Topic 1 - (photosynthesis) Flashcards

(33 cards)

1
Q

What do plants need in order to survive?

A
Water 
Light
Space
Reproduction 
Air
CO2
Heat
Nutrients
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the 3 steps to plant fertilisation?

A

1) the stigma secretes a sugary substance to attract pollen
2) The pollen tube grows through the style carrying the pollen
3) The pollen and the ovule meet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are some features of an insect pollinated plant?

A
  • brightly coloured
  • strongly scented
  • sticky pollen grains
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are some features of an wind pollinated plant?

A
  • large and feathery stigmas
  • no scent
  • dull colour
  • no nectar
  • lots of pollen grains
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the more successful method of pollination? Insect or wind?

A

Insect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are some methods of seed dispersal?

A
  • wind
  • water
  • animal skin/fur
  • birds eating seed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is germination?

A

The process where a plant emerges from a seed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is equation of photosynthesis?

A

Water + carbon dioxide + light energy - glucose + oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is photosynthesis?

A

A chemical reaction in the chloroplasts which uses light energy to convert water and carbon dioxide into glucose and oxygen.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where in a leaf is glucose stored?

A

The starch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the 4 things needed for photosynthesis?

A

1) sunlight
2) chlorophyll
3) water
4) CO2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How are leaves adapted for photosynthesis? Give 3 reasons:

A
  • they have a large surface area for absorbing light
  • the underside of the leaf is covered in stomata which allow the diffusion of gases
  • contain many chloroplasts in the palisade layer which trap light for photosynthesis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the functions of the XYLEM and PHLOEM?

A

Xylem - tubes in a plant that carry water from the roots to the leaves

Phloem- tubes in a plant that transport sugars around the plant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the stamen?

A

Male parts of a flower

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the anther?

A

Produces the the male sex cells and is held up by the filament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the filament?

A

Holds up the anther

17
Q

What is the sepal?

A

Protects the opened flower and is found underneath the main petals

18
Q

What is the carpel?

A

The female parts of a flower

19
Q

What is the stigma?

A

Secretes a sticky fluid to collect the pollen grains

20
Q

What is the style?

A

Connects the ovary to the stigma

21
Q

What is the ovary?

A

Produces the female sex cells or ovules

22
Q

What is the function of the guard cells?

A

Control the stomata

23
Q

What is the function of the palisade cell?

A

Packed with chloroplasts for photosynthesis

24
Q

What parts do only PLANT cells have?

A
  • a cell wall
  • a vacuole
  • chloroplasts
25
How are cells organised? From smallest to biggest:
SMALLEST : tissue Organ Organ system LARGEST: Organism
26
What part of a plant eventually develops into a fruit?
Ovary
27
What is the stomata?
Tiny holes on the underside of the leaf that allow diffusion of oxygen and carbon dioxide.
28
What are the air spaces?
Allow carbon dioxide to move easily between leaf cells
29
What is the cuticle?
Transparent, waxy, water proof layer
30
What is the upper and lower epidermis?
The first and last layers of cells, translucent. Lower epidermis has stomata and guard cells in it
31
What is the spongy mesophyll/layer?
Stores sugars, amino acids and gases in it. Has air pockets, but not as many chloroplasts as the palisade layer.
32
What is the palisade layer?
Contains many palisade cells which are packed with chloroplasts for photosynthesis
33
what is the chemical reaction in plants that has a product of carbon dioxide?
Respiration (aerobic)