OCR 2010 A2 Biology Unit 2 - Control, Genome and Environment Watch

Falcon91
Badges: 0
Rep:
?
#1081
Report 8 years ago
#1081
Okay, a lot of people have asked for my notes which im going to make tonight, ill cover module 4, so like heres just a list to help me remember:
RedFanatic
Zoop
Liverpool FC
Maria-16
ibsaiyan
TX22
BuyingTheTicket
skatealexia
sufyaan
dopeyangel
tinkerbelle

Also ill post them up here in this thread and ill also pm you guys with it. Hope they help.
0
quote
reply
ibysaiyan
Badges: 14
Rep:
?
#1082
Report 8 years ago
#1082
(Original post by Falcon91)
Okay, a lot of people have asked for my notes which im going to make tonight, ill cover module 4, so like heres just a list to help me remember:
RedFanatic
Zoop
Liverpool FC
Maria-16

Also ill post them up here in this thread and ill also pm you guys with it. Hope they help.
and me ?
0
quote
reply
Falcon91
Badges: 0
Rep:
?
#1083
Report 8 years ago
#1083
(Original post by ibysaiyan)
and me ?
Yus ill pm you too

0
quote
reply
ibysaiyan
Badges: 14
Rep:
?
#1084
Report 8 years ago
#1084
(Original post by Falcon91)
Yus ill pm you too

Good. ;D
0
quote
reply
TX22
Badges: 0
Rep:
?
#1085
Report 8 years ago
#1085
Falcon 91 - PM me too. Thanks
0
quote
reply
buyingtheticket
Badges: 12
Rep:
?
#1086
Report 8 years ago
#1086
(Original post by Falcon91)
Okay, a lot of people have asked for my notes which im going to make tonight, ill cover module 4, so like heres just a list to help me remember:
RedFanatic
Zoop
Liverpool FC
Maria-16

Also ill post them up here in this thread and ill also pm you guys with it. Hope they help.
Me too please. Will rep!
0
quote
reply
skatealexia
  • Community Assistant
Badges: 14
Rep:
?
#1087
Report 8 years ago
#1087
Pm me too please, will rep!
0
quote
reply
sufyaan
Badges: 0
#1088
Report 8 years ago
#1088
Me too please. Thanks
0
quote
reply
Tinkerbelle ♥
Badges: 0
Rep:
?
#1089
Report 8 years ago
#1089
(Original post by Falcon91)
Okay, a lot of people have asked for my notes which im going to make tonight, ill cover module 4, so like heres just a list to help me remember:
RedFanatic
Zoop
Liverpool FC
Maria-16

Also ill post them up here in this thread and ill also pm you guys with it. Hope they help.
and meeeee!
0
quote
reply
dopeyangel101
Badges: 0
Rep:
?
#1090
Report 8 years ago
#1090
(Original post by Falcon91)
Okay, a lot of people have asked for my notes which im going to make tonight, ill cover module 4, so like heres just a list to help me remember:
RedFanatic
Zoop
Liverpool FC
Maria-16

Also ill post them up here in this thread and ill also pm you guys with it. Hope they help.
pretty please me too
0
quote
reply
Tinkerbelle ♥
Badges: 0
Rep:
?
#1091
Report 8 years ago
#1091
Just been reading back on this thread and you've all put the fear of god into me.

On the other hand it has given me motivation to go do some revision - like right this minute.. yawwwn.
0
quote
reply
ViolinGirl
Badges: 1
Rep:
?
#1092
Report 8 years ago
#1092
Plant responses!

Plants, like animals that are able to respond to both abiotic and biotic factors within their environment need to be able to respond to external stimuli in order to aviod stress and to survive to reproduce. Plant responses are tropisms.

Tropisms are directional growth responses in which the direction of the response is determined by the direction of the external stimuli.

There are several types:
1) Phototropism- the growth of a shoot is positively phototropic as it grows toward a light source to enable photosynthesis to occur.
2) Geotropism- roots grow towards the pull of gravity.
3) Thigmotropism- The growth of plants around other plants or solid structures in order to gain support.
4) Chemotropism- the growth towards a certain chemical, for example the pollen tube grows down the style to the ovaries where fertilaisation takes place.

Like in animals, plant responses are regulated by hormones, in plants they are known as growth regulators as they are not produced in endocrine glands but around the plant in certain tissues.

The hormomes are trasported around the plant by diffusion, active transport or mass flow in pholem sap/xylem vessels.
When they reach receptors on cell curface membranes which are a complemetary shape they can bind to them to allow the hormone to act on the correct tissue type.

