quiz

Question 1

what are the 6 signs of life

Answer 1

metabolism
responsiveness
movement
growth
differentiation
reproduction

Question 2

give 2 examples of physiological variables in the body which need to be kept within tight limits

Answer 2

core temp
water/electrolyte balance
ph body fluids - acid/alkaline balance
blood glucose levels
blood & tissue 02/c02 levels
blood pressure

Question 3

give ex of something regulated by a positive feedback mechanism

Answer 3

blood clotting
milk production
uterine contractions

Question 4

name the 4 body cavities

Answer 4

cranial
thoracic
abdominal
pelvic

Question 5

which body cavity would you find the urethra in

Answer 5

pelvis

Question 6

which body cavity would you find the bronchi in

Answer 6

thoracic

Question 7

which body cavity would you find the pancreas in

Answer 7

abdominal

Question 8

what do we call the family of cell stat don’t have a nucleus

Answer 8

prokaryoyae

Question 9

what do we call the basic watery fluid inside cells

Answer 9

cytosol

Question 10

describe the structure of a plasma membrane

Answer 10

phospholipid bi layer

protein markers

Question 11

what do plant cells have that humans do not

Answer 11

cell wall

Question 12

which human cell doesn’t have a nucleus

Answer 12

red blood cell

Question 13

how many pairs of chromosomes would you find in a human cell

Answer 13

23

Question 14

what is the job of the mitochondria

Answer 14

energy production

Question 15

what is the difference between rough and smooth endoplasmic reticulum

Answer 15

rough ER has ribosomes embedded in the surface

Question 16

what to lysosomes contain

Answer 16

digestive enzymes

Question 17

which cell organelle forms cilia and flagella

Answer 17

microtubules

Question 18

what are the names of the two methods of cell division?

Answer 18

mitosis

meiosis

Question 19

which type of cell stops being able to do mitosis once we are adults

Answer 19

nerve cell

Question 20

how many chromosomes in a diploid cell

Answer 20

46

Question 21

which form of cell division produces 2 identical daughter cells?

Answer 21

Mitosis

Question 22

Which form of cell division is used to make gametes?

Answer 22

Meiosis

Question 23

What is mutation?

Answer 23

change in the genetic code

Question 24

What are the two steps of protein synthesis called

Answer 24

transcription

translation

Question 25

Which form of transport across cell membranes requires ATP?

Answer 25

Active transport

Question 26

What is osmosis

Answer 26

movement of water down it's concentrated gradient

Question 27

what is the difference between diffusion and facilitated diffusion?

Answer 27

In facilitated diffusion the substance must pass through protein channels to get into the cell.

Question 28

give main functions of plasma membrane

Answer 28

border to cytoplasm transport of substances provides cell identity

Question 29

main function of nucleus

Answer 29

contains genetic info

Question 30

main function of ribosomes

Answer 30

synthesise proteins

Question 31

main function of mitochondria

Answer 31

produce energy (ATP) with Oxygen

Question 32

Number of daughter cells formed mitosis?

Answer 32

2 daughter cells

Question 33

number of daughter cells formed meiosis?

Answer 33

4 daughter cells

Question 34

number of chromosomes in daughter cell meiosis

Answer 34

23

Question 35

number of chromosomes in daughter cell mitosis

Answer 35

46

Question 36

recombination of genes mitosis?

Answer 36

no

Question 37

recombination of genes meiosis?

Answer 37

yes

Question 38

Which types of cell formed mitosis

Answer 38

somatic

Question 39

which type of cell formed meiosis?

Answer 39

gametes

Question 40

describe structure of plasma membrane and explain 2 main functions

Answer 40

phospholipid bilayer with membrane proteins contains cell contents and controls cellular traffic membrane proteins play a role in transport/immunological identity/act as receptors

Question 41

Process of Mitosis involves 2 divisions True/False

Answer 41

F

Question 42

After Mitosis each new cell is diploid True/false

Answer 42

T

Question 43

Meiosis creates 4 new identical body cells True/false

Answer 43

F

Question 44

At the end of Meiosis the cells contain 23 chromosomes True/false

Answer 44

T

Question 45

Mitosis results in a recombination of genes true/false

Answer 45

F

Question 46

one function of Lysosomes

Answer 46

Digests waste products

Question 47

one function of Smooth Endoplasmic Reticulum

Answer 47

Synthesises lipids

Question 48

one function of Ribosomes

Answer 48

one function of golgi apparatus

Question 49

One role of plasma membrane protein

Answer 49

assists in transport immunological identity act as receptors

Question 50

3 key parts of feedback loop/control system

Answer 50

detectors control centre effectors

Question 51

output reverses input - which feedback mechanism?

Answer 51

negative

Question 52

output reinforces input - which feedback mechanism/

Answer 52

posistive

Question 53

7 layers of bodily organisation (+ life force)

Answer 53

``` atoms/molecules cells tissues organs systens organism ```

Question 54

what separates the thoracic and abdominal cavity

Answer 54

diaphragm

Question 55

What is the function of the cell wall in plants?

Answer 55

controls turgidity

Question 56

Where is the DNA/RNA in prokaryotic cells?

Answer 56

dispersed throughout cytoplasm

Question 57

What membrane-bound organelles do prokaryotic cells have

Answer 57

none except ribosomes

Question 58

can prokaryotic cells be multi cellular?

Answer 58

No ALWAYS single-celled.

Question 59

what is the term for single celled organisms?

Answer 59

Unicellular organisms

Question 60

What are the 2 different layers of phospholipids in the bi-layer (cell membrane) known as/

Answer 60

hydrophobic | hydrophyllic

Question 61

what are the proteins in the bi-layer known as

Answer 61

trans-membrane proteins

Question 62

3 jobs trans-membrane proteins

Answer 62

immunological identity receptors for hormones etc transport proteins

Question 63

what is at the centre of the nucleus?

Answer 63

Nucleolus | spherical cluster DNA RNA