SNC 1D1

UNIT ONE TEST

 

 

PART A: Multiple choice

Use the scantron sheets provided and bubble in the correct answer in the space provided.(15)

 

1. When focusing under high power always

 

a. place the specimen upside down

b. place the specimen in the centre of the field of view

c. place the specimen on the edge of the field of view

d. use the coarse adjustment knob

 

2. The part of the microscope that controls the amount of light going through the specimen is the

 

a. light source

b. eyepiece

c. revolving nosepiece

d. diaphragm

 

3. The function of the Golgi bodies is to:

 

a. store DNA

b. make sugar

c. package and store proteins

d. digest and recycle cell wastes

 

4. Structures present in plant cells but absent from animal cells include

 

a. the chloroplasts and the cell wall

b. the mitochondra and the large central vacuole

c. Golgi bodies and ribosomes

d. cell membrane and endoplasmic reticulum

5. What is the stage of mitosis represented in the diagram to the side.

 

a. prophase     

b. metaphase

c. anaphase          

d. telophase

 

6. How does cell division differ between plant and animal cells?

 

a. Plant cells do not have centrioles
b. Animal cells and plant cells pinch in the middle during cytokenisis.
c. Animal cells form a cell plate.
d. Animal cells do not have centioles.

 

 

 

 

 

 

 

7. Mitosis is a form of asexual reproduction that ensures

 

a. the daughter cells have ½ the number of chromosomes of the parent cell
b. the daughter cells have the same number of chromosomes as the parent cell
c. have 2x the number of chromosomes as the parent cell
d. have varying numbers of chromosomes

 

8. Which cell process is used to ensure the gametes have ½ the number of chromosomes of the parent cell?

 

a. mitosis

b. cytokenisis

c. replication

d. meiosis

 

9. In humans, gametes join during ________ to form a diploid zygote.

 

a. mitosis

b. meiosis

c. fertilization

d. crossover

 

10. Sexual reproduction is believed to have evolved as a way of

 

a. ensuring variability in the genetic material found in the nucleus

b. repairing damaged chromosomes

c. increasing the rate of cell growth

d. producing individuals that are genetically similar

 

 

Using the flower diagram to the right answer the questions below 

 

11. The part of the flower labeled 5 is the

 

a. stigma

b. style

c. anther

d. pistil

 

12. the stamen is represented by the numbers

 

a. 5 and 6

b. 7 and 8

c. 3 and 4

d. 1 and 2

 

13. The seeds are a result of the fertilization of

 

a. 5

b. 6

c. 7

d. 8

 

 

 

14. FSH is a hormone secreted by the pituitary gland at the onset of

 

a. puberty

b. fertilization

c. birth

d. meiosis

 

15. The correct pathway of the sperm is from the

 

a. testes to the vas deferens to the epididymis

b. epididymis to the urethra to the vas deferens

c. testes to the epididymis to the vas deferens

d. urethra to the vas deferens to the testes

 

 

PART B: Fill in the blank

Use the appropriate word or phrase to complete the statement. Place the word or phrase in the space provided.(10)

 

1. The process of __________________________________ produces gametes in both female and male organisms.

 

2. During prophase of meiosis I, the homologous chromosomes exchange genetic material by a process

 

called _______________________________________.

 

3. Male gonads are called _______________________________________________.

 

4. _________________________________ are substances that act like messengers in the human body.

 

5. The _________________________________ gland and the ____________________________________

 

secrete fluids that are rich in sugars and provide energy for the sperm to swim.

 

6. At ____________________________________ the ovary releases an egg from a follicle.

 

7. The egg  or ovum is swept into the ___________________________________ by the movement of cilia.

 

8. _________________________________ can develop in to new plants without being fertilized.

 

9. The method that microscopic organisms such as amoeba and bacteria reproduce is called

 

________________________________________________.

 

 

 

 

 

 

 

 

 

 

 

PART C: Matching columns

 

Match the term in column A with the correct definition in column B

 

Column A

Column B

_____1. zygote

 

_____2. meiosis

 

_____3. fertilization

 

_____4. prophase I

 

_____5. anther

 

_____6. ovules

 

_____7. testosterone

 

_____8. seminiferous tubules

 

_____9. uterus

 

_____10. fragmentation

 

_____11. external fertilization

 

_____12.cytokinesis

 

_____13. lysosomes

 

_____14. chloroplasts

 

_____15. ocular
  1. new organism arises from a part that breaks off the parent

 

  1. organelles found in the cell that known as “suicide sacs”

 

  1.  hormone which begins the expression of secondary sexual characteristics in males

 

  1. the eyepiece of the microscope

 

  1. crossover occurs

 

  1. the cell that results from the union of a sperm cell and an egg cell

 

  1. organelles found in plant cells that contain the green pigment, chlorophyll

 

  1. part of cell division in which the cytoplasm and its contents separate into equal parts

 

  1. process used to ensure gametes are haploid

 

  1. pollen produced on these flower parts

 

  1. process in which the male gametes are united with the female gametes outside the females body

 

  1. union of a sperm and egg

 

  1. area of the testis where the sperm are produced

 

  1. the organ in the female reproductive system where the embryo is nourished as it grows

 

  1. part of a flower that develops into seeds when they are fertilized

 

 

 

 

 

 

 

 

 

 

 

 

PART D: Labeling Diagrams

Label the indicated parts of the diagrams below. Place your answers in the space provides.

 

 

A. CELL (9)

     1._____________________________________

 

     2._____________________________________
 
     3._____________________________________
 

     4._____________________________________

 

     5._____________________________________

 

     6._____________________________________

 

     7._____________________________________

 

     8. Is this a plant or animal cell?_____________

 

9. Provide one piece of evidence to back up your   answer in #8._____________________________

 

 

B. SPERM CELL (5)

                                                                                              1._______________________

 

                                                                                              2. ______________________

 

                                                                                              3._______________________

 

                                                                                              4. What is the function of

                                                                                                structure 3?______________

                                                                                                ________________________

 

                                                                                              5. What is another name for

                                                                                               structure 3?_______________

 

 

 

 

 

 

[Illustration]C. FEMALE REPRODUCTIVE SYSTEM (6)

1.                1._____________________

                       2.________________________

  

2.                   3.________________________

                  

                     4.________________________

 

                    5.________________________

 

3.                6.________________________

 

 

4.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PART E: Short answer

                                                                                                   

 

 

 

 

 

 

 

 

 

 

 

 

           

 

1. Use the diagram above to answer the following questions.

 

a. At the end of the 1st cell division of meiosis how many cells are produced?(1)

 

 

b. What is the difference between the chromosomes found in prophase 1 and those found in the cell in telophase 1? (2)

 

 

 

 

 

 

c. Telophase 2 is the end of the 2nd cell division of meiosis, what differences do you note in the chromosomal structure between telophase 2 and telophase 1. (2)

 

 

 

 

 

d. During what phase do the sister chromatids of a double stranded chromosome separate?(1)

 

 

 

 

e. At what stage will a diploid number of chromosomes exist? (1)’

 

 

 

 

2. Using human cells as an example, explain what homologous chromosomes are.(2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Trace the path of sperm from their origin in the testis to their passage through the urethra. State clearly the different organs in the male reproductive system that the sperm travel through and state what organs produce fluid to help maintain the sperm alive. (6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Choice one method of asexual reproduction and briefly describe its process. What is the genetic make up of the offspring compared to the parent. Explain! (4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. Read the article provided. Then answer the questions in the space below. (5)