Photosynthesis

Question 1

What do plants use to produce food for themselves?

Answer 1

Light energy

Question 2

What are plants called because they make their own food?

Answer 2

Producers or Autotrophs

Question 3

Leaves contain chloroplasts which contain what?

Answer 3

Chlorophyll to perform photosynthesis

Question 4

Photosynthesis

Answer 4

6CO2 + 6H2O + sunlight > C6H12O6 + 6O2

Question 5

What is glucose used for?

Answer 5

To produce energy, to grow and for cell walls

Question 6

What are plants called because they don’t move?

Answer 6

Sessile

Question 7

What are animals called because they do move?

Answer 7

Motile

Question 8

What are all plants?

Answer 8

Multicellular

Question 9

What are advantages to being multicellular?

Answer 9

Large size, specialized cells, ability to survive across a wide range of environments

Question 10

What are the structures of a plant?

Answer 10

Cells, tissues, organs, systems

Question 11

What are the types of cells in plants?

Answer 11

Basic unit of organization; guard cells, palisade cells, epidermal cells

Question 12

What are the tissues of plants?

Answer 12

Similar cells clustered together to do a job; epidermal tissue

Question 13

What are the organs of plants?

Answer 13

Different tissues combined; roots, stems, leaves

Question 14

What are the systems of a plant?

Answer 14

Multiple organs working together; vascular system

Question 15

What does the phloem and xylem form?

Answer 15

A plants vascular system

Question 16

What does the xylem do?

Answer 16

Transports water and minerals from the soil to the leaves; made of dead cells (tracheids or vessel elements)

Question 17

What does the phloem do?

Answer 17

Transports glucose and sugars formed during photosynthesis; made of living cells (sleeve tubes)

Question 18

How does water enter the roots?

Answer 18

Osmosis from the soil to the xylem

Question 19

How are minerals transported into the xylem?

Answer 19

Facilitated diffusion

Question 20

What is the mixture of water and minerals called?

Answer 20

Xylem sap

Question 21

Water molecules, because of their shape and polar nature, are attracted to one another, what is this called?

Answer 21

Cohesion

Question 22

The water molecule are also attracted to the walls of the xylem which is called?

Answer 22

Adhesion

Question 23

What two factors allow water to move against gravity?

Answer 23

Root pressure and Transpiration

Question 24

What does root pressure do?

Answer 24

It pushes; as H2O moves into the roots it causes an increase in pressure, as pressure builds it forces water up the xylem

Question 25

What does transpiration do?

Answer 25

It pulls; as H2O exits the leaf by transpiration the cohesive attraction pulls xylem sap up to replace the lost water

Question 26

What cells produce sugars that provide energy for the whole plant?

Answer 26

The palisade cells and spongy cells

Question 27

How is sugar pumped into the phloem?

Answer 27

Active transport

Question 28

As the sugar concentration in the phloem increases, what will happen ?

Answer 28

Water will move in by osmosis

Question 29

As water moves in what increases?

Answer 29

Turgor pressure

Question 30

When turgor pressure rises what will happen to the phloem?

Answer 30

It will move through pores into neighbouring cells