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Human Biology: Practice Test Unit I

Orientation to the Human Body

Test your knowledge!

Click on a circle with your mouse. Scroll down for the next question.

              

             

1. Which of the following is a function of the Integumentary system? 

   

secretes salts and urea in perspiration

   

waterproofs body and protects deeper tissue from injury

   

sensory receptors in skin

   

all of the above

 

             

2. The circulatory system is composed of the ___________ and the ____________ systems.

   

respiratory, circulatory

   

cardiovascular, respiratory

   

lymphatic, respiratory

   

cardiovascular, lymphatic

 

              

3. Which of the following is not a function of the skeletal system?

   

storehouse of minerals

   

largest organ of the body

   

produces blood

   

supports the body

 

              

4. which of the following is the correct sequence in the Level of Structural Organization?

   

atoms-cells-tissues-organs-organ systems-organism

   

atoms-tissues-cells-organs-organ systems-organism

   

cells-atoms-tissues-organs-organ systems-organism

   

organism-organs system-organs-tissues-cells-atoms

 

              

5.  The endocrine system controls the human body by producing _____________ and releasing them into the blood stream. 

   

contractions

   

electrical impulses

   

hormones

   

glucose

           

               

6. Which of the following are functions of the Urinary system? 

   

regulates acid-base balance of the blood

   

support the body

   

maintains salt balance

   

both a and c

 

              

7. To avoid confusion when discussing anatomical position, it is always assumed that the body is in a standard position.  Which answer best describes this standard position?

   

face-front with feet together and arms hanging at the sides with palms facing forward

   

sideways position with feet apart, arms hanging at the side with palms facing forward

   

face-front with feet apart and arms hanging at the sides with palms facing forward

   

sideways position with feet together, arms hanging at the side with palms facing forward

 

              

8. Which of the following best describes what a frontal plane is?

   

cut made lengthwise, or longitudinal, dividing body into right and left halfs

   

horizontal cut making anterior and posterior parts

   

cut making anterior and posterior parts

   

horizontal cut making superior and inferior parts

 

             

 9. This organelle is considered to be the cell's "post office."

   

vacuole

   

nucleus

   

endoplasmic reticulum

   

golgi bodies

 

               

10. Which of the following scientists were not considered directly responsible for developing the Cell Theory?

   

Robert Hooke

   

Rudolf Virchow

   

Matthias Schleiden

   

Theodor Schwann

             

            

11. Which of the following scientists is credited with naming cells? 

   

Anton van Leeuwenhoek

   

Aristotle

   

Robert Hooke

   

Watson

 

             

12. This cell organelle is responsible for producing energy for the cell?

   

ribosomes

   

vacuole

   

nucleus

   

mitochondria

 

             

 13. Which of the following is not part of the Cell Theory?

   

cells are the basic unit of structure and function in living things 

   

atoms are the basic unit of structure and function in living things

   

all cells come from preexisting cells

   

all living things are composed of cells

 

              

14. The movement of molecules from areas of high concentration to areas of low concentration is called _____________.

   

diffusion

   

active transport

   

cell movement

   

none of the above

 

             

 15. Most of the life of any cell is spent in a period of cell growth and development called ____________.

   

metaphase

   

prophase

   

interphase

   

telophase

           

               

16. This cell organelle directs all the activities of the cell.

   

nucleus

   

ribosome

   

cytoplasm

   

golgi bodies

 

             

 17. ____________ is a process that gives off energy without using oxygen.

   

equilibrium

   

metabolization

   

respiration

   

fermentation

 

             

 18. An organism that obtains energy directly from the sun is considered to be a __________.

   

provider

   

producer

   

consumer

   

all of the above

 

              

19. If movement of materials across the cell membrane requires energy it is called _____________.

   

osmosis

   

active transport

   

diffusion

   

none of these

 

              

 20. Movement of large particles into the cell across the cell membrane by active transport is called __________.

   

exocytosis

   

osmosis

   

passive transport

   

endocytosis

 

 21. Human gametes have ___________ individual chromosomes. 

   

13

   

33

   

46

   

23

 

             

22. Proteins are made up of units of ____________ linked together in a specific order.

   

centrioles

   

centromeres

   

cytoplasm

   

amino acids

 

              

23. All of the following are composed of body cells except _____________.

   

bone

   

sperm

   

liver

   

kidney

 

              

24. The number of chromosomes in a gamete of an organism is its ____________ number

   

haploid

   

diploid

   

tRNA

   

rRNA

 

              

25.  The joining of egg and sperm during fertilization produces a ____________.

   

gamete

   

unfertilized egg

   

zygote

   

mitotic cell

           

               

26. The process by which DNA makes a 'carbon copy' of itself is called ____________.

   

reproduction

   

transcription

   

translation

   

replication 

 

              

27. The code for making proteins is carried to the ribosomes by _______________.

   

RNA

   

DNA

   

cytosine

   

thymine

 

              

28. Replication occurs in the ___________.

   

ribosomes

   

cytoplasm

   

nucleus

   

golgi body

 

             

 29. Transcription occurs in the ___________.

   

ribosome

   

cytoplasm

   

golgi body

   

nucleus

 

               

30. A small section of the DNA molecule that contains information controlling traits is called a ___________.

   

gene

   

protein

   

zygote

   

amino acid

             

            

31. mRNA is made in the nucleus in a process called ___________. 

   

replication

   

translation

   

transcription

   

reproduction

 

             

32. During replication, the DNA molecules that are formed are _____________.

   

similar

   

completely different

   

almost the same

   

identical

 

             

33. Protein building blocks (amino acids) are brought to the ribosomes by __________.

   

rRNA 

   

tRNA

   

mRNA

   

DNA

 

              

34. The process of translation occurs in the _____________.

   

cytoplasm

   

nucleus

   

cell membrane

   

mitochondria

 

             

 35. In sexual reproduction, a new organism is produced when _________.

   

cells divide by mitosis

   

an organism divides into two equal parts

   

sex cells from two parents combine

   

a new oranism grows from the body of its parents

           

               

36. An example of an organic compound is ___________.

   

C6H12O6

   

CO2

   

H2O

   

all of these

 

             

 37. ____________ is an example of a carbohydrate.

   

cellulose

glucose

   

starch

   

all of these

 

             

 38. ___________ occurs when molecules are evenly distributed.

   

metabolism

   

equilibrium

   

fermentation

   

none of these

 

              

39. meiosis produces __________.

   

a zygote

   

gametes

   

cells with the diploid chromosome number

   

cells with identical chromosomes

 

              

 40. Mutations affect ________________.

   

genes

   

chromosomes

   

traits

   

all of the above


 

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