Biology Flashcards
7 cards from real ATI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Biology flashcards as text
Which of the following is a function of the rough endoplasmic reticulum?
Answer: Protein synthesis and modification
The rough ER, studded with ribosomes, synthesizes and processes proteins.
What type of bond holds the two strands of a DNA double helix together?
Answer: Hydrogen bonds
Hydrogen bonds between complementary base pairs hold the two DNA strands together.
Which kingdom do bacteria belong to that lack a true membrane-bound nucleus?
Answer: Prokaryotes
Bacteria are prokaryotes, lacking a membrane-bound nucleus and organelles.
During cellular respiration, where does the electron transport chain occur in eukaryotes?
Answer: Inner mitochondrial membrane
The electron transport chain is embedded in the inner mitochondrial membrane.
If a trait is determined by a recessive allele, when will it be expressed?
Answer: Only when homozygous recessive
A recessive trait appears only when both alleles are recessive (homozygous recessive).
Which biomolecule serves as the primary long-term energy storage in animals?
Answer: Fats (lipids)
Lipids store the most energy per gram for long-term reserves in animals.
What is the term for the diffusion of water across a selectively permeable membrane?
Answer: Osmosis
Osmosis is the passive movement of water across a semipermeable membrane.