2024 semester 1 exam

Question 1

What does the M in mrsgren stand for

Answer 1

Movement

Question 2

What does the R in mrsgren stand for

Answer 2

Respiration

Question 3

What does the S in mrsgren stand for

Answer 3

sensitiveity

Question 4

What does the G in mrsgren stand for

Answer 4

Grow

Question 5

What does the R in mrsgren stand for

Answer 5

Reproduction

Question 6

What does the E in mrsgren stand for

Answer 6

Excreat

Question 7

What does the N in mrsgren stand for

Answer 7

Nutrients

Question 8

What does the term fossil fuel mean

Answer 8

Decomposing of flora and forna from the carnivourus period

Question 9

What is diffusion

Answer 9

The process of particals moving from high concentration to low concentration

Question 10

What are the similaties between animal and plant cells

Answer 10

Similarties:
A membrane-bound nucleus, which contains the DNA.
A plasma membrane or cell membrane.
Cytoplasm in which other organelles are suspended.
Nucleolus.
Endoplasmic reticulum (ER)
Ribosomes.
Mitochondrion.
Golgi bodies or Golgi apparatus.
eukaryotic cells

Question 11

What are the diffrences between animal and plant cells

Answer 11

Animal cells have centrioles, centrosomes (discussed under the cytoskeleton), and lysosomes, whereas plant cells do not.
Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.

Question 12

What type of cell doesnt conatin a nucleus

Answer 12

Prokaryoties, red blood cells

Question 13

Function of cell membrane

Answer 13

multilayered permibale barrier that hold the organells inside the cell.

Question 14

Function of cytoplasm

Answer 14

the liquid inside the cell holding the orgaelle in place. Also glueing one molecule to another

Question 15

function of vacuole

Answer 15

membrane bound cell organelle that is generally small and helps hide away waste products

Question 16

function of chloroplasts

Answer 16

provides plants energy via photo synthesis

Question 17

photosynthesis equation

Answer 17

light
carbon dioxide+water=glucose+oxygen

Question 18

function of mitochondria

Answer 18

double membrane bound organelle that is the powerhouse of the cell. converts food into energy via respiration

Question 19

respiration equation

Answer 19

glucose+oxygen=carbon dioxide+water+energy

Question 20

independant varible

Answer 20

what changes

Question 21

dependant varible

Answer 21

what is mesaured

Question 22

function of the nucleus

Answer 22

double membrane organelle that stores DNA tightly woven arund ground protein

Question 23

Function of the nucleolus

Answer 23

non membraned dense bundle of DNA and RNA producing and assembling the cells ribosomes

Question 24

What is DNA

Answer 24

a molecule that contains the genetic code that is unique to every individual.

Question 25

What is RNA

Answer 25

One of two types of nucleic acid made by cells

Question 26

Rough endoplasmic reticulum function

Answer 26

large membraneous organelle capabel of producing folding and disbuting and qaulity of proetin

Question 27

nucleare membrane function

Answer 27

acts as a barrier that seperates the nucleus DNA from the cytoplasm. it is made from phospholid bilayers

Question 28

Smooth endoplasmic reticulum function

Answer 28

large membrane organelle which lacks ribosomes. helps with metabolism steriod and hormone control

Question 29

why are seasons repeting each year

Answer 29

becuase the earth spinning on its axis

Question 30

how often does the earth rotate

Answer 30

every 24 hours

Question 31

how often does the earth rotae around the sun

Answer 31

every 365 days and a quater made up on febuary 29

Question 32

what causes the eartg seasons

Answer 32

axis

Question 33

what causes day and night

Answer 33

orbit around the sun with tilt

Question 34

how much is the eart tilted

Answer 34

23.5 degrees

Question 35

1st phases of the moon

Answer 35

new moon

Question 36

2nd phases of the moon

Answer 36

cresent moon

Question 37

3rd phases of the moon

Answer 37

3rd quater

Question 38

4th phases of the moon

Answer 38

gibbous

Question 39

5th phases of the moon

Answer 39

full

Question 40

6th phases of the moon

Answer 40

gibbous

Question 41

7th phases of the moon

Answer 41

1st quater

Question 42

8th phases of the moon

Answer 42

cresent

Question 43

True or Flase It is summer in the northen hempishere when the sun is tilted towards it

Answer 43

true

Question 44

Solar eclipse verse lunar elecipse

Answer 44

a solar eclispe is where the moon blocks the sun and a lunar eclispse is where the erth blocks the sun

Question 45

what does a graph need

Answer 45

tiltle, axis tilte, x and y, even numbers spacing, start at zero.