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#1
By TheQuizWireβ’Medium
What high-energy molecule serves as the primary and immediate source of chemical energy used to power the vast majority of metabolic processes and cellular activities in living organisms?
π‘ Explanation:Adenosine Triphosphate (ATP) is often called the 'energy currency' of the cell. Energy is released when the bond connecting the third phosphate group is broken, fueling activities such as muscle contraction and active transport.
#2
By TheQuizWireβ’Hard
Which bat species hunts birds in mid-air?
π‘ Explanation:Noctule bats are known to prey on birds during flight.
#3
By TheQuizWireβ’Hardβ’β Fact Checked
Which factor primarily determines the functional three-dimensional shape (conformation) of a mature protein?
π‘ Explanation:The primary structure of a protein is the unique, linear sequence of amino acids linked by peptide bonds. This sequence dictates the formation of secondary structures (alpha-helices and beta-sheets), which in turn determines the final tertiary structure (the unique 3D folding). Therefore, the amino acid sequence is the fundamental determinant of a protein's functional conformation. While environment (A), quaternary structure (C, if applicable), and cofactors (D) influence stability and activity, they do not primarily determine the inherent folding pattern.
#4
By TheQuizWireβ’Easy
What does the Watt measure?
π‘ Explanation:The Watt is the SI unit of power (energy per unit time).
#5
By TheQuizWireβ’Medium
What physical property of electromagnetic radiation (light) primarily determines the color that is perceived by a human observer?
π‘ Explanation:In the visible spectrum, the wavelength (or corresponding frequency) of light determines its color. Short wavelengths are perceived as violet and blue, while long wavelengths are perceived as red.
#6
By The Quiz Wire Editorial Teamβ’Mediumβ’β Fact Checked
What does the acronym CSIRO stand for?
π‘ Explanation:CSIRO is Australia's national science agency.
#7
By TheQuizWireβ’Easy
Which organ produces bile?
π‘ Explanation:The liver produces bile, which is then stored in the gallbladder.
#8
By TheQuizWireβ’Medium
What event can generate a gamma-ray burst?
π‘ Explanation:The violent destruction of a star by a black hole can release intense bursts of gamma rays.
#9
By TheQuizWireβ’Hardβ’β Fact Checked
Galaxy A has a greater cosmological redshift than Galaxy B. What does this imply about Galaxy A?
π‘ Explanation:According to Hubble's Law, a galaxy's recessional velocity ($v$) is directly proportional to its distance ($d$) from the observer ($v = H_0d$). Cosmological redshift is the measure of this recessional velocity, caused by the expansion of space itself. Therefore, a greater cosmological redshift implies a greater recessional speed and thus a greater distance from the observer.
#10
By TheQuizWireβ’Medium
What does a sun-like star become after shedding its outer layers?
π‘ Explanation:After the Red Giant phase, a star like the Sun sheds its layers, leaving behind a dense White Dwarf core.
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