It’s Giving Bio
Which organelle in eukaryotic cells contains its own DNA and is inherited only from the mother?
mitochondrion
What is the only element that can form the basis of so many compounds due to its 4 valence electrons?
carbon
A car travels 120 km in 2 hours. What is its average speed?
60 km/h
Which type of rock forms when magma cools and solidifies?
igneous rock
What is the largest planet in our solar system?
Jupiter
Which enzyme unzips the DNA double helix during replication?
helicase
Which acid is found in car batteries?
sulfuric acid (H₂SO₄)
A force of 20 N is applied to a 4 kg object. What is its acceleration?
5 m/s² (F = ma)
What scale measures the energy released by an earthquake?
Richter scale
Which planet has the most extreme surface temperature difference between day and night?
Mercury
Which type of RNA carries amino acids to the ribosome for protein synthesis?
tRNA
What is the name of the reaction where an acid reacts with a base to form water and salt?
neutralization
A 10 kg box is lifted 2 meters. How much work is done? (g = 9.8 m/s²)
196 J (Work = mgh)
What is the name of the layer of Earth that is liquid and made mostly of iron and nickel?
outer core
What is the term for a star that suddenly increases greatly in brightness before fading?
nova
In genetics, what is the probability of producing a homozygous recessive offspring from two heterozygous parents?
25% (1 in 4)
If 36 g of water (H₂O) is formed, how many moles of water molecules are produced?
2 moles (36 ÷ 18 g/mol)
A wave has a frequency of 50 Hz and a wavelength of 4 m. What is its speed?
200 m/s (v = fλ)
What type of weather front is formed when a cold air mass pushes under a warm air mass?
cold front
How long does it take light from the Sun to reach Earth?
About 8 minutes and 20 seconds
What is the process by which cells engulf large particles into vesicles, sometimes called “cell eating”?
phagocytosis
What principle states that no two electrons in an atom can have the same set of four quantum numbers?
Pauli Exclusion Principle
A ball is thrown upward with an initial velocity of 20 m/s. How long will it take to reach maximum height? (g = 9.8 m/s²)
About 2.04 seconds (t = v ÷ g)
What is the process called when water seeps into cracks in rocks, freezes, expands, and breaks the rock apart?
frost wedging
What type of galaxy is the Milky Way classified as?
barred spiral galaxy