There are 5 main hormones in plants:
1) auxins- these promote cell elongation, inhibit leaf abscission and inhibit growth of side stems
2) Absinsic acid-inhibits seed germination and growth
3) cytokines- promote cell division
4) Gibberelins- promote seed germination and stem growth
5) Ethene-promotes fruit ripening.
0
quote
reply
ViolinGirl
Badges: 1
Rep:
?
#1093
Report 8 years ago
#1093
Bored...
0
quote
reply
ibysaiyan
Badges: 14
Rep:
?
#1094
Report 8 years ago
#1094
(Original post by ViolinGirl)
Bored...
Yep I keep getting those moments quite frequently seeing that I got a mock on Tuesday! Gonna stay awake whole night now. as I wasted much of the day
What have you covered so far?
0
quote
reply
ibysaiyan
Badges: 14
Rep:
?
#1095
Report 8 years ago
#1095
(Original post by ViolinGirl)
Plant responses!

Plants, like animals that are able to respond to both abiotic and biotic factors within their environment need to be able to respond to external stimuli in order to aviod stress and to survive to reproduce. Plant responses are tropisms.

Tropisms are directional growth responses in which the direction of the response is determined by the direction of the external stimuli.

There are several types:
1) Phototropism- the growth of a shoot is positively phototropic as it grows toward a light source to enable photosynthesis to occur.
2) Geotropism- roots grow towards the pull of gravity.
3) Thigmotropism- The growth of plants around other plants or solid structures in order to gain support.
4) Chemotropism- the growth towards a certain chemical, for example the pollen tube grows down the style to the ovaries where fertilaisation takes place.

Like in animals, plant responses are regulated by hormones, in plants they are known as growth regulators as they are not produced in endocrine glands but around the plant in certain tissues.

The hormomes are trasported around the plant by diffusion, active transport or mass flow in pholem sap/xylem vessels.
When they reach receptors on cell curface membranes which are a complemetary shape they can bind to them to allow the hormone to act on the correct tissue type.

There are 5 main hormones in plants:
1) auxins- these promote cell elongation, inhibit leaf abscission and inhibit growth of side stems
2) Absinsic acid-inhibits seed germination and growth
3) cytokines- promote cell division
4) Gibberelins- promote seed germination and stem growth
5) Ethene-promotes fruit ripening.
:top:
0
quote
reply
ViolinGirl
Badges: 1
Rep:
?
#1096
Report 8 years ago
#1096
(Original post by ibysaiyan)
Yep I keep getting those moments quite frequently seeing that I got a mock on Tuesday! Gonna stay awake whole night now. as I wasted much of the day
What have you covered so far?
I've gone over all the topics at least once now. Just finished the book now. But I am not confident atm. I need to go over things I didn't look at for some time. Like environment...urgh
0
quote
reply
Tinkerbelle ♥
Badges: 0
Rep:
?
#1097
Report 8 years ago
#1097
(Original post by ibysaiyan)
Yep I keep getting those moments quite frequently seeing that I got a mock on Tuesday! Gonna stay awake whole night now. as I wasted much of the day
What have you covered so far?
I'm going to follow your lead I think. It'll be a late one for me
0
quote
reply
TX22
Badges: 0
Rep:
?
#1098
Report 8 years ago
#1098
What stimuli do plants need to respond to in their enviorment.

Light, predation, what else?
0
quote
reply
ibysaiyan
Badges: 14
Rep:
?
#1099
Report 8 years ago
#1099
(Original post by ViolinGirl)
I've gone over all the topics at least once now. Just finished the book now. But I am not confident atm. I need to go over things I didn't look at for some time. Like environment...urgh
Yep same here for me the weak points or ones which I haven't touched much are the environment stuff and behavior. Meh wolfgang kohler xD
0
quote
reply
ibysaiyan
Badges: 14
Rep:
?
#1100
Report 8 years ago
#1100
(Original post by TX22)
What stimuli do plants need to respond to in their enviorment.

Light, predation, what else?
Humidity,weather,co2 level ?
0
quote
reply
X

Reply to thread

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • University of Lincoln
    Brayford Campus Undergraduate
    Wed, 12 Dec '18
  • Bournemouth University
    Midwifery Open Day at Portsmouth Campus Undergraduate
    Wed, 12 Dec '18
  • Buckinghamshire New University
    All undergraduate Undergraduate
    Wed, 12 Dec '18

Do you like exams?

Yes (135)
18.42%
No (445)
60.71%
Not really bothered about them (153)
20.87%

Watched Threads

View All
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise