FERTILIZATION

FERTILIZATION

VERÓNICA ÁLVAREZ

Multiple Choice

In what order does sperm travel through the female reproductive system?

• Vagina > Uterus > Cervix > Fallopian Tubes

• Vagina > Urethra > Cervix > Fallopian Tubes

• Cervix > Vagina > Uterus > Fallopian Tubes

• Vagina > Cervix > Uterus > Fallopian Tubes

• Vagina > Cervix > Urethra > Fallopian Tubes

Multiple Choice

Acidic environment of female reproductive system

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Choice

Muscular contractions of the uterus

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Choice

Fluid (semen) surrounding the sperm

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Choice

Cervix is open

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Choice

Cervical mucus

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Choice

Folds of cervix

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Choice

Female Immune cells

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Select

Which of the following cause sperm death on their journey to the egg?

• Acidic environment

• Female Immune Cells

• Trapped in cilia of fallopian tube

• Cervical Folds

• Traveling to empty fallopian tube

Multiple Choice

Wind-like current caused by the cilia

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Choice

Activation by chemicals in the female reproductive tract that changes sperm membrane

• Factor that HELP sperm get to the ovum

• Factor that PREVENT sperm get to the ovum

Multiple Choice

The female reproductive tract releases chemicals in the fallopian tube that changes the sperm membrane. How do sperm change as a result?

• They become hyperactive and swim faster and harder towards the end

• They die and lose the ability to swim towards the egg

• They become sluggish and swim slower and softer towards the end

• They become paralyzed and lose the ability to swim towards the egg

Multiple Choice

Activation of digestive enzymes in this structure allows sperm to burrow through the corona radiata.

• Acrosome

• Head

• Flagella

• Midpiece

Multiple Choice

How many sperm can fertilize a single egg?

• 2

• 1

Multiple Choice

What will happen to the first sperm that comes into contact with the egg membrane?

• Their membranes will fuse and the sperm is pulled inside the egg

• Their sperm's DNA will be sucked inside the cell while the rest of the sperm will fall off of the egg's surface

• Their sperm membrane will become glued to the outside of the egg and remain there

• Varies

Multiple Select

Why can't multiple sperm fertilize an egg?

• The egg produces chemicals that push other sperm away from the egg

• The zona pellucida hardens trapping sperm inside

• The egg cell membrane changes preventing sperm from attaching to it

• The zona pellucida hardens so no more sperm can enter

Multiple Choice

After the sperm has fused with the egg and entered, what events take place?

• The pronucleus of the male and female fuse completing the process of fertilization

• Cilia pull zygote towards infundibulum

• The pronucleus of the male and female separate completing the process of fertilization

• Cilia pull sperm towards infundibulum