Teas 7 Science Mometrix

c. shivering when the body temperature falls

d. secreting insulin to decrease blood sugar concentration

e. increasing heart rate when blood pressure is low.

Which of the following are examples homeostatic mechanisms?

a. Consuming excess calories to gain weight

b. lighting weights to increase muscle mass

c. shivering when the body temperature falls

d. secreting insulin to decrease blood sugar concentration

e. increasing heart rate when blood pressure is low.

d. tendency of the body to maintain a stable environment.

Homeostasis is defined as:

a. ability of human beings to keep body weight within normal limits

b. maintenance of a constant temperature inside a room

c. ingestion of enough food to keep hunger pains from developing

d. tendency of the body to maintain a stable environment.

b. distal

Where is the gastrocnemius vein in relation to the femoral vein?

a. lateral

b. distal

c. superior

d. ventral

d. unsaturated

What is NOT a type of protein?

a. fibrous

b. membrane

c. globular

d. unsaturated

b. They are responsible for storing the fat that is found in the adipose tissue

Which of the following is true regarding adipocytes?

a. They are involved in the secretion of glucose.

b. They are responsible for storing the fat that is found in the adipose tissue

d. They are the foundation element of muscles.

a. make proteins

What is the role of ribosomes?

a. make proteins

b. waste removal

c. transport

d. storage

d. including baking soda in a recipe to make it less sour.

Which of the following is an example of a chemical change?

a. releasing compressed gas to make a bottle-rocket launch

b. adding water to clay to make slip

c. crystalizing honey to make candy

d. including baking soda in a recipe to make it less sour.

c. valence electrons

Which of the following is exchanged between two or more atoms that undergo ionic bonding?

a. neutrons

b. transitory electrons

c. valence electrons

d. electrical changes

c. lateral malleolus

Which of the following anatomical terms is NOT part of the knee?

a. medial collateral ligament

b. patella

c. lateral malleolus

d. lateral meniscus

d. 9

What is most likely the pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions (H+)?

a. 2

b. 6

c. 7

d. 9

d. melting, then vaporizing

What is the typical way a solid would turn a liquid and then to a gas?

a. vaporizing, then melting

b. melting, then freezing

c. vaporizing, then freezing

d. melting, then vaporizing

d. superior

Where is the scapula in relation to the olecranon?

a. distal

b. lateral

c. ventral

d. superior

c. The patient's symptoms and healthy history suggest that this test will enable the correct diagnosis to help the patient.

A doctor needs to convince his boss to approve a test for a patient. Which statement below best communicates a scientific argument that justifies the need for the test?

a. The patient looks like he needs this test.

b. The doctor feels that the patient needs this test.

c. The patient's symptoms and healthy history suggest that this test will enable the correct diagnosis to help the patient.

d. The patient has excellent insurance that will pay for several tests, and the doctor would like to run as many test as possible.

c. three

How many tissue layers does the uterus have?

a. one

b. two

c. three

d. four

d. 6s

Which of the following orbitals is the last to fill?

a. 1s

b. 3s

c. 4p

d. 6s

b. nails

Which of these body parts does NOT produce melanin?

a. hair

b. nails

c. skin

d. iris

b. Purine: Thymine

Which of these does NOT match the nitrogenous base to the nucleobase?

a. Purine: Adenine

b. Purine: Thymine

c. Pyrimidine: Uracil

d. Pyrimidine: Cytosine

a. cellulose

Which of the following is a carbohydrate?

a. cellulose

b. hemoglobin

c. estrogen

d. ATP

d. lowing the activation energy of the reaction

Enzymes catalzye biochemical reactions by

a. lowering the potential energy of the products

b. separating inhibitors from products

c. forming a complex with the products

d. lowing the activation energy of the reaction

Which is NOT a major type of carbohydrate?

a. monosaccharides

d. disaccharides

c. pentasaccharides

d. polysaccharides

Which is NOT a major type of carbohydrate?

a. monosaccharides

d. disaccharides

c. pentasaccharides

d. polysaccharides

d. CH4+2O2=CO2+2H2O

Which of the following answers shows CH4+O2=CO2+H20 as balanced?

a. CH4+2O=2CO2+2H20

b. 2CH4+4O2=2CO2+H2O

c. 2CH4+O2=2CO2+H2O

d. CH4+1O2=CO2+2H2O

a. NaCl

Which of the following molecules exhibits ionic bonding?

a. NaCl

b. CO2

c. C6H12O6

d. H2O

c. in the United States, most people use screens more than 3 but less than 13 hours a day.

