L.E.T. BIOLOGY REVIEWER # 1: Questions and Answers

Answer the following questions using a sheet of paper. The answer key is found at the bottom of the page. 

1. Which of the following is true regarding Interphase?
a. The longest phase of cell division.       c. The longest mitotic phase.
b. Chromatids separate in this phase.     d. The cell cytoplasm divides.

2. During Metaphase, mitosis chromosomes _______________
a. undergo coiling                                        c. break and disintegrate
b. line up at the equator                              d. undergo condensation

3. Which of the following is NOT associated with mitosis?
a. Growth in height                                      c. Healing of wounds                     
b. Growth of the fetus in the womb           d. Production of Sperm and Egg

4. How many mitotic divisions are needed for a single cell to make 128 cells?
a. 7                                                                  c. 28
b. 14                                                               d. 32

5. What do you call the science which deals with the structure and functions of tissue?
a. Cytology                                                    c. Histology
b. Pathology                                                  d. Microbiology

6. This is a type of epithelial tissue with columnar cells which appear to be arranged in more than one layer because they have been altered by pressure.
a. Simple Squamous                                   c. Stratified Squamous
b. Pseudo-stratified Epithelium                 d. Transitional Epithelium

7. This is a type of epithelial tissue with balloon-like cells subjected to contraction and stretching.
a. Simple Squamous                                   c. Stratified Squamous
b. Pseudo-stratified Epithelium                 d. Transitional Epithelium

8. What do you call the intercellular substance or matrix found in Cartilages?
a. Chondrin                                                   c. Osteocytes
b. Chondrocytes                                           d. Endosteum

9. The functional unit of the bone is called
a. Osteocytes                                                c. Haversian System
b. Canaliculi                                                 d. Periosteum

10. What do you call the membrane which surrounds the muscle tissues?
a. Myofibrils                                                   c. Sarcolemma
b. Fasciculi                                                    d. Epimysium

11. What do you call the long coiled tube of the human digestive tract where final digestion and absoprtion of food takes place?
a. Small Instestine                                       c. Large Intestine
b. Stomach                                                    d. Esophagus

12. Epithelial Tissues can be classified according to:
a. Number of Cell Layers                            c. A and B
b. Type of Cell Shapes                               d. None in the Options Provide

13. Which of the following does NOT belong to the group:
a. Ribosomes                                                c. Nucleolus
b. Centrioles                                                 d. Vacuoles

14. A cellular organelle whose primary function is to synthesize proteins:
a. Centrosomes                                            c. Ribosomes
b. Endoplasmic Reticulum                         d. Vacuoles

15. Classification of animals with simple stomach.
a. Monogastric                                              c. Ruminants
b. Monogastrick                                            d. Rumenants

16. The layer of the epidermis in which chromatophores in amphibians are located.
a. Stratum Corneum                                    c. Stratum Germinativum
b. Stratum Laxum                                         d. Stratum Laxum

17. The Dermis of the human skin is important for the following functions, except:
a. Sensation                                                 c. Transpiration
b. Protection                                                  d. Thermoregulation

18. All muscles share the following prefixes, except:
a. Myo -                                                          c. Mayo -
b. Mys -                                                          d. Sarco -

19. The following are the characteristics of Cardiac Muscle, except:
a. Unstriated                                                 c. Involuntary
b. Intercalated discs are present               d. Found only in the heart

20. Exoskeleton of Arthropods, such as insects, spiders and crustaceans, contains mainly of ______
a. Calcium Carbonate                                 c. Magnesium
b. Chitin                                                         d. Iron


21. A type of skeleton which consists of fluid held under pressure in a closed body compartment.

a. Endoskeleton                                           c. Exoskeleton
b. Hydroskeleton                                          d. Hydoskeleton

22. Temporary storage of human urine.
a. Urinary Blader                                          c. Urinary Bladder
b. Urinarry Blader                                         d. Urinenary Bladder

23. The filtering units of the kidney is called __________.
a. Neprons                                                    c. Nephrons
b. Nephroons                                                d. Nephrrons

24. It is a nitrogenous waste produced in the liver from the breakdown of proteins. It is the main component of urine.
a. Uric Acid                                                    c. Urea
b. Creatinine                                                 d. Urine

25. It is a waste product of the body produced from the breakdown of DNA or RNA.
a. Uric Acid                                                    c. Urea
b. Creatinine                                                 d. Urine

26. It is a waste product of the body produced from muscle action.
a. Uric Acid                                                    c. Urea
b. Creatinine                                                 d. Urine

27. It encases the glomerulus of the kidney.
a. Loop of Henle                                         c. Bowman’s Capsule
b. Collecting duct                                         d. Medulla

28. It reduces the volume of urine by reabsorbing water.
a. Loop of Henle                                         c. Bowman’s Capsule
b. Collecting duct                                         d. Medulla

29. Which of the following does not belong to the group:
a. External Nose                                          c. Pharynx
b. Nasal Cavity                                             d. Larynx

30. Which of the following does not belong to the group:
a. Lungs                                                        c. Nose
b. Larynx                                                        d. Bronchi

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