ATI TEAS Science Section
Human Anatomy and Physiology (15 Questions)
- Which structure in the respiratory system is responsible for gas exchange?
- a) Trachea
- b) Bronchi
- c) Alveoli
- d) Larynx
- What is the primary function of red blood cells?
- a) Fight infection
- b) Transport oxygen
- c) Clot blood
- d) Produce hormones
- Which part of the brain regulates heart rate and breathing?
- a) Cerebrum
- b) Cerebellum
- c) Medulla oblongata
- d) Hypothalamus
- The pancreas secretes which hormone to regulate blood sugar levels?
- a) Adrenaline
- b) Insulin
- c) Thyroxine
- d) Cortisol
- Which type of muscle is found in the walls of blood vessels?
- a) Cardiac
- b) Skeletal
- c) Smooth
- d) Voluntary
- What is the functional unit of the kidney?
- a) Neuron
- b) Nephron
- c) Alveolus
- d) Glomerulus
- Which system is responsible for coordinating voluntary movements?
- a) Endocrine
- b) Nervous
- c) Lymphatic
- d) Digestive
- Where does the majority of nutrient absorption occur in the digestive system?
- a) Stomach
- b) Small intestine
- c) Large intestine
- d) Esophagus
- Which bone protects the brain?
- a) Femur
- b) Cranium
- c) Scapula
- d) Pelvis
- What is the role of the lymphatic system?
- a) Transport oxygen
- b) Maintain fluid balance and immunity
- c) Regulate body temperature
- d) Produce digestive enzymes
- Which chamber of the heart pumps blood into the aorta?
- a) Right atrium
- b) Right ventricle
- c) Left ventricle
- d) Left atrium
- What is the primary source of energy for skeletal muscles during exercise?
- a) ATP (Adenosine Triphosphate)
- b) Glucose
- c) Oxygen
- d) Lactic acid
- Which structure in the eye focuses light onto the retina?
- a) Cornea
- b) Lens
- c) Iris
- d) Pupil
- What is the function of the epiglottis?
- a) Produce saliva
- b) Prevent food from entering the trachea
- c) Filter blood
- d) Regulate air pressure
- Which type of joint allows for the greatest range of motion?
- a) Hinge
- b) Pivot
- c) Ball-and-socket
- d) Suture
Biology (10 Questions)
- What molecule carries genetic information in cells?
- a) DNA
- b) RNA
- c) Protein
- d) Lipid
- During which phase of mitosis do chromosomes align at the cell’s equator?
- a) Prophase
- b) Metaphase
- c) Anaphase
- d) Telophase
- What is the primary source of energy for Earth’s climate system?
- a) Geothermal energy
- b) Solar radiation
- c) Fossil fuels
- d) Wind energy
- Which organelle is responsible for protein synthesis?
- a) Mitochondria
- b) Ribosome
- c) Golgi apparatus
- d) Lysosome
- What process describes the movement of water across a semipermeable membrane?
- a) Diffusion
- b) Osmosis
- c) Active transport
- d) Filtration
- Which type of cell division produces gametes?
- a) Meiosis
- b) Mitosis
- c) Binary fission
- d) Budding
- What is the role of chlorophyll in plants?
- a) Store energy
- b) Absorb light for photosynthesis
- c) Transport nutrients
- d) Protect against pathogens
- Which molecule is the final electron acceptor in the electron transport chain?
- a) Glucose
- b) Oxygen
- c) Carbon dioxide
- d) Water
- What is the term for a segment of DNA that codes for a specific protein?
- a) Chromosome
- b) Gene
- c) Nucleotide
- d) Codon
- Which structure in a plant cell provides structural support?
- a) Nucleus
- b) Cell wall
- c) Mitochondria
- d) Chloroplast
Chemistry (10 Questions)
- What is the pH of a neutral solution at room temperature?
- a) 0
- b) 7
- c) 14
- d) 10
- Which type of bond involves the sharing of electrons?
- a) Ionic
- b) Covalent
- c) Hydrogen
- d) Metallic
- What gas makes up the majority of Earth’s atmosphere?
- a) Oxygen
- b) Nitrogen
- c) Carbon dioxide
- d) Argon
- What is the atomic number of an element based on?
- a) Number of neutrons
- b) Number of protons
- c) Number of electrons
- d) Atomic mass
- Which type of reaction releases energy?
- a) Endothermic
- b) Exothermic
- c) Neutralization
- d) Synthesis
- What is the chemical formula for water?
- a) CO2
- b) H2O
- c) NaCl
- d) O2
- Which subatomic particle has a negative charge?
- a) Proton
- b) Neutron
- c) Electron
- d) Nucleus
- What is the term for a substance that speeds up a chemical reaction without being consumed?
- a) Reactant
- b) Product
- c) Catalyst
- d) Inhibitor
- Which element is essential for organic compounds?
- a) Nitrogen
- b) Carbon
- c) Oxygen
- d) Hydrogen
- What type of bond holds water molecules together in liquid water?
- a) Covalent
- b) Ionic
- c) Hydrogen
- d) Metallic
Scientific Reasoning (9 Questions)
- A scientist observes that plants grow taller in sunlight than in shade. What is the independent variable?
- a) Plant height
- b) Amount of sunlight
- c) Soil type
- d) Water amount
- Which of the following is a hypothesis?
- a) The experiment was conducted at 25°C.
- b) Increasing water intake improves cognitive function.
- c) The data showed a 10% increase in growth.
- d) The control group received no treatment.
- What is the purpose of a control group in an experiment?
- a) To receive the experimental treatment
- b) To provide a baseline for comparison
- c) To test multiple variables
- d) To ensure the experiment fails
- A researcher measures the heart rate of participants before and after exercise. What type of data is this?
- a) Qualitative
- b) Quantitative
- c) Descriptive
- d) Categorical
- Which tool is most appropriate for measuring the volume of a liquid?
- a) Thermometer
- b) Graduated cylinder
- c) Balance
- d) Ruler
- What is the first step in the scientific method?
- a) Conduct an experiment
- b) Analyze data
- c) Ask a question
- d) Form a conclusion
- If a hypothesis is disproven, what should a scientist do next?
- a) Ignore the results
- b) Revise the hypothesis
- c) Repeat the same experiment
- d) Publish the results unchanged
- Which of the following is an example of a controlled variable?
- a) The amount of fertilizer given to plants
- b) The growth rate of plants
- c) The type of soil used for all plants
- d) The height of the plants
- A scientist concludes that a drug reduces blood pressure based on one trial. What is a limitation of this conclusion?
- a) The sample size was too large
- b) The results may not be reproducible
- c) The experiment was too controlled
- d) The hypothesis was not clear
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