Which of the following conclusions is supported by the data from this survey?

a. daily screen usage in the United States decreases with age.

b. daily screen usage in the United States increases with age.

c. in the United States, most people use screens more than 3 but less than 13 hours a day.

d. in the United States, people over 75 generally don't use screens .

a. there were not enough age groups to show a trend based on age

Given that there are over 100 million residential addresses in the United States, which of the following best describes a flaw of this survey as it is described?

a. there were not enough age groups to show a trend based on age

b. the addresses were chosen randomly rather than strategically

c. the distribution of ages in the sample did not reflect the actual population

d. each response represents only one person per address

d. hypothesis

A hypothesis is the use of prior knowledge in order to provide a hypothetical explanation for why something may or may not occur. A hypothesis can be proved wrong or right based on the results of the experiment and repeated trials.

What is a hypothetical explanation for an occurrence that is based on prior knowledge called?

a. independent variable

b. dependent cariable

c. trial

d. hypothesis

c. four

How many different types of nucleotides are there in DNA?

a. one

b. two

c. four

d. eight

b. supine

The supine position is an anatomical position where a person is laying on their back facing upward. Prone is the opposite position: a person who is prone is on their abdomen lying face down. A patient is in the lateral position when they are lying on their side. Medial is not a body position; it describes being in the middle.

A patient lying flat on their back is in which of the following positions?

a. prone

b. supine

c. lateral

d. medial

c. bottom-left corner

In general, atomic radius increases moving down a group due to the increasing number of electron shells. In general, the atomic radius decreases moving from left to right across a period due to the increasing number of protons in the energy level. Therefore, atoms of elements in the bottom-left corner of the periodic table tend to have the largest atomic radii.

In general, where in the periodic table of elements are in the elements with the largest atomic radii located?

a. upper-right corner

b. upper-left corner

c. bottom-left corner

d. bottom-right corner

d. Endocytic vesicles

Endocytosis is a process by which cells absorb larger molecues or even tiny organisms, such as bacteria, that would not be able to pass through the plasma membrane. Endocytic vesicles containing molecules from the extracelluar environment often undergo further processing once they enter the cell.

Which of the following are formed when the plasma membrane surrounds a particle outside of the cell?

a. Golgi bodies

b. rough endoplasmic reticulum

c. secretory vesicles

d. Endocytic vesicles

a. plants need more than 200ml of liquid per week.

Since only 2 out of the initial 16 plants survive the whole month, it woul dbe reasonable to test variables that were shared by all the plants. As such, the amount of liquid the plants need would be a good follow-up experiment. It is not specified as to which plants survived, sp there is not enough information to think that testing the impact of salt is warranted. Additionally, since almost all the plants died, it is not reasonable to assume that a combination of solutions would have an impact.

Your class is competing with another class to determine who can produce the tallest plants. Your class decides to test a couple of solutions to determine which would be best for overall plant growth before competing. starting with four sets of four plants, the class decides to water each set with a different solution. They water them once a week with 200ml of the of the following solutions: water, diet soda, 1% bleach solution, and 1% salt solution. All plants are placed in the window that receives the recommended amount of light. After a month of testing, your class notices that only two plants are alive, but one of these two does not look healthy. Based on these results, which of the following would be a good hypothesis to design the next experiment around?

a. plants need more than 200ml of liquid per week.

b. salt has no impact on plant health

c. salt contains useful nutrients for plants

d. a combination of the solutions tested will produce healthier plants.

a. phenotype

Phenotype is the physical presentation of an organism's genes. In other words, the phenotype is the physical characteristics of the organism. Phenotype is often contrasted with genotype, the genetic makeup of an organism. The genotype of the organism is not visible in its presentation, although some of the characteristics encoded in the genes have to do with physical presentation. A phylum is a group of classes that are closely related. A species is a group of organisms that are capable of breeding together and producing similar offspring.

