1. Cells

Question 1

Human STEM cells may come from

Answer 1

Human STEM cells can come from … Embryos … Bone Marrow

Question 2

Human STEM CELLS can be used to treat:

Answer 2

STEM CELLS can be used to treat

Paralysis

Question 3

What are the main differences between animal and plants cells?

Answer 3

The differences between animal and PLANT CELLS:

Plants have CHLOROPHYLL + CELL WALL + Permanent Vacuole

Question 4

What microscope do you use if you want to look at a dead sample?

Answer 4

SCANNING ELECTRON MICROSCOPE if looking at dead samples

Living cells are looked at by a light microscope

Question 5

What are Ribosomes?

Answer 5

Ribosomes are TINY & are where PROTEIN SYNTHESIS occurs

See them using an electron microscope

Question 6

What are MITOCHONDRIA?

Answer 6

MITOCHONDRIA are:

. Found in ANIMAL CELLS and contain the ENZYMES for RESPIRATION

. Where most of ENERGY is released during RESPIRATION

Question 7

What are EUKARYOTIC CELLS?

Answer 7

EUKARYOTIC CELLS

. Can be ANIMAL or PLANT

. Both have GENETIC MATERIAL (DNA) enclosed in a NUCLEUS

Question 8

PROKARYOTIC CELLS

Answer 8

Prokaryotic Cells

. Found in BATERIAL
. The genetic material (DNA) is NOT enclosed in a nucleus
. They are much smaller than Eukaryotic
. No nucleus - single strand of DNA

Question 9

What is MITOSIS?

Answer 9

Mitosis is CELL DIVISION producing TWO IDENTICAL CELLS

Question 10

CELLULOSE

Answer 10

CELLULOSE

• The main substance found in PLANT CELL WALLS
• Cellulose - HELPS the PLANT to remain STIFF & STRONG