cellular processes core questions

Question 1

name the 7 life processes (MRS GREN)

Answer 1

Movement
respiration
sensitivity
growth
reproduction
excretion
nutrition

Question 2

what does the M mean in MRS GREN

Answer 2

organisms ability to move

Question 3

What does the first R mean in MRS GREN

Answer 3

an organisms ability to respire to make energy

Question 4

what does the S mean in MRS GREN

Answer 4

an organisms ability to feel

Question 5

what does the G mean in MRS GREN

Answer 5

an organisms ability to grow in mass and height

Question 6

what does the second R mean in MRS GREN

Answer 6

an organisms ability to reproduce

Question 7

what does the E mean in MRS GREN

Answer 7

an organisms ability to get rid of waste

Question 8

what does the N mean in MRS GREN

Answer 8

an organisms ability to get nutrients from food

Question 9

define organ

Answer 9

a group of tissues working together for specific functions

Question 10

define tissue

Answer 10

a group of cells working together for specific functions

Question 11

what is a cell

Answer 11

the simplest unit of living things

Question 12

state the 5 sub-cellular organelles in an animal cell

Answer 12

cell membrane
mitochondria
nucleus
cytoplasm
ribosomes

Question 13

state the 8 sub-cellular organelles in a plant cell

Answer 13

nucleus
cell wall
cell membrane
cytoplasm
mitochondria
ribosomes
chloroplasts
vacuole

Question 14

state the function of the nucleus

Answer 14

stores DNA and controls the functions of the cell

Question 15

state the function of the cell membrane

Answer 15

controls what enter and leaves the cell

Question 16

state the function of the cytoplasm

Answer 16

where chemical reactions take place

Question 17

state the function of the mitochondria

Answer 17

power house of the cellllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
where aerobic respiration takes place

Question 18

state the function of the chloroplast

Answer 18

absorbs light for photosynthesis

Question 19

state the function of red blood cells

Answer 19

to carry oxygen around the body

Question 20

state 3 adaptations of the root hair cell

Answer 20

large surface area
lots of mitochondria
large vacuole

Question 21

state the function of palisade celllllls

Answer 21

lots of chloroplasts for photosynthesis

Question 22

state the function of root hair cells

Answer 22

absorbs water and minerals from the soil

Question 23

reorder the following in size order:
organ cell tissues organelles organ system organisms

Answer 23

organelles
cells
tissues
organs
organ systems
organisms

Question 24

name 6 organ systems in the body

Answer 24

skeletal system
circulatory
nervous
muscular
respiratory
digestive

Question 25

what is respiration

Answer 25

a chemical reaction which uses glucose and oxygen to release energy

Question 26

give the unit for energy

Answer 26

joule (J)

Question 27

why are kilojoules used on food labels

Answer 27

a lot of energy is available from most foods

Question 28

what two structures change the pressure inside the chest cavity to ventilate lungs?

Answer 28

intercostal muscles and diaphragm

Question 29

what is the word equation for photosynthesis

Answer 29

water + carbon dioxide -> glucose + oxygen

Question 30

where does photosynthesis occur in the call

Answer 30

chloroplast

Question 31

what is photosynthesis

Answer 31

building glucose from carbon dioxide and water using light (used as food for the plant)

Question 32

name 3 things that can affect the rate of photosynthesis

Answer 32

carbon dioxide concentration temperature light density

Question 33

name 3 organs in plants

Answer 33

stem leaves roots

Question 34

what is respiration

Answer 34

a chemical reaction which uses glucose and oxygen to release energy

Question 35

give the equation for aerobic respiration

Answer 35

glucose + oxygen -> water + carbon dioxide + ENERGY

Question 36

why is it important for the lungs to have a rich blood supply

Answer 36

maintain a steep concentration gradient for efficient diffusion

Question 37

what is the name for respiration with oxygen

Answer 37

aerobic

Question 38

what is ventilation

Answer 38

breathing

Question 39

what are the tiny air sacks in the lungs called

Answer 39

alveoli

Question 40

where does respiration happen

Answer 40

mitochondria

Question 41

what is anaerobic respiration

Answer 41

respiration without oxygen

Question 42

what substance is produced in our muscles when we respire anaerobically

Answer 42

lactic acid

Question 42

which substances are produced when yeast respires anaerobically

Answer 42

ethanol (alcohol) and carbon dioxide

Question 43

name 6 main structures of the respiratory system

Answer 43

mouth nose trachea bronchioles bronchus alveoli

Question 44

state 3 ways lungs are adapted for gas exchange

Answer 44

thin walls good blood supply moist walls

Question 45

define diffusion

Answer 45

when particles move from a high concentration to a low concentration

Question 46

which gas diffuses from the alveoli (lungs) into the blood

Answer 46

oxygen

Question 47

which gas diffuses from the blood in to the alveoli (lungs)

Answer 47

carbon dioxide

Question 48

which chemical enables red blood cells to carry around oxygen in the body

Answer 48

haemoglobin

Question 49

what does exercise cause to increase

Answer 49

heart rate breathing rate tidal volume