What is the name for the physical presentation of an organism's genes?

a. phenotype

b. species

c. phylum

d. genotype

d. a tissue contains a single cell type that works to perform a specific function.

A tissue contains a variety of cell types that work in conjunction to perform similar functions. The cells are similar in structure despite being located throughout the body. There are four types of tissues in the human body: connective, epithelial, muscle, and nervous system tissues.

Which of the following statements is FALSE?

a. an organelle is a specialized structure in a cell, such as a ribosome.

b. an organ is made up of tissues that coordinate to perform specific functions.

c. organ systems are two or moreorgans performing similar functions.

a. the transport of oxygen and other nutrients to the tissues via the cardiovascular system

Circulation is the transportation of oxygen and other nutrients to the tissues via the cardiovasuclar system. Answer choice b. refers to blood pressure. Bronchi are the branching airways inside the lungs, while inhalation refers to the process of breathing in.

Which of the choices below is the best definition for the term circulation?

a. the transport of oxygen and other nutrients to the tissues via the cardiovascular system

b. the force exerted by blood against a unit area of the blood vessel walls.

c. the branching air passageways inside the lungs

d the process of breathing in

a. two genes next to each other on a chromosome

Two genes next to each other (or within a specified close distance) are said to be linked. Linked genes do not follow the law of independent assortment because they are too close together to be segregated from each other in meiosis.

Which of the following does NOT obey the law of independent assortment?

a. two genes next to each other on a chromosome

b. two genes on opposite end of a chromosome

c. flower color and height in snapdragons

d. seed color and flower color in peas

b. the duodenum

The duodenum is the first section of the small intestine. It receives partially digested food (also called chyme) from the stomach, further digesting it with the help of enzymes released by the gall bladder. Then the food enters the jejunum, then the ileum. The large intestine's main function is the reabsorption of water into the body to form solid waste It also allows for the absorption of vitamin K produced by microbes living inside the large intestine

Which section of the digestive system is responsible for receiving chyme and further digesting it?

a. the large intestine

b. the duodenum

c. the jejunum

d. the gallbladder

c. the ability to prevent earthquakes and other natural disaster

Scientist make observations, gather data, and complete research over many years in order to compiles knowledge that will provide insight into future disasters, such as earthquakes, storms, and global warming. Although science can be used to predict earthquakes and other natural disasters, there is currently no way of preventing them from occurring.

Which of the following is NOT provided as a result of the valid research and observations recoded by scientist?

a. a better understanding of the physical world

b. the ability to predict possible outcomes affected by actions

c. the ability to prevent earthquakes and other natural disaster

d. the creation of various substances and technologies that enhance our world

d. inversion

An inversion mutation is represented in the sequence 154326. An inversion error is a type of mutation where and entire sequence of DNA is omitted or lost.

What type of mutation is represented by the following sequence?

Original: 123456

Mutated: 154326

a. breakage

b. deletion

c. insertion

d. inversion

a. pituitary

c. pancreas

The pituitary and the pancreas are both structures of the endocrine system that produce hormones involved in body regulation, growth and development, sexual functioning, and other processes. The penis is a structure of the reproductive system that responds to hormones, but it does not produce them. The prostate plays a role in converting testosterone (produced in the testicles) into dihydrotestosterone, but does not actively produce hormones. The pons is located in the brain stem and relays nerve signals that coordinate messages between the brain and the body. The pericardium is a structural component of the cardiovascular systems.

Which of the following anatomical structures is directly involved in the production of homones?

(Select all that apply)

a. pituitary

b. penis

c. pancreas

d. prostate

e. pons

f. pericardium

c. micrometers

The best use of the International System of Unit (SI) would be the use of the micrometer as it is the smalled unit of measurement provided and the scientist is using a microscope to view the insects.

There are three insects that are being compared under a microscope. As a scientist, you decide that measuring them would be an imporant part of recording thei data. Which unit of measurement would be best for this situation?

a. centimeters

b. meters

c. micrometers

d. kilometers

b. the independent variable is the amount of water, and the dependent variable is the temperature at which the water boils

In a scientific experiment, the dependent variable is the condition that is being tested and measured. The independent variable is the condition that is being being changed or controlled. In this example, the amount of salt is varied, and the boiling point of water is measured. Therefore, the independent variable is the amount of salt, and the dependent variable is the temperature at which the water boils.

