2 Emma is learning about carbohydrates. She understands that carbohydrates are a source of energy. What is the main role of carbohydrates in the body? A To build muscles B To provide energy C To store genetic information D To catalyze reactions
4 Fatima is learning about protein deficiency. She understands that protein deficiency can lead to health problems. Which of the following is a result of severe protein deficiency? A Marasmus B Kwashiorkor C Both A and B D None of the above
5 Chloe is learning about a balanced diet. She knows that a balanced diet provides all the necessary nutrients. What does a balanced diet include? A Only proteins and carbohydrates B A mix of carbohydrates, proteins, lipids, vitamins, and minerals in appropriate amounts C Only fats and oils D Only fruits and vegetables
6 Nucleic acids are responsible for: A Energy production B Fat storage C Genetic information D Protein digestion
7 Mohamed is learning about nucleic acids. He understands that nucleic acids are involved in genetic information. Which of the following are the two types of nucleic acids? A DNA and RNA B ATP and ADP C Glucose and fructose D Starch and cellulose
9 Laura is studying lipids. She learns that lipids are a diverse group of hydrophobic molecules. Which of the following is a function of lipids in the body? A To store energy and form cell membranes B To catalyze reactions C To store genetic information D To provide quick energy
11 Hina is collecting data on the temperature of a reaction. She records the temperature every 30 seconds. What is the time interval between measurements called? A Sampling interval B Data range C Measurement precision D Calibration period
12 Xia is learning about the importance of vitamins and minerals. She understands that they are essential in small amounts. Which of the following is a source of vitamin C? A Oranges B Milk C Meat D Bread
13 Fatima is analyzing her data and calculates the mode. What does the mode represent? A The average of the data B The middle value of the data C The most frequently occurring value D The range of the data
14 Nora is recording the pH of a solution over time. She notices that the pH values are fluctuating. What should she do to improve the accuracy of her data? A Ignore the fluctuations B Take more readings and average them C Stop the experiment D Change the pH meter
15 Biochemistry is the study of: A Chemical reactions in industries B Chemicals present in living organisms C Atomic structure D Environmental pollution
17 Bar graphs are mainly used to compare: A Continuous data B Time-based data C Different categories D Trends
18 Which type of graph is best for showing proportions? A Line graph B Bar graph C Pie chart D Scatter plot
20 Omar is learning about RNA. He understands that RNA is involved in protein synthesis. What does RNA stand for? A Ribonucleic acid B Ribose nucleic acid C Red nucleic acid D Ribonucleotide acid
21 Ahmed is collecting data on the pH of different solutions. He uses a pH meter to measure the pH. What type of data is pH measurement? A Qualitative data B Quantitative continuous data C Quantitative discrete data D Ordinal data
22 The main function of carbohydrates is to: A Build tissues B Store genetic information C Provide energy D Form enzymes
23 Julia is learning about the basic components of food. She understands that nucleic acids are found in all living cells. Which food is a source of nucleic acids? A Meat B Fruit C Vegetables D All of the above
25 Mohamed is studying the required daily intake for young adults. He learns that young adults need an adequate amount of nutrients. Which of the following is needed for cell membrane function? A Lipids B Proteins C Carbohydrates D Nucleic acids