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ATI TEAS - Practice Tests, Exams of Advanced Education

University of LimpopoAdvanced Education

ATI TEAS - Practice Tests Question and correct answers

Typology: Exams

2025/2026

Available from 12/04/2025

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ATI TEAS - Practice Tests
Adrenal
Which of the following glands is found on top of the kidneys?
- Thyroid
- Pituitary
- Adrenal
- Pancreas
Primary consumer
Seaweed -> Snail -> Fish
-> Dolphin
Using the food chain above, which of the following terms best describe the trophic level
of snails?
- Producer
- Primary consumer
- Secondary consumer
- Tertiary consumer
use energy of sun or chemicals to fix carbon into organic materials
Producer
Herbivores; obtain carbon and energy from organic materials fixed by producers
Primary consumer
Carnivores; obtain carbon and energy from organic materials from primary consumers
Secondary consumer
Keystone predators; obtain carbon and energy from organic materials from secondary
consumers
Tertiary consumer
Pineal
Which of the following glands produces melatonin, the hormone that regulates sleep?
- Thyroid
- Hypothalamus
- Pituitary
- Pineal
To transport urine out of the body
What is the role of the urethra?
- To transport urine out of the body
- To transport the egg to the uterus
- To connect the kidneys to the bladder
- To connect the uterus to the outside of the body
Dopamine binds to receptor proteins on the membrane of the postsynaptic cell
Which of the following results from the release of neurotransmitter dopamine into the
nerve synapse?
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ATI TEAS - Practice Tests

Adrenal Which of the following glands is found on top of the kidneys?

  • Thyroid
  • Pituitary
  • Adrenal
  • Pancreas Primary consumer Seaweed -> Snail -> Fish -> Dolphin Using the food chain above, which of the following terms best describe the trophic level of snails?
  • Producer
  • Primary consumer
  • Secondary consumer
  • Tertiary consumer use energy of sun or chemicals to fix carbon into organic materials Producer Herbivores; obtain carbon and energy from organic materials fixed by producers Primary consumer Carnivores; obtain carbon and energy from organic materials from primary consumers Secondary consumer Keystone predators; obtain carbon and energy from organic materials from secondary consumers Tertiary consumer Pineal Which of the following glands produces melatonin, the hormone that regulates sleep?
  • Thyroid
  • Hypothalamus
  • Pituitary
  • Pineal To transport urine out of the body What is the role of the urethra?
  • To transport urine out of the body
  • To transport the egg to the uterus
  • To connect the kidneys to the bladder
  • To connect the uterus to the outside of the body Dopamine binds to receptor proteins on the membrane of the postsynaptic cell Which of the following results from the release of neurotransmitter dopamine into the nerve synapse?
  • the presynaptic neuron fires an action potential
  • Dopamine binds to receptor proteins on the membrane of the postsynaptic cell
  • Dopamine enters the cytoplasm of the post synaptic cell
  • Dopamine causes the postsynaptic nerve cell to contract Particles have a large amount of empty space between them Which of the following explains why gases are termed "compressible" and liquids are not?
  • Particles have fixed volume and are able to occupy the container in which they are contained
  • Particles do not have much empty space between them, thus making them rigid
  • Particles have a large amount of empty space between them
  • Particles are held closely together by intermolecular forces Potential energy Which of the following is the form of energy contained in nutrient molecules and in ATP's high-energy bonds?
  • Mechanical energy
  • Potential energy
  • Kinetic energy
  • Radiation energy The release of insulin from the pancreas in response to an increase in blood sugar levels Which of the following illustrates a negative feedback mechanism that occurs in the human body?
  • The release of insulin from the pancreas in response to an increase in blood sugar levels
  • The release of glucagon from the pancreas in response to an increase in blood sugar levels
  • The release of oxytocin resulting in uterine contractions as childbirth is underway
  • Chemical reactions that result in coagulation due to fibrin being released To establish a standard for data comparison Which of the following is the purpose of using control groups in an investigation?
  • To establish a standard for data comparison
  • To provide the correct answer to an investigation
  • To determine the dependent variables
  • TO function as a third variable group Carbon dioxide levels decrease, causing an increase in blood pH Which of the following explains what happens in the circulatory system during hyperventilation?
  • oxygen levels increase, causing an increase in blood pH
  • Oxygen levels decrease, causing a decrease in blood pH
  • Carbon dioxide levels decrease, causing an increase in blood pH
  • Carbon dioxide levels increase, causing a decrease in blood pH Epidermis only A first degree burn involves which of the following layers of skin?
  • Epidermis only

Which of the following is the sequence in which these steps take place?

