reproductive system. Flashcards
what is the function of the nucleus?
it controls the cell and contains genetic information (DNA
what is the function of the cell membrane?
it controls what enters and leaves the cell
what is the function of the cytoplasm?
chemical reactions happen in the cell
what is the function of the mitochondria?
produces aerobic respiration and is the powerhouse for the cell
what is the function of the cell wall?
it keeps the structure of the cell
what is the function of the chloroplast?
it contains chlorophyll which starts the process of photosynthesis.
what is the function of the vacuole?
it has all the nutrients for the cell contains cell sap
what is the function of the chromisomal DNA?
its like the nucleus
what is the function of the plasmid?
contains genetic information and causes variation in prokaryotic cells only normally has antibiotic resistance.
what is the function of the flagella
it helps to move around
what is the function of the cytoplasm?
causes chemical reactions
what is the function of the cell wall?
it keeps the structure of the cell
what changes do boys go through during puberty?
their voice deepens
the body becomes more muscular
voice breaks
testes start to produce sperm cells
what changes do girls go through during puberty?
breasts develop
hips get wider
menstruation
ovaries start to produce eggs
what changes do both girls and boys go through during puberty?
grow taller
Pubic hair grows on face and body
sexual organs start to grow and develop
what is a unicellular cell?
an organism that has only one cell.
what is a multicellular cell?
an organism that has many cells/more than one cell
what is a hormone?
hormones are chemical substances that are produced in our bodies that act as a messenger, communicating between our different cells and organs
what are the female sex hormones called?
oestrogen and progesteron
what is the male sex hormone called?
testosterone.
when does puberty start for the genders?
girls - 8-14
boys - 12-15 (not all people start from these ages)
what is menopause?
when you hit the stage where you have no eggs left to make a child
the female reproductive system =
fallopian tube, ovaries, uterus, cervix, vagina
the male reproductive system =
bladder, rectum, prostate gland, penis, urethra, scrotum, testes, sperm duct
