(tristine) Flashcards _ 100- SURE
ANSWERS 2025 Questions And
Answers
1. What is the chemical formula for water?
H20
1. Which of the following is responsible for carrying amino
acids to ribosomes during protein synthesis?
- tRNA
,1. What are the steps involved in the scientific method?
- Observation, hypothesis, prediction, experimentation,
analysis, conclusion.
1. Which of the following ions binds to the troponin complex,
initiating contraction of a muscle?
- Calcium
1. Which of the following is the atomic number of an atom
that has 12 protons and 12 neutrons?
12
1. Which of the following structures in the female
reproductive system secretes hormones to maintain the
uterine lining during pregnancy?
Corpus luteum
1. In a hypertonic solution, water flows through aquaporins
embedded in the plasma membrane of the cell. This type of
transport is best known as which of the following?
Osmosis
1. Which of the following is correct regarding the pH scale?
- A substance with a pH of 3 is 10 times more acidic than a
substance with a pH of 4
1. 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
1. Which of the following properties of water explains its
solvent abilities for certain substances?
- Polarity of water molecules
1. The pleura is a connective tissue sheath that covers which
of the following organs?
- Lung
1. In the following data table of an experiment carried out at
4° C (39.2° F) over 4 hours, which of the following options
represents the dependent variable?
- Bag mass change
1. Which of the following substances protects the skin from
ultraviolet radiation?
- Melanin
1. Which of the following respiratory structures is affected by
a disease that disrupts gas exchange, such as emphysema?
- Alveoli
1. The hip is an example of which of the following type of
joints?
- Ball-and-socket
1. What are the three types of salivary glands and where are
they located in the mouth?
, - Parotid, sublingual, and submandibular glands located in the
roof of the mouth, cheeks, and under the jawbone,
respectively.
1. Which of the following substances is excreted by the
kidneys to regulate blood pressure?
- Renin
Which of the following units is used to indicate length?
M
researcher collects data on the number of cars passing
through a busy intersection at different times of the day for a
month. This data would be most useful to analyze which of
the following:
- traffic patterns during rush hour
1. What is the largest organ in the human body by surface
area?
- Skin
1. Which of the following describes the function of ligaments?
- Ligaments attach two bones
1. What is the difference between innate and adaptive
immunity?
- Innate immunity is present at birth while adaptive immunity is
acquired after exposure to pathogens.
1. What is the difference between a solid and a liquid?