Cell Structure
What is the function of the cell membrane?
To control the entry and exit of substances in and out of the cell.
Name two types of stem cells
adult and embryonic
Name the two stages of the cell cycle
interphase and cell division
list 3 types of cancer treatments
radiation, chemotherapy and surgery
Explain the functions of meoisis
allows for sexual reproduction and genetic variation
What is the green pigment in chloroplasts called?
Chlorophyll
Give an ethical issue for stem cell research
use of embryos
Part of the cell cycle when the cell doesn't divide
List 3 side effects of chemotherapy
hair loss, weight loss, skin rashes, fatigue,
Name the gametes in animal reproduction
Distinguish between prokaryotic and eukaryotic cells.
Porkaryotics don’t have a nucleus or membrane bound organells. Eukaryotes do have a nucleus and membrane bound organelles.
What can stem cells be used for
To help treat patients with diseases
Name the four stages of mitosis in order
Prophase, metaphase, anaphase and telophase
Define a tumour
when one or more cells lose the ability to control the rate of mitosis
How many chromosomes does each gamete have before fertilisation
23
Why is it important to add a drop of water to the plant cell when observing it under a microscope?
To prevent it from drying out.
List three examples of disorders/diseases that stem cells can treat.
alzheimers, parkinsons, leukaemia, diabetes, blood diseases
what are two functions of mitosis?
asexual reproduction, growth and repair of cells
Distinguish between benign and malignant tumours
benign are non life threatning
Malignant tumours are called cancers
How many chromosomes does the zygote have after fertilisation
46
In which order do you use objective lenses when observing cells?
4, 10, 40
Name 2 important characteristics of stem cells.
unspecialized and can be induced to become tissue or organ specific cells
Distinguish between haploid and diploid cells
Haploid - one set of chromosomes
Diploid - two sets of chromosomes
Why are cancer group of cells dangerous?
1. don't stop dividing
2. invade other tissues
3. spread to other body parts
list 3 different genetic variations offspring might have
eye colour, hair colour, height,