Biology

Use this for “How many water molecules leave as the chain forms, or are needed to split it, and what is the polymer’s mass?”

Use this for “Antibodies are made of which kind of molecule?”

Use this for “Why can an insect stand on the surface of a pond?”

Use this for “How many Na⁺ and K⁺ ions does the pump move for 2 ATP?”

Use this for “Is it passive or active transport, and does it need a protein?”

Use this for “Onion cells in salt water shrink from their walls. Why?”

Use this for “How many CO₂ molecules make 2 glucose molecules, and are the atoms conserved?”

Use this for “Where does each stage of respiration happen, and which makes the most ATP?”

Use this for “Which process makes bread dough rise?”

Use this to record or read how fast an enzyme works at each temperature.

Use this for “20 of 100 root-tip cells are in mitosis. How long does mitosis last in a 24-hour cycle?”

Use this for “A body cell has 46 chromosomes. How many are in a gamete, and in a zygote?”

Use this for “In which phase of the cell cycle is DNA replicated?”

Use this for “What are the final products of meiosis?”

Use this for “Why do offspring from sexual reproduction vary more than those from mitosis?”

Use this for “A cell’s DNA is damaged before it is copied. Where in the cycle is it stopped?”

Use this for “How does a cancer cell differ from a normal body cell?”

Use this for “Why do offspring from sexual reproduction differ from both parents?”

Use this for “Which germ layer forms the brain and spinal cord?”

Use this for “Why does menstruation stop during pregnancy?”

Use this for “Which hormone keeps the uterine lining in the second half of the cycle?”

Use this for “Among 100 children of carrier parents (Ff × Ff), how many are expected to be Ff?”

Use this for “Two pink snapdragons are crossed. How many of 4 offspring are expected to be red, pink and white?”

Use this for “A roan bull and a white cow: how many calves in 4 are roan?”

Use this for “A carrier mother and a father with normal vision: what is the chance a son is color-blind?”

Use this for “Which two genotypes give the same blood type?”

Use this for “Can an affected son have a mother who does not show the trait?”

Use this for “A DNA sample is 30% adenine. What percent is guanine?”

Use this for “How does base pairing let a cell copy its DNA before it divides?”

Use this for “Put the steps of protein synthesis in order, from the gene in the nucleus.”

Use this for “Why does inserting one base change every amino acid after it?”

Use this for “One base is deleted from a gene. Which codons change, and is there still a stop codon?”

Use this for “A 5,000 bp piece is cut once, and one fragment is 3,000 bp. How long is the other?”

Use this for “Starting from 2 copies, how many copies are there after 10 cycles of PCR?”

Use this for “The codon GAA changes to GUA. What kind of mutation is it?”

Use this for “Which technique would make millions of copies of DNA from one hair?”

Use this for “Why does a bacterium make the enzymes for lactose only when lactose is there?”

Use this for “Which suspect’s DNA matches the evidence?” or “Could this man be the father?”

Use this for “A sample has 49 AA, 42 Aa and 9 aa. What are p and q?”

Use this for “Which forelimb is not homologous to the others?”

Use this for “Which two animals are most closely related?”

Use this for “Why does overusing antibiotics lead to resistant bacteria?”

Use this for “Put the steps of speciation after a population is split in order.”

Use this for “Which condition would change the allele frequencies in a population?”

Use this for “Methane-making microbes live in a cow’s stomach. Which domain are they in?”

Use this for “Is yeast a plant, a fungus or a protist?”

Use this for “Which rank is the most specific: family, genus or order?”

Use this for “Use the key to name the animal: it has no backbone and a segmented body.”

Use this for “A leafy shoot in a potometer takes up 4.8 mL of water in 6 hours. What is its rate?”

Use this for “Which tissue carries sugar from the leaves to the roots?”

Use this for “Why does a houseplant bend toward the window?”

Use this for “Why do farmers plant beans to add nitrogen to the soil?”

Use this for “Put these in order: pollination, fertilization, seed dispersal, germination.”

Use this for “Which part of the flower becomes the fruit?”

Use this for “A herd of 500 deer has 90 births, 40 deaths, 10 arrivals and 20 departures in a year. What is its new size?”

Use this for “Bacteria double every 15 minutes. How many are there after 2 hours, starting from 40?”

Use this for “Habitat loss crowds a population. Which limiting factor grows stronger?”

Use this for “Why does the number of bacteria level off and then fall?”

Use this for “Two protist species grow together in one dish. Which one wins, and why?”

Use this for “2 oak trees each carry 3,000 caterpillars, and a warbler eats 250 a season. How many warblers can they feed?”

Use this for “Phytoplankton hold 6 g/m² and zooplankton 18 g/m². How many grams of zooplankton are there for each gram of phytoplankton?”

Use this for “Which pond community is more diverse: 25, 5, 5, 5 or 10, 10, 10, 10?”

Use this for “Put these communities in the order they grow on new volcanic rock.”

Use this for “How do plants such as beans add nitrogen to the soil?”

Use this for “How do photosynthesis and respiration move carbon between the air and living things?”

Use this for “Which biome has permafrost and no trees?”

Use this for “Where does fresh water mix with salt water?”

Use this to record a place’s rainfall and temperature each month and see which biome it suits.

Use this for “Which organ system filters the blood and controls the water in it?”

Use this for “Insulin release slows once blood glucose is back to normal. What kind of feedback is it?”

Use this to record or read blood glucose after a meal and see insulin bring it back.

Use this for “An impulse travels 1 m from the toe to the spinal cord at 50 m/s. How long does it take?”

Use this for “What makes the inside of a neuron positive during an impulse?”

Use this to record a neuron’s membrane potential through one impulse.

Use this for “How does a signal pass from one neuron to the next?”

Use this for “Which part of the nervous system speeds up the heart in an emergency?”

Use this for “Which receptors in the eye respond to light?”

Use this for “Each case of a disease infects 5 people, and the vaccine works in 95% of people. What share must be vaccinated to stop it spreading?”

Use this for “Strep throat or the flu: which one can an antibiotic treat?”

Use this for “What do helper T cells do in the adaptive immune response?”

Use this for “Is a fever part of the innate or the adaptive immune response?”