Organisation of the organism

Question 1

what is the difference between plant cell and animal cells?

Answer 1

-cell walls in plants not in animal cells
-they both have cell membrane
-both have nucleus
-both have cytoplasm
-chloroplasts only present in plant cells
-ribosomes found in both
-mitochondria found in both for respiration
-vacuoles found in both

Question 2

Describe the structure of a bacterial cell

Answer 2

cell wall, cell membrane, cytoplasm,
ribosomes, circular DNA, plasmids

Question 3

state the function of cell wall

Answer 3

-protects and supports cell
allows oxygen and water to pass through

Question 4

state the function of cell membrane

Answer 4

controls what goes in and out of the cell

Question 5

state the function of the nucleus

Answer 5

contains genetic material and controls cell activities

Question 6

state the function of cytoplasm

Answer 6

home to cell’s organelles

Question 7

state the function mitchondria

Answer 7

breaks down sugar molecules to create energy for respiration

Question 8

state the function of ribosomes

Answer 8

produces proteins

Question 9

state the function of chloroplasts

Answer 9

captures energy as form of sunlight and uses it to produce food for cells

Question 10

state the functions of vacuoles

Answer 10

storage area for cells

Question 11

How are new cells produced?

Answer 11

by division of existing cells

Question 12

What is the function of ciliated cells?

Answer 12

movement of mucus in the
trachea and bronchi

Question 13

What is the function of root hair cells?

Answer 13

absorbation

Question 14

What is the function of red blood cells?

Answer 14

transport of oxygen

Question 15

What is the function of palyside mesophyll cells?

Answer 15

Photosynthesis

Question 16

What is the function of neurones?

Answer 16

conductal of electrical impulses

Question 17

Function of sperm and egg cells?

Answer 17

reproduction

Question 18

Define a cell

Answer 18

basic functional and structural units in a living organism

Question 19

Define a tissue

Answer 19

group of cells of similar structure working together to perform the same function

Question 20

Define an organ

Answer 20

made from different tissues working together to perform a specific function

Question 21

Define an organ system

Answer 21

group of organs with related functions, working together to perform body functions

Question 22

define an organism

Answer 22

different organ systems work group together to form an organism

Question 23

What is the formula of magnification?

Answer 23

= image size ÷ actual size

Question 24

how to convert a milimeter into micrometer?

Answer 24

1mm is 1000 micrometer so x1000

Question 25

state 3 organelles only found in plant cells

Answer 25

cellulose in cell walls chloroplasts permanent vacuole

Question 26

function of permanent vacuole in plants

Answer 26

supports cell and contains cell sap

Question 27

what tissues make up a plant leaf?

Answer 27

mesophyll tissue(spongy mesophyll and palisade mesophyll) epidermis(upper and lower) veins(xylem and phloem)

Question 28

What organs make up the circulatory system?

Answer 28

blood vessels heart lungs

Question 29

what type of tisue is the heart made up of

Answer 29

cardiac muscle

Question 30

state the organs that make up the digestive system

Answer 30

esophagus small intestine large intestine pancreas stomach liver gallbladder anus

Question 31

what is magnification?

Answer 31

how much larger a displayed image is compared with the original object

Question 32

How do you convert µm to mm

Answer 32

divide by 1000