  • 3, 2, 1
  • 1, 3, 2
  • 2, 1, 3
  • 2, 3, 1 Tendons Which of the following connects bones to muscles?
  • Ligaments
  • Tendons
  • Synovium
  • Suture Keratin Nails are made of a protein called
  • collagen
  • vinculin
  • keratin
  • elastin Cowper's Which of the following glands is exclusively found in males?
  • Adrenal
  • Parathyroid
  • Cowper's
  • Pituitary Estrogen Which of the following hormones is produced in the ovaries?
  • Estrogen
  • Vasopressin
  • Prolactin
  • Oxytocin The digestive system facilitates absorption of substances into the bloodstream Which of the following statements correctly matches a body system with its function?
  • The digestive system facilitates absorption of substances into the bloodstream
  • The respiratory system transports oxygenated blood throughout the lungs and body
  • The excretory system prevents harmful substances from enter the body
  • The endocrine system transports hormones from place to place within the body Equipment and methods developed since the 1930s may produce better data and provide mechanistic detail A researcher decides to repeat an experiment and reassess results first established in the 1930s about why plants grow toward light. Which of the following is the best reason for conducting this experiment?
  • plant behavior could have modified due to evolutionary processes since the experiments were first done
  • New breeds of plants discovered since the 1930s have not yet been shown to have the same light response
  • Shifts in average temperatures produced by global warming may affect plants in ways

