Hesi A2 Biology Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

Hesi A2 Biology Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What organelle in plants stores water and nutrients? Central vacuole What molecule is the main component of cell membranes? Phospholipids What term describes a membrane that allows some substances to pass but not others? Selective permeability What organelle is sometimes called the "powerhouse of the cell"? Mitochondria What process converts glucose into ATP inside the mitochondria? Cellular respiration 2 What process converts sunlight into glucose inside chloroplasts? Photosynthesis What is the name of the pigment in chloroplasts that captures light energy? Chlorophyll What type of bond connects the phosphate and sugar backbone in DNA? Covalent bond What type of bond connects complementary base pairs in DNA? Hydrogen bond What are the building blocks of proteins? Amino acids What are the building blocks of nucleic acids? Nucleotides 3 What organelle contains digestive enzymes that can break down old organelles? Lysosomes What is the network of fibers that helps the cell maintain its shape and move? Cytoskeleton What is the role of messenger RNA (mRNA)? Carry genetic instructions from DNA to ribosomes What is the role of transfer RNA (tRNA)? Bring amino acids to the ribosome during protein synthesis What is the basic unit of life in all living organisms? The cell What organelle is responsible for producing ATP in eukaryotic cells? Mitochondria 4 What is the main function of ribosomes in the cell? Protein synthesis What structure controls the movement of substances in and out of the cell? Cell membrane Where is DNA stored in eukaryotic cells? Nucleus What type of cells lack a nucleus? Prokaryotic cells What organelle is responsible for photosynthesis