A chemistry experiment is performed to determine the effect of a nonvolatile solute on the boiling point of water. Three trials are performed in which 10 mg, 20 mg, and 30 mg of salt are adde dto 500 mL of distilled water. Each solution is heated on a hot plate, and the elevated boiling points are recorded. Which of the following correctly identifies the independent and dependent variables?

a. the independent variable is the amount of salt, and the dependent variable is the temperature at which water boils

b. the independent variable is the amount of water, and the dependent variable is the temperature at which the water boils

c. the independent variable is the temperature at which the water boils, and the dependent variable is the amount of salt

d. the independent variable is the amount of salt, and the dependent variable is the amount of water

c. specialized structures within a cell

Organelles are specialized structures within a cell that serve a specific function. For example, mitochondria supply energy to the cell by generating adenosine triphosphate. Ribosomes are the site for protein synthesis. The nucleus is in charge of all of the acitivities of the cell.

Which of the following statements best defines an organelle?

a. layer of polysaccharides outside the plasma membrane of cells

b. abnormal infectious protein

c. specialized structures within a cell

d. collection of tissues used to serve a specific function

d. Liquids have no definite shape and no definite volume.

Liquids have no definite shape, but they do have a definite volume. While the particles of liquids move more freely than those in solids, they do maintain a definite volume.

Which of the following statements concerning the states of matter is NOT true?

a. plasmas are high-temperature collections of ions and free electrons

b. solids are the least compressible due to the more rigid positions of the particles

c. gasses have no definite volume and expand to fill their containers

d. Liquids have no definite shape and no definite volume.

a. negative feedback

Maintaining homeostasis means that the conditions are kept stable and relatively constant. Negative feedback is a mechanism used to reverse or minimize changes in a system. In this example, negative feedback is used to keep the body's glucose and insulin levels stable. Positive feedback (b) is a mechanism that increases changes in a system. A stress response (c) describes the body's reaction to threats or pressures. Parasympathetic regulation (d) refers to activites of the nervous system, including slowing the heart rate and boosting intestinal activity.

When animals eat, insulin is released from the pancreas, stimulating glucose uptake by the liver. When glucose levels drop, the pancreas reduces insulin release. This is and example of which mechanism?

a. negative feedback

b. positive feedback

c. stress response

d. parasympathetic regulation

d. they are always active on more than one kind of substrate.

Enzymes are substrate-specific. Most enzymes catalyze only one biochemical reaction. Their active sites are specific for a certain type of substrate and do not bind to other substrates and catalyze other reactions.

Which of the following is NOT a characterisic of enzymes?

a. they change shape when they bind to their substrates

b. they can catalyze reactions in both forward and revers directions

c. their activity is sensitive to changes in temperature

d. they are always active on more than one kind of substrate.

a. single replacement

See image for question:

a. single replacement

b. double replacement

c. synthesis

d. decomposition

b. Area B

Area A: cell body

Area B: Synaptic vesicle

Area C: Synaptic cleft

Area D: Receptor

Identify the location where neurotransmitters are stored immediately prior to use (see image)

a. Area A

b. Area B

c. Area C

d. Area D

c. left ventricle

Which of the heart chambers is the largest?

a. left atrium

b. right atrium

c. left ventricle

d. right ventricle

b. axon

Which structure of the nervous system carries action potential in the direction of synapse?

a. cell body

b. axon

c. neuron

d. myelin

b. Disease X may be genetic

The Rutherfords have five children, all male. All five children were recently diagnosed with Disease X. What conclusion has the most rational basis for belief?

a. Disease X may be lethal

b. Disease X may be genetic

c. Disease X may be related to traditional nuclear family structures

d. Disease X may only affect males

b. correlation can show cause and effect

correlations may be positive or negative and linear or nonlinear. However, correlation does not determine cause and effect. Correlation does not necessarily mean causation.

Which of the following is NOT true concerning correlation?

a. correlation can show relationship between variables

b. correlation can show cause and effect

c. correlation can show linear relationship

d. correlation can show nonlinear relationships