TISSUES

Question 1

what is a tissue

Answer 1

cells that are specialised in 1 function are grouped together in one part of the bosy. this cluster of cells are knows as tissues
the tissues are designed to provide maximum efficiency in the function that they are performing

Question 2

what are the properties of plant tissues

Answer 2

are rigid
stiff and not flexible
upright
have a large quantity of supportive tissues
growth is limited to certain regions

Question 3

what are the types of meristematic tissues

Answer 3

apical meristem
lateral meristem
intercalary meristem

Question 4

what is a meristematic tissue

Answer 4

1. a meristematic tissue is only located at certain parts of the plant and are separated based on their location
2. this is also known as the dividing tissue

Question 5

why is growth limited to certain regions of the plant?

Answer 5

this is because, the dividing tissue, also known as the meristematic tissue, is only located at certain parts of the plant

Question 6

what is the intercalary meristem

Answer 6

1. found near the node of the plant
2. main function is to help increase the length of the internode

Question 7

what is the apical meristem

Answer 7

the apical meristem is located at the tip of the stem and the root if the plant
its function is to increase the length of the plant

Question 8

what is the lateral meristem

Answer 8

1.the lateral meristem is found in the middle of the cell
2. it increases the girth of the plant

Question 9

properties of meristematic tissues

Answer 9

1. have a dense cytoplasm
2. think cell walls
3. prominent nuclei

Question 10

what is a permanent tissue

Answer 10

when the meristematic tissues produce cells, they loose their ability to divide and get a new permanent function. This is how they form permanent tissues

Question 11

what is differentiation

Answer 11

the process where the newly produced cells from the meristematic tissue gets a permanent shape, permanent size, and a permanent function

Question 12

what can the permanent tissues be divided into

Answer 12

permanent tissues can be divided into simple permanent tissues and complex permanent tissues

Question 13

what is a simple permanent tissue

Answer 13

a simple permanent tissue is located a few layers below the epidermis
these are the type of simple permanent tissues
1. parenchyma
2. aerenchyma
3, collenchyma
4. sclerenchyma
5. chlorenchyma

Question 14

what is parenchyma

Answer 14

parenchyma is the most common type of simple permanent tissue
its main function is the storage of food
thin cellulose walls
have lots of intercellular space

Question 15

what is the arenchyma

Answer 15

1, is a type of parenchyma that has air cavities in it
2, this is to ensure that the plants stay afloat on the water

Question 16

chlorenchyma

Answer 16

1. have chloroplast which contain chlorophyll
2. a type of parenchyma

Question 17

collenchyma

Answer 17

1.helps the plant to bend without breaking
2.has very little intercellular space
3. has irregular thickening at the edge of the cell

Question 18

what is the sclerenchyma

Answer 18

1.it helps make the plant hard and stiff
2. its cells are elongated and narrow and have the cell walls thickened
3, cells of this tissue are dead

Question 19

what is the epidermis

Answer 19

is the outercovering of the plant
only made up of 1 layer of cells

Question 20

what is the stomata and where is it located

Answer 20

the stomata are kidney shaped guard cells that are presented at the bottom of the leaf

Question 21

what is the roothair cell and where is it found

Answer 21

the root hair cells of the epidermis is located at the tip of the root hair cells
this si to increase the surface area so that the roots can absorb more water

Question 22

what is the secondary meristem

Answer 22

when the plant grown older, the outer protective system changes
the secondary meristematic tissue located at the cortex develops and forms the cork cells, they are made up of dead cells

Question 23

what is the complex permanent tissue

Answer 23

unlike the simple permanent tissue, the complex permanent tissue contains moere than 1 type of cells, the main divisions are the xylem and the phloem

Question 24

what are the parts of the xylem

Answer 24

1, xylem parenchyma
2. xylem fibres
3. xylem tracheid
4. xylem vesicles

Question 25

what are the parts of the phloem

Answer 25

1. phloem parenchyma
2. sieve tube
3. sieve cells
4. phloem fibres
5. companion cells