Question 1
TEAS Science Version 7. Which of the following is the process by which a cell copies its DNA prior to cell division?
- Transcription
- Translation
- DNA Replication
- Recombination
Question 2
Which of the following units is used to measure the mass of an object in the metric system?
- Liter
- Meter
- Gram
- Second
Question 3
Which of the following digestive organs is the primary site of nutrient absorption?
- Stomach
- Small intestine
- Large intestine
- Esophagus
Question 4
Which of the following is a characteristic of a chemical change? TEAS Science Version 7
- Change in state of matter
- Formation of a new substance
- Change in shape
- Mixing two substances without a reaction
Question 5
In the human body, which of the following systems is responsible for transporting oxygen and nutrients to cells?
- Digestive system
- Circulatory system
- Respiratory system
- Excretory system
Question 6
Which of the following is the function of the myelin sheath in the nervous system?
- To increase the speed of electrical impulses
- To produce neurotransmitters
- To store energy for neurons
- To provide structural support to the brain
Question 7
What is the name of the process by which plants convert sunlight into chemical energy?
- Respiration
- Fermentation
- Photosynthesis
- Oxidation
Question 8
Which of the following components of the blood is responsible for clotting?
- Red blood cells
- White blood cells
- Platelets
- Plasma
Question 9
In a neutral atom, the number of protons is equal to the number of which of the following?
- Neutrons
- Electrons
- Nuclei
- Isotopes
Question 10
Which of the following is the basic functional unit of the kidney?
- Neuron
- Nephron
- Alveolus
- Sarcomere
Question 11
Which of the following describes the function of the ribosome?
- Protein synthesis
- Energy production
- Waste removal
- Storage of genetic information
Question 12
Which of the following organic molecules contains an amino functional group?
- Proteins
- Lipids
- Carbohydrates
- Nucleic acids
Question 13
Which of the following is a result of a surge in luteinizing hormone (LH) in the female reproductive system?
- Ovulation
- Menstruation
- Thickening of the uterine lining
- Production of estrogen
Question 14
Which of the following types of bonds link base pairs in a DNA double helix?
- Hydrogen bonds
- Covalent bonds
- Ionic bonds
- Peptide bonds
Question 15
Which of the following is the process by which gametes are produced?
- Meiosis
- Mitosis
- Binary fission
- Fertilization
Question 16
Excessive consumption of alcohol is most likely to damage which organ of the body over a long period of time? TEAS Science Version 7
- Kidney
- Liver
- Pancreas
- Gallbladder
Question 17
Which of the following is not considered a type of radiation ray?
- Gamma
- Beta
- Alpha
- Infrared
Question 18
A molecule of hemoglobin can hold how many molecules of oxygen in the blood for transport?
- 2
- 4
- 6
- 8
Question 38
Which of the following is the physiological function of Dermcidin and cathelicidin?
- Neurotransmitters
- Chemical messengers
- Digestive enzymes
- Antimicrobial peptides
Question 19
Pepsin, which speeds up the breakdown of proteins, is classified as
- a lipid.
- a nucleic acid.
- an enzyme.
- a carbohydrate.
Question 20
In which of the following organs does fertilization occur?
- Ovaries
- Uterus
- Fallopian tubes
- Vagina
Question 21
A species of beetle is brown and lives only on brown trees. Sometimes, genetic mutation results in a few white beetles, but they are quickly eaten by birds. If all the trees in the forest were painted white, which of the following would be the most likely outcome?
- The brown beetles would lay more white beetle eggs.
- The population of white beetles would increase.
- The brown beetles would turn white.
- Brown beetles would become extinct from the population.
Question 22
Which of the following is the function of the nephron glomerulus?
- Reabsorbs water into the blood that increases blood pressure
- Allows K+, Na+ and Cl- to move out of the filtrate through both active and passive transport
- Responds to presence of ADH to control water reabsorption and produce a concentrated urine
- Produces a filtrate that is then processed by the renal tubule
Question 23
Which of the following is an example of the adhesive property of water?
- Water molecules support the weight of a small insect.
- Raindrops stick to the outside of a window.
- Small water droplets cling together to make one large water droplet.
- Water and oil separate into two distinct layers.
Question 24
Which of the following lists the order of tissues in the gastrointestinal tract, from the innermost layer to the outermost layer?
