Uzbekistan National Certificate (Milliy sertifikat) · Biology, Geography and History
Biology
29 practice questions, each with the answer and an explanation.
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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 29 questions
- In which organelle does photosynthesis take place?
- Which organelle releases most of the cell's energy by aerobic respiration?
- What does DNA stand for?
- In DNA, adenine pairs with which base?
- What are the products of photosynthesis?
- Which part of the blood carries oxygen?
- What is the function of enzymes in a cell?
- Two heterozygous pea plants (Tt) are crossed. What is the ratio of tall (dominant) to short plants in the offspring?
- What does mitosis produce?
- What does meiosis produce?
- Which organism is a producer in a food chain?
- A lack of vitamin C causes which disease?
- Which organ makes the hormone insulin?
- A heterozygous plant (Aa) is crossed with a homozygous recessive plant (aa). What fraction of the offspring is expected to be aa?
- A DNA strand reads TACGGT. What is the sequence of the complementary strand?
- A food chain starts with 10 000 kJ of energy in producers. Assuming 10 percent is passed on at each step, how much reaches the secondary consumers?
- Which idea did Charles Darwin propose to explain how species change?
- How many chambers does the human heart have?
- Why does aerobic respiration release far more energy from glucose than anaerobic respiration?
- Where does gas exchange take place in the lungs?
- What type of blood vessel carries blood away from the heart?
- Which part of the digestive system absorbs most nutrients?
- Which of these is a producer in a food chain?
- In a food chain 'grass → rabbit → fox', what is the rabbit?
- Which blood group is called the universal donor for red cells?
- What is the main function of the xylem?
- What is the main function of the phloem?
- Which of these is a correct food chain?
- A person has blood group AB. Which blood group can this person receive in an emergency, if the Rhesus factor matches?
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