Questions

Question 1

what equation is used to find the magnification?

Answer 1

mag = image size / real size

Question 2

what equation is used to find the real size?

Answer 2

real size = image size / magnification

Question 3

what equation is used to find the image size?

Answer 3

image size = mag x real size

Question 4

Where are embryonic stem cells found?

Answer 4

in embryos

Question 5

what are embryonic stem cells?

Answer 5

pluripotent

Question 6

where are adult stem cells located?

Answer 6

bone marrow, brain and muscle tissue

Question 7

what are adult cells?

Answer 7

multipotent

Question 8

what are the pros of of producing cloned plants from stem cells?

Answer 8

1. can help illnesses and medical conditions

2. the embryos are spare form IVF so they would be destroyed anyways.

Question 9

what are the cons of producing cloned plants form stem cells?

Answer 9

1. embryos can become babies
2. virus in the cell can be passed on
3. It is very expensive so it could be used on better things
4. Religious/Ethical issues

Question 10

what are the growing areas of a plant called?

Answer 10

Meristems

Question 11

why are stem cells cloned?

Answer 11

1. Another plant life
2. Endangered plants can be reproduced
3. Grow more food

Question 12

what other places can stem cells be retrieved?

Answer 12

fat, blood and umbilical cord

Question 13

what is ONE medical condition that can be treated by stem cells?

Answer 13

diabetes

Question 14

what do cells need to be alive?

Answer 14

oxygen, glucose and water

Question 15

Oxygen and Glucose goes…

Answer 15

IN

Question 16

Carbon Dioxide goes…

Answer 16

OUT

Question 17

Oxygen =

Answer 17

blood

Question 18

Carbon Dioxide = Blood =

Answer 18

lungs

Question 19

Glucose = small intestine =

Answer 19

blood

Question 20

Where does active transport occur?

Answer 20

• Inside the gut for animals

- Root hair cells for plants

Question 21

why do plants need mineral ions?

Answer 21

for healthy growth

Question 22

TWO ways in which active transport differs from diffusion?

Answer 22

1. Active transport is from a low to high concentration area wether diffusion is from a high to low area of concentration.
2. Active Transport uses energy.

Question 23

what do specialised exchange surfaces do?

Answer 23

A specialised exchange surface gives a greater area, so more oxygen can be absorbed and more carbon dioxide can be removed.

Question 24

if there is a high surface area, will it be easier for stuff to move between an organism and its environment?

Answer 24

Yes