that they are not yet understood

  • Equipment and methods developed since the 1930s may produce better data and provide mechanistic detail Amylase Which of the following enzymes breaks down complex carbohydrates?
  • Amylase
  • Pepsin
  • Lactase
  • Lipase Chloroplast DNA shows clear similarities to cyanobacterial DNA It has been hypothesized that chloroplasts originated from photosynthetic cyanobacteria that become symbiotic inside a host cell. Which of the following observations provides the strongest evidence for this suggestion?
  • Microscopically, chloroplasts appear similar to cyanobacteria
  • Chloroplast DNA hows clear similarities to cyanobacterial DNA
  • Both chloroplasts and cyanobacteria are green and perform photosynthesis
  • Photosynthetic cyanobacteria and fungi form a mutualistic association in lichen Demineralization Which of the following processes explains why an individual that has suffered a broken bone and is immobilized for an extended period of time experiences bone mass loss?
  • Demineralization
  • Muscle atrophy
  • Ossification
  • Kyphosis Gallbladder Which of the following organs stores bile?
  • Stomach
  • Liver
  • Small intestine
  • Gallbladder Elevated white blood cell count A blood sample take from a patient fighting an infection is expected to show
  • reduced white blood cell count
  • elevated white blood cell count
  • elevated red blood cell count
  • reduced red blood cell count use of genetic information to build specific protein molecules Which of the following describes the function of the ribosome in a living cell?
  • Production of ATP molecules from energy in nutrient molecules
  • Disposal and recycling of damaged or unneeded cell parts
  • Use of genetic information to build specific protein molecules
  • Regulation of molecules entering and leaving the cell Anemia Which of the following conditions is related to an abnormality in the function of red blood cells?
  • nucleotides
  • amino acids Acetylcholine Skeletal muscle contraction is stimulated by the neurotransmitter __________, which is released by nerves at the neuromuscular junction.
  • acetylcholine
  • nitric oxide
  • dopamine
  • glycine Stratum basale Which of the following layers of the epidermis contains cells that provide protection against UV radiation?
  • Stratum corneum
  • Stratum lucidum
  • Stratum spinosum
  • Straum basale Rough endoplasmic reticulum Pancreatic cells have an abundance of _____ to meet the protein production demands of the cell
  • nuclei
  • mitochondria
  • lysosomes
  • rough endoplasmic reticulum express alternate genetic information The cause of cell differentiation is that different cells
  • contain different DNA
  • have different chromosomes
  • contain similar protein information
  • express alternate genetic information damage to the spleen causes massive blood loss Which of the following explains why damage to the spleen is a critical concern?
  • damage to the spleen reduces the production of granulocytes
  • damage to the spleen causes massive blood loss
  • damage to the spleen results in loss of clotting ability
  • damage to the spleen results in decreased red blood cell production and maturation scrotum Which of the following contains the testes?
  • Epididymis
  • Mesentery
  • Prostate
  • Scrotum MgCl2 + 2H2O Mg(OH)2 + HCI -> The equation above is unbalances. Which of the following shows the molar products of the neutralization reaction after balancing?
  • 2MgCl2 + H2O
  • 2MgCl2 + 2H2O
  • MgCl2 + H2O
  • MgCl2 + 2H2O The blood will become more basic H^+ + HCO (^) ⟷ H2O + CO Based on the equation above occurring in blood, which of the following would result if the reaction is moving in a forward direction?
  • Blood pressure will decrease
  • The blood will become more acidic
  • The blood will become more basic
  • Proton concentration will increase Tendon Which of the following is a collagen-rich material that connects muscle to bone?
  • Tendon
  • Ligament
  • Reticular tissue
  • Areolar tissue It degrades aged RBC Which of the following is the function of the spleen in a healthy adult human?
  • It stores bile produced in the liver
  • It synthesizes platelets
  • It degrades aged RBC
  • It is a vestigial organ Sphincter Which of the following is the circular muscle that regulates the opening and closing of a body aperture?
  • Fossa
  • Fascia
  • Sphincter
  • Valve Dendritic cells Which of the following is a type of specialized antigen processing cell that activates T cells of the immune system?
  • Plasma cells
  • Thrombocytes
  • Dendritic cells
  • Eosinophils The lack of oxygen leading to increased fermentation Which of the following causes lactic acid to build up in muscle cells?
  • The lack of oxygen leading to increased fermentation
  • An excess of carbon dioxide redirected to make lactic acid
  • The decrease in glucose supply to the muscle
  • An increase in blood supply to the muscle
  • Tropomyosin covers myosin binding sites
  • ATP binds to myosin heads A normal gene should be supplied in place of the defective one before therapy A pt who has a mutation that causes type 1 diabetes mellitus is trying a therapy that will use their own stem cells to restore their insulin production. Before their stem cells can be used for therapy, which of the following should be done?
  • The stem cells should be inactivated with UV radiation
  • A normal gene should be supplied in place of the defective one before therapy
  • The pt should be counseled about passing on genetically altered cells to offspring
  • The pt should be tested to ensure that their body will not reject the stem cells Hypothalamus and anterior pituitary Which of the following pairs of endocrine glands are linked by a venous blood portal system?
  • Liver and pancreas
  • Hypothalamus and anterior pituitary
  • Pancreas and spleen
  • Anterior pituitary and thyroid Aldosterone Which of the following hormones is released in response to a drop in blood pressure?
  • Melatonin
  • Somatostatin
  • Oxytocin
  • Aldosterone Physis Damage to which of the following sites will most likely result in the stunted growth of a prepubescent child?
  • Physis
  • Shaft
  • Periosteum
  • Endosteum Transverse Which of the following anatomical plans divides the body into superior and inferior portions?
  • Sagittal
  • Median
  • Transverse
  • Frontal Oxytocin (OT) Which of the following hormone is involved in the process of labor and childbirth?
  • Luteinizing hormone (LH)
  • Gonadotrophin releasing hormone (GnRH)
  • Thyroxine (T4)
  • Oxytocin (OT) Histamine dilates blood vessels, which increases blood flow to the area

Which of the following describes the action of histamine as a response to a bee sting?

