B1/b2 Flashcards
1
Q
Difference between Prokaryotic and Eukaryotic cells
A
Pro- DNA in plasmids
Eu- DNA in nucleus
2
Q
Adaptations of nerve cell (2)
A
Long axon impulse to one another using chemicals, lots of dendrites
3
Q
2 aspects of sieve plates
A
allow food and water to pass
kept alive by companion cells
4
Q
What are xylem walls made for and why is it good
A
Lignin, strong
5
Q
Copy cells for? (3)
A
Growth, repair, reproduction
5
Q
1.What happens in replication? (1)
A
organelles and chromosomes copied
6
Q
- What happens in mitosis?(2)
A
Contents rearranged, chromosomes pulled to each end.
7
Q
What does the embryo have in therapeutic cloning?
A
same genes as patient
8
Q
What is a hypertonic solution
A
solution with higher concentration of solutes than cell
9
Q
What is the name for plant cells when they receive too much water so the plant wilts?
A
flaccid
