CELLS AND REPRODUCTION
What you should know.
WORDBANK
ACID
ANTHERS
ANTIBODIES
BACTERIA
CELL WALL
CELLS
CHARACTERISTICS
CHLOROPLASTS
CHROMOSOMES
COLOUR
CYTOPLASM
DISEASE
DNA
FERTILISATION
FUNCTIONS
FUSE
GAMETES
GROUP
INSECTS
MEMBRANE
MICROBES
MONTHS
MOTHER
NUCLEUS (X2)
OVARIES (X2)
OVIDUCT (X2)
OVULES
POLLEN
PROTECT
SIGNALS
SPERM (X2)
SPERM DUCT
STIGMA
STYLE
TAIL
TUBE
UMBILICAL
UTERUS
VACCINATIONS
VACUOLE
VAGINA
WALL
WHITE
WIND
1. All living organisms are made up of _________. All cells, both
plant and animal cells, contain a ___________, which controls cell
activities, a ____________ which controls the entry and exit of
materials, and ____________ where chemical reactions occur.
2. Plant cells also have _____________ for photosynthesis, a
_______ _________ for support and a ____________ filled
with fluid.
3. There are many different types of cells, all of which have
different ____________. A sperm cell has a ______ which allows
it to swim. A nerve cell is branched to allow it to send ________
around the body.
4. _____________ are tiny single celled organisms that can be seen
using a microscope. The type of microbe used to make yoghurt is
____________. Some microbes are harmful and can cause
____________. Our bodies can defend themselves against these
using saliva, skin, stomach ______, and _______ blood cells which
produce _______________ to fight the invaders.
5. ___________ give us a harmless version of the microbe, so that
we produce antibodies which stay in our system and __________
us from the disease.
6. Sex cells in plants and animals are also known as ________.
Flowers are the reproductive parts of a plant. __________
produce the male sex cells called _____________. The female
sex cells are called _________ and these are produced in the
__________. Petals attract _________ which will transfer the
pollen onto the __________, usually of another flower.
Sometimes pollen is carried by the _______. The pollen then
grows a pollen _________ which grows down the _________ and
into the ovary where fertilisation takes place. This is when the
male and female sex cells ________.
7. Human egg cells are produced in the ________ of females. The
egg cell then enters the ___________ or fallopian tube, and
travels towards the ___________.
8. __________ are produced in the testes. They leave the body
through the ________ ______ and the urethra, and during
sexual intercourse are deposited inside the female’s
____________. They then swim up through the uterus and into
the ___________ to find the egg cell. This is where fertilisation
occurs, when the nucleus of the __________ joins with the
__________ of the egg.
9. The fertilised egg divides many times before implanting in the
________ of the uterus for about nine __________. During this
time it develops into a human baby, with the help of nutrients and
oxygen it gets from the ___________ through the placenta
and_________________ cord.
10.
The nucleus of a cell contains ___________ which are made
of the chemical _____ which is tightly coiled up. Chromosomes
carry the genetic information of an organism. This genetic
information is passed on during ____________ of the egg and
sperm, and it controls all the ____________ of an organism. We
have inherited our eye ________, skin colour and blood ________
from our parents.