1 Shivering is a response that helps to: A Cool the body down B Increase heat production in the body C Reduce blood glucose levels D Increase water loss
2 Which field of biology deals with the study of the immune system? A Pathology B Immunology C Pharmacology D Microbiology
3 Which of the following careers is related to the study of fish and other aquatic organisms? A Agriculture B Forestry C Fisheries D Horticulture
4 Which of the following is a similarity between mitosis and meiosis? A Both produce haploid cells B Both involve DNA replication C Both result in genetic variation D Both occur in germ cells
5 Which scientist proved that malaria is transmitted by mosquitoes? A Ronald Ross B Laveran C King D Pasteur
6 Which of the following is NOT a kingdom in the five-kingdom system? A Monera B Protista C Fungi D Archaea
7 In which organisms does lactic acid fermentation occur? A Yeast B Bacteria C Skeletal muscles D Plants
9 Which organelle is responsible for protein synthesis? A Lysosome B Ribosome C Golgi apparatus D Vacuole
10 Which artificial propagation method involves bending a branch to the ground and covering it with soil to encourage rooting? A Layering B Cutting C Grafting D Tissue culture
11 Which animal cell is specialized for carrying oxygen? A Muscle cell B Neuron C Red blood cell D Liver cell
13 What happens during metaphase? A Chromosomes align at the metaphase plate B Chromosomes move to opposite poles C Nuclear envelope reforms D DNA replicates
14 Which pigment is the main photosynthetic pigment? A Chlorophyll-a B Chlorophyll-b C Carotenoid D Xanthophyll
15 What is the main pigment that absorbs light for photosynthesis? A Chlorophyll-a B Chlorophyll-b C Carotenoids D Hemoglobin
16 In which organelle does aerobic respiration mainly occur? A Chloroplast B Ribosome C Mitochondrion D Golgi apparatus
17 What is homeostasis? A The process of cell division B The maintenance of a stable internal environment C The movement of molecules from high to low concentration D The breakdown of food by enzymes
18 What is the main significance of mitosis? A Production of gametes B Genetic diversity C Growth and repair D Reduction of chromosome number
19 Which of the following is an organ found in the shoot system of a plant? A Root B Leaf C Root hair D Root cap
20 The pressure flow hypothesis explains the transport of food in: A Xylem B Phloem C Cortex D Endodermis
21 Which part of the human brain controls balance and coordination? A Cerebrum B Cerebellum C Medulla D Hypothalamus
22 What is the function of the large central vacuole in plant cells? A To make proteins B To store water and maintain turgor pressure C To produce energy D To control cell division
23 Which of the following is an industrial application of enzymes in the food industry? A Use of amylase in bread making B Use of catalase in paper production C Use of lipase in detergents D Use of protease in DNA replication
24 In plant cells, what structure forms during cytokinesis? A Cleavage furrow B Phragmoplast C Cell plate D Spindle fibers
25 In tissue culture, what is the term for the mass of undifferentiated cells? A Callus B Explants C Seedling D Graft