Science: Biology and Life Science Flashcards
7 cards from real TEAS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Science: Biology and Life Science flashcards as text
Which organelle is the primary site of ATP production in eukaryotic cells?
Answer: Mitochondrion
Mitochondria generate most cellular ATP through aerobic respiration.
During which phase of mitosis do sister chromatids separate and move to opposite poles?
Answer: Anaphase
Sister chromatids are pulled apart toward opposite poles during anaphase.
What molecule carries the genetic instructions used to build proteins during translation?
Answer: mRNA
Messenger RNA carries the codon sequence read by ribosomes during translation.
Which of the following best describes an enzyme's role in a chemical reaction?
Answer: It lowers activation energy
Enzymes are catalysts that lower the activation energy needed for a reaction.
In a typical food chain, organisms that produce their own food using sunlight are called what?
Answer: Producers
Producers, such as plants, make their own food through photosynthesis.
Which blood vessels carry oxygen-rich blood away from the heart to the body?
Answer: Arteries
Arteries carry oxygenated blood away from the heart (except the pulmonary artery).
A trait that is masked when a dominant allele is present is described as what?
Answer: Recessive
A recessive trait is expressed only when no dominant allele is present.