- Muscularis, serosa, mucosa, submucosa
- Mucosa, submucosa, muscularis, serosa
- Submucosa, mucosa, serosa, muscularis
- Serosa, mucosa, submucosa, muscularis
Question 26
Which of the following hormones is responsible for regulating sodium reabsorption in the kidneys?
- Calcitriol
- Thyroxine
- Aldosterone
- Erythropoietin
Question 27
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.
- Worm infestations exacerbate the body’s immune reactions.
- Lack of worm infestations is the cause of some autoimmune disorders.
- Worm infestation prevents the body from immune malfunction.
Question 29
Which of the following statements describes changes in the tubes that conduct air from the primary bronchi toward the bronchioles?
- Epithelial layer gets thinner.
- Cilia become more plentiful.
- Tube diameter increases.
- Cartilage rings become larger.
Question 31
Which of the following is generally expected to be true about birth rates in relation to death rates for a country with a growing population and high infant mortality?
- Birth rates equal to death rates
- Birth rates lower than death rates
- Higher birth rates than death rates
- Birth rates variable compared to death rates
Question 32
Which of the following is true regarding the structure of atoms?
- Isotopes of an element differ in the number of protons in the nucleus.
- The neutrons make up a significant part of the atomic mass.
- The amount of charge on a proton is greater than the amount of charge on an electron.
- The mass of each electron is the same as the mass of each proton.
Question 33
Which of the following describes how the carbonic acid bicarbonate blood buffer system responds when an alkaline substance enters the blood stream?
- Hydroxide ions (OH−) released from bicarbonate ions (HCO3−) neutralizes hydrogen ions (H+) to raise blood pH.
- Hydroxide ions (OH−) released from bicarbonate ions (HCO3−) neutralizes hydrogen ions (H+) to resist change in blood pH.
- Hydrogen ions (H+) ions released from carbonic acid neutralizes hydroxide ions (OH−) to raise blood pH.
- Hydrogen ions (H+) ions released from carbonic acid neutralizes hydroxide ions (OH−) to resist change in blood pH.
Question 35
The basal body is a structure associated with which of the following parts of a cell?
- Nucleus
- Flagella
- Mitochondria
- Ribosome
Question 36
Which of the following organelles is enriched in skeletal muscle cells?
- Mitochondria
- Lysosomes
- Golgi bodies
- Centrioles
Question 39
Which of the following describes the function of the ribosome?
- Protein synthesis
- Energy production
- Waste removal
- Storage of genetic information TEAS Science Version 7
Question 40
Which of the following organic molecules contains an amino functional group?
- Proteins
- Lipids
- Carbohydrates
- Nucleic acids
Question 41
Which of the following is a result of a surge in luteinizing hormone (LH) in the female reproductive system?
- Ovulation
- Menstruation
- Thickening of the uterine lining
- Production of estrogen
Question 42
Which of the following types of bonds link base pairs in a DNA double helix?
- Hydrogen bonds
- Covalent bonds
- Ionic bonds
- Peptide bonds
Question 43
Which of the following is the process by which gametes are produced?
- Meiosis
- Mitosis
- Binary fission
- Fertilization
Question 44
Excessive consumption of alcohol is most likely to damage which organ of the body over a long period of time?
- Kidney
- Liver
- Pancreas
- Gallbladder
Question 45
Which of the following is not considered a type of radiation ray?
- Gamma
- Beta
- Alpha
- Infrared
Question 46
A molecule of hemoglobin can hold how many molecules of oxygen in the blood for transport?
- 2
- 4
- 6
- 8
Question 47
Which property of water allows pond insects like water striders to walk across its surface without sinking?
- Adhesion
- Hydrogen bonding (Surface Tension)
- Polarity
- High specific heat
Question 48
Which of the following are formed when the plasma membrane surrounds a particle outside of the cell?
- Golgi bodies
- Rough endoplasmic reticulum
- Secretory vesicles
- Endocytic vesicles
Question 49
Which of these does NOT match the nitrogenous base to the nucleobase category?
- Purine: Adenine
- Purine: Thymine
- Pyrimidine: Uracil
- Pyrimidine: Cytosine
Question 50
In general, where in the periodic table of elements are the elements with the largest atomic radii located?
- Upper-right corner
- Upper-left corner
- Bottom-left corner
- Bottom-right corner