  • Histamine dilates blood vessels, which increases blood flow to the area
  • Histamine degrades antigens through its catalytic activity
  • Pathogens become trapped in histamine and are unable to infect the body
  • Histamine triggers the release of the protein interferon Sarcoplasmic reticulum Which of the following is the cellular organelle that stores calcium ions in skeletal muscle?
  • Golgi apparatus
  • Sarcoplasmic reticulum
  • Lyosome
  • Centriole Fallopian tubes Which of the following connects the ovaries to the uterus?
  • Vas deferens
  • Ureters
  • Fallopian tubes
  • Urethra Maxilla Which of the following bones is the large fused bone of the upper jaw that contains teeth?
  • Mandible
  • Maxilla
  • Vomer
  • Clavicle Transpiration Plants return water from their leaves to the atmosphere as water vapor. What is the name of this process?
  • Sublimation
  • Transpiration
  • Accumulation
  • Condensation 2, 1, 3 Three liquids are being studied. Samples of liquid 1 and liquid 2 are placed in a container together. Liquid 1 rises to the top. Another sample of liquid 1 is placed in a different container together with liquid 3. This time, liquid 3 rises to the top. If all three liquids are layered in one container, which of the following would be the correct order of the liquids from the bottom to the top?
  • 2, 3, 1
  • 3, 2, 1
  • 1, 3, 2
  • 2, 1, 3 Short stretches of complementary sequences can cause RNA to fold back on itself. Which of the statements best explains why RNA inside a cell is almost never found as a single stranded molecule?

Which of the following will occur if a person who has blood type A receives type B blood?

  • B antigens on the surface of the recipient's red blood cells will cause their red blood cells to clump
  • Antibodies against blood type B will be produced in the recipient's blood plasma
  • Existing antibodies against blood type A in the recipient's blood plasma will cause red blood cells to clump
  • People who have blood type A can receive blood type B with no reaction Mucous membrane The innermost lining of the digestive tract is largely comprised of which of the following?
  • Serous mesothelium
  • Stratified squamous epithelium
  • Smooth muscle
  • Mucous membrane Hypodermis Adipose tissue is stored in which of the following layers of the skin?
  • Epidermis
  • Dermis
  • Hypodermis
  • Dermal papillae Thyroid hormones Which of the following hormones requires iodine for its production?
  • Thyroid hormones
  • Melatonin
  • Parathyroid hormones
  • Calcitonin The sarcomeres shorten The sliding filament theory proposes that which of the following occurs during the contraction phase of muscle?
  • The sarcomeres shorten
  • Myosin degenerates
  • Actin binds calcium ions
  • ATP is produced by myosin B cells release antibodies targeted to a bacterial pathogen Which of the following events describes an acquired (adaptive) immune response?
  • B cells release antibodies targeted to a bacterial pathogen
  • Macrophages migrate to a site of infection to engulf pathogens
  • lysozymes digest microbial cell walls
  • complement proteins mediate reactions leading to the lysis of invading cells Hyoid Which of the following is an irregular bone of the throat that aids in tongue movement and swallowing?
  • Stapes
  • Hyoid
  • Ischium
  • Calcaneus Bone marrow In which of the following locations do most white blood cells originate?
  • Bone marrow
  • Pancreas
  • Spleen
  • Large intestine Acinar cells Pancreatic secretions that aid in digestion of food are produced by which of the following types of cells?
  • Islet alpha cells
  • Islet beta cells
  • Acinar cells
  • Sphincter cells Stimulus, receptor, integration, effector, response Which of the following options lists the correct order of events in a signaling pathway in a feedback loop used to maintain homeostasis?
  • Receptor, effector, integration, stimulus, response
  • Receptor, stimulus, integration, response, effector
  • Stimulus, effector, integration, receptor, response
  • Stimulus, receptor, integration, effector, response AA and BB In human blood types, A and B alleles are codominant, and O is recessive. Which combination of the mother's and father's genotype has the highest probability of producing a child with blood type AB?
  • AB and BO
  • AO and BO
  • AA and BB
  • AB and AB