the directional term to complete the following statements 11 The head is 12 The thumb is 13 The lungs are 14 The nasal cavity is 15 The heart is 16 The heart is 17 The stomach is 18 The diaphragm is inferior 19 The wrist is 20 The knee is Superior 21 The esophagus is Anterior 22 The heart is to the tail to the elbow to the heart to the mouth to the elbow to the stomach to the heart to the lungs to the shoulder to the ankle to the spinal cord to the diaphragm and to the heart to the hip but to the lungs to the foot

Which of the following proteins in a plant cell transports substances or conducts signals across the plasma membrane Select all that apply proton pump calcium channel ATP synthase ribosome aquaporin