Practice Questions 1 - General Biology PDF

PRACTICE QUESTIONS 1 GENERAL BIOLOGY Directions: Choose the letter of the correct answer. 1. Which of the following is shared by all cells? a. Plasma membrane b. Cytosol c. Ribosome d. All of the above 2. Instruments that allow us to see and view cells. a. Telescope b. Magnifying Glass c. Microsc...

PRACTICE QUESTIONS 1 GENERAL BIOLOGY Directions: Choose the letter of the correct answer. 1. Which of the following is shared by all cells? a. Plasma membrane b. Cytosol c. Ribosome d. All of the above 2. Instruments that allow us to see and view cells. a. Telescope b. Magnifying Glass c. Microscope d. Eye Glasses 3. This part of the nucleus acts as gates that control substances that enter or exit it. a. Nuclear Membrane b. Nucleoplasm c. Nucleolus d. Nuclear Pores 4. Which part of the eukaryotic cell performs protein synthesis? a. Smooth ER b. Rough ER c. Golgi Apparatus d. Mitochondria 5. Cell organelle that specifically breaks down fatty acids. a. Lysosome b. Peroxisome c. Centriole d. Ribosome 6. Which of the following are considered a cell type? a. Prokaryotic b. Eukaryotic c. All of the above d. None of the above 7. Which organelle is found in plant cells and absent in animal cells? a. Nucleus b. Chloroplast c. Cytoskeleton d. Centrosomes 8. The following organelles manufacture, distribute, or break down molecules except? a. Plasma Membrane b. Endoplasmic Reticulum c. Golgi apparatus d. Vacuole 9. This part of the prokaryotic cell is primarily used for locomotion. a. Nucleoid b. Pili c. Capsule d. Flagella 10. Which organelle in a eukaryotic cell can perform genetic control? a. Nucleus b. Cell Wall c. Mitochondria d. Lysosome 11. The cilia of Paramecium belong to which cytoskeletal fiber? a. Microtubules b. Intermediate Filaments c. Microfilaments d. None of the above 12. This cell junction type is also known as a “communicating junction”. a. Tight junction b. Anchoring junction c. Gap junction d. Plasmodesmata 13. A sticky substance between two plant cells that links them together. a. Pectin b. Lignin c. Cellulose d. Glycoprotein 14. This type of fiber that makes up the cytoskeleton is composed of tubulins. a. Microtubules b. Intermediate Filament c. Microfilament d. Extracellular matrix 15. What junction type is connected to the cytoplasm through intermediate filaments? a. Tight junction b. Anchoring junction c. Gap junction d. Plasmodesmata 16. This passive transport mechanism is a direct result of the innate thermal energy of molecules. a. Diffusion b. Osmosis c. Facilitated Diffusion d. None of the above 17. A type of active transport where cells are able to engulf small fluid particles. a. Exocytosis b. Phagocytosis c. Receptor-mediated endocytosis d. Pinocytosis 18. The process where animal cells shrivel due to an imbalance in solute concentrations refers to? a. Plasmolysis b. Crenation c. Turgidity d. Tonicity 19. This special type of passive transport is exhibited by water molecules on selectively permeable layers. a. Diffusion b. Osmosis c. Facilitated Diffusion d. None of the above 20. Which type of protein requires energy to push solutes against a concentration gradient? a. Aquaporins b. Channels c. Protein Pumps d. Carrier Proteins 21. The part of the cell cycle where chromosomes are duplicated is referred to as a. G1phase b. S phase c. G2phase d. Interphase 22. The structure that contains DNA and all proteins attached to it is called? a. Chromatin b. Sister chromatid c. Centromere d. Chromosome 23. Which of the following is a main stage of the cell cycle? a. G1 phase b. S phase c. G2 phase d. Mitotic phase 24. The mode of reproduction of some unicellular organisms where they form a new individual from the division of the original. a. Cell division b. Cell Cycle c. Binary fission d. Mitosis 25. The phase of the cell cycle where it becomes prepared for cell division a. G1 phase b. S phase c. G2 phase d. Mitotic phase 26. Structures on sister chromatids where mitotic spindle fibers attach and move them towards the center of the cell. a. Metaphase plate b. Cleavage furrow c. Cell plate d. Kinetochores 27. The chromosomes line up in the middle of the cell at what stage of mitosis? a. Prophase b. Metaphase c. Anaphase d. Telophase 28. This stage is characterized by the nuclear envelope dissolving and microtubules attached to the chromosomes. It can be considered distinct or part of another mitotic stage. a. Prophase b. Prometaphase c. Metaphase d. Anaphase 29. Cytokinesis in animal cells is marked by the appearance of which structure? a. Kinetochores b. Metaphase plate c. Cleavage furrow d. Cell plate 30. The sister chromatids are separated and are pulled opposite each other during which mitotic stage? a. Prophase b. Metaphase c. Anaphase d. Telophase 31. The sex chromosomes in humans are labeled what? a. X and Y b. 1 and 2 c. I and II d. M and F 32. The stage in meiosis where crossing-over takes place. a. Prophase I b. Metaphase I c. Anaphase I d. Telophase I 33. The egg and sperm cells only contain 23 sets of chromosomes; therefore, they are considered? a. Diploid b. Haploid c. Autosomes d. Somatic cells 34. When homologous chromosomes align gene by gene, which structure is formed? a. Gene b. Locus c. Tetrad d. Autosomes 35. Genes are located in which part of the chromosome? a. Autosome b. Tetrad c. Sister Chromosomes d. Locus ANSWER KEY: 1. D 2. C 3. D 4. B 5. B 6. C 7. B 8. A 9. D 10. A 11. C 12. C 13. A 14. A 15. B 16. A 17. D 18. B 19. B 20. C 21. B 22. A 23. D 24. C 25. C 26. D 27. B 28. B 29. C 30. C 31. A 32. A 33. B 34. C 35. D