Teas Science pt.2

Which of the following is the function of a totipotent cell?

Develops into any kind of cell

Which of the following is correct regarding the pH scale?

A substance with a pH 3 is 10 times more acidic than a substance with a pH of 4  

Which of the following functions does the myelin sheath perform for a nerve cell?

Insulation 

Which of the following summarizes a change that takes place as a solid turns to a liquid?

Particles become less ordered

To accurately measure the density of a series of small irregular solids made of plastic, wood, fiberglass, and glass, a student will need which of the following laboratory tools?

Graduated cylinder, water, weighing balance 

Which of the following classes of biological molecules includes enzymes?

Proteins 

Which of the following describes the result of using a catalyst in a chemical reaction?

The reaction is completed in a shorter amount of time 

A patient goes to the doctor with a cold and sore throat and asks for antibiotics. The doctor refuses to prescribe antibiotics to the patient because the illness is caused by which of the following pathogens?

Virus 

In which of the following reigons of the body are the tibia and fibula

Crural

Which of the following actions allows for repolarization of a neuron?

The opening of potassium channels, allowing potassium to leave the neuron 

Which of the following conclusions is supported by the data?

Air resistance is greater for A than for B 

Which of the following properties does soap, an emulsifier, have that make it useful for washing dirt off one’s hands with water?

Soap’s dual polar and nonpolar nature helps bond oil and water 

Which of the following is an efferent neuron that is responsible for releasing a neurotransmitter that stimulates muscle cell to contract?

Motor neuron 

Which of the following correctly orders structures from simple to complex?

Atoms, cells, tissues, organs 

Which of the following describes a genetic mutation that results in uncontrolled division of a single cell within the body?

Cancer 

Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?

Urea 

The mitochondrial inner membrane carries out the same function in cellular respiration as the _________ membrane of chloroplasts in photosynthesis. 

Which of the following correctly completes the sentence above?

thylakoid 

The covalent bonds between the monomers of an enzyme macromolecule are 

peptide bonds 

Which of the following layers of skin lack blood vessels?

Epidermis 

Experiments cannot validate hypotheses, only falsify them. 

The statement above can be restated in which of the following ways?

A hypothesis that has not been falsified remains provisional 

Which of the following structures is present in both prokaryotic and eukaryotic cells?

Cell membrane 

If a portion of a strand of DNA bases reads 5 AGCTAGCGT 3’, what would the sequence of bases on the complementary strand read?

3’ TCGATCGCA 5’

How many times stronger is the hydrogen-ion concentration of a pH 4 solution as compared with a pH 9 solution?

100,000

An individual suffers severe blunt trauma to the thoracic cavity. Which of the following organs are at greatest risk from this injury?

Heart and lungs 

Which of the following growth curves shows a population that is at its carrying capacity?

B

A researcher wants to gather data on the average wing strength of all birds found in the American Northwest. The researcher only has one small net, so all large birds were excluded from the study. The researcher’s results were different than expected, but he believes his data include enough birds to estimate the strength of all birds. 

For which of the following reasons should this data be rejected?

Data are biased by the methodology 

Which of the following terms describes the relaxation of the chambers of the heart during the cardiac cycle?

Diastole 

Which of the following structures is an exocrine gland?

Parotid gland

A researcher writes a grant proposal to repeat an experiment that was recently published by another researcher. Which of the following statements best supports the grant proposal?

Repeating published work with changed variables will extend the previous results 

Which of the following is the process in which an ovarian follicle matures and releases a reproductive egg?

Ovulation 

Which of the following organs filters excess solutes from the blood?

Kidney 

Which of the following occurs in an oxidation reaction?

Removal of electrons

Which of the following tools can be used to measure the turbidity of a liquid by measuring the transmission of light through the sample?

Spectrophotometer 

Genetic information describing the characteristics of an organism is found in which of the following?

Nuclei 

For which of the following reasons does chloride ion have a negative charge?

It gained an electron 

Which of the following is a function of a bone?

Storage of minerals

A study found two process, Process A and Process B, to be correlated. Which of the following is true for these processes?

The study does not indicate a causal relationship between the processes 

Which of the following is a component of the integumentary system?

Apocrine gland

Hikers who found a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicated he was shot with an arrow more than 5,300 years ago. Which of the following would be the best reason for prolonged preservation of the body?

The body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found

Emphysema caused by damage to alveoli from toxins and pollutants is likely to result in the body having difficulty performing which of the following actions?

Exchanging oxygen and carbon dioxide 

The triple point of a substance is the temperature and pressure at which the substance exists as which of the following?

Simultaneously in solid, liquid, and gas phases 

Which of the following substances is responsible for donating H + ions to act as a buffer when blood pH rises?

Carbonic acid 

Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders. In which of the following ways should the hypothesis be modified, given the new findings?

Worm infestation reduces the severity of certain autoimmune disorders 

If a mother’s _______ cell contains mutated DNA, this mutation can be passed to her offspring.

Which of the following options correctly completes the sentence above?

germ 

Lipids absorbed in the small intestine will first enter which of the following structures?

Lacteal vessels 

Which of the following processes causes most of the carbon dioxide from the blood to move into the alveoli?

Diffusion down a concentration gradient 

Which of the following immune system molecules creates holes in the cell membranes of their target cells in order to destroy the cell?

Perforins 

An organism with an unknown genotype is crossed with another organism that shows the recessive trait (aa). The Punnett square above shows the results. Which of the following is the unknown genotype?

Aa

Which of the following is a protein present in blood plasma?

Fibrinogens 

Both digestion and absorption happen in which of the following parts of the digestive system?

Small intestine