B1 Socrative Corrections

Question 1

How many chromosomes make up 1 gene?

Answer 1

You have 46 chromosomes which make up 23 genes because

1 gene is made up f 1 gene

Question 2

How many chromosomes are there in a typical human body cell?

Answer 2

46

Question 3

What is an order of magnitude?

Answer 3

The amount of different zeros there are beteween 2 numbers

Eg cm ,mm,nm…

Question 4

How many orders of magnitude are there between 10cm and 100m

Answer 4

4 orders of magnitude

Question 5

How does a counter current flow of water around the blood and gills in fish, increasing the rate of gass exchange?

Answer 5

By maintaining a high concentration gradient

Question 6

What prosses does the glucose move from the intestine into the bloodstream?

Answer 6

Active transport

Question 7

What is the name of the prosses of which a prokaryotic cell reproduces?

Answer 7

Binary fission

Question 8

What is the first step of mitosis?

Answer 8

DNA replication

Question 9

What is the name of plant tishues made up of undifferentiated cells?

Answer 9

Meristem

Question 10

What is plasmid?

Answer 10

Small circular DNA

Question 11

Which structure in the gills of a fishincreases the surface area?

Answer 11

The lamellae

Question 12

What is 6 cm in nanometers

Answer 12

60,000,000

Question 13

What is 1cm in mm?

Answer 13

10mm

Question 14

What is 1mm in γm? (Micro meters)

Answer 14

1000mm

Question 15

What is 1 γm in nm (nano meters)

Answer 15

1000nm

Question 16

What is 6cm in nm?

Answer 16

60,000,000 nm

Question 17

What structure in the gills of a fish increase the surface area?

Answer 17

Lamellae

Question 18

What is the equasion to calcuate magnification?

Answer 18

Magnificaion = Length of image ÷ Actual length

I AM

Question 19

When growing bacteria in school, what temperature are microorganisms incubated at?

Answer 19

25*C