Living Organisms

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1. Which of the following sets of characteristics is exclusively found in living organisms and not in non-living matter?

   1. A Growth, movement, and respiration
   2. B Metabolism, reproduction, and response to stimuli
   3. C Feeding, excretion, and sensitivity
   4. D Reproduction, growth, and movement

2. A student observes a single-celled organism under a microscope and notes that it possesses a cell wall, chloroplasts, and a flagellum. Which of the following organisms is most likely being observed?

   1. A Euglena
   2. B Paramecium
   3. C Chlamydomonas
   4. D Hydra

3. Which of the following sequences correctly represents the increasing levels of biological organization from the simplest to the most complex?

   1. A Organism -> Organ -> Tissue -> Cell
   2. B Cell -> Tissue -> Organ -> Organism
   3. C Tissue -> Cell -> Organ -> Organism
   4. D Cell -> Organ -> Tissue -> Organism

4. A student is comparing the cellular structures of a leaf cell from a mango tree and a muscle cell from a human. Which of the following structures is present in the mango leaf cell but absent in the human muscle cell?

   1. A Mitochondria
   2. B Cell wall
   3. C Nucleus
   4. D Ribosomes

5. Which of the following sequences correctly represents the five levels of biological organization in ascending order of complexity?

   1. A Organism → Organ System → Organ → Tissue → Cell
   2. B Tissue → Cell → Organ → Organism → Organ System
   3. C Cell → Tissue → Organ → Organ System → Organism
   4. D Cell → Organ → Tissue → Organ System → Organism

6. Which of the following structures is found in both plant and animal cells, but performs a different primary function in each?

   1. A Cell wall
   2. B Central vacuole
   3. C Golgi apparatus
   4. D Chloroplast

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