Poll: What do you think the 6 marker will be?
Embryonic Stem cells/Genetic disorders (16)
29.09%
Mitosis and Meiosis (11)
20%
Speciation (13)
23.64%
Quadrats and Transects (6)
10.91%
Limiting factors of photosynthesis in the greenhouse (9)
16.36%
ali_d123
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#141
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#141
(Original post by Ammy97)
Okay, your question is:

What did Mendel mean by "hereditary unit"? (probs a 1 marker)
i dont know O_O
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BI0
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#142
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#142
(Original post by Ammy97)
Okay, your question is:

What did Mendel mean by "hereditary unit"? (probs a 1 marker)
Alleles!
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Midnight1811
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#143
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#143
(Original post by BI0)
I think maybe a B, or a low A. You can retake it though (:
My biology ISA was bobbins I got 36 and a few people got 46. I congratulated them as that's like getting a exam 100 ums score. But I bogeled how they picked so many marks so if you any of you kind members give me a few tips to revise or prepare for an ISA as id like to get a few extra marks so if you can shed any light on how to do well on a isa I'll be ever grateful !

Good luck with your exams as I'm sure you'll past or even pass with flying colours
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Chlorophile
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#144
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#144
(Original post by Mrkingpenguin)
Examiners will deviate from the ms if it is still correct within reason
Still, I'm really unimpressed with AQA's new science course. The fact of the matter is that the mark schemes should not be omitting obvious (and the emulsifying properties of bile are in the specification) points. The fact that the grade boundaries are so low also shows that the exams are either simply too hard or the mark schemes are too picky. Scoring 65% in the B1 exams last June would have gotten you an A*, which just shows how inappropriate the exam was.
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Mrkingpenguin
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#145
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#145
I will add a poll tomorrow to gage how hard/easy everyone found it
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BI0
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#146
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#146
(Original post by Midnight1811)
My biology ISA was bobbins I got 36 and a few people got 46. I congratulated them as that's like getting a exam 100 ums score. But I bogeled how they picked so many marks so if you any of you kind members give me a few tips to revise or prepare for an ISA as id like to get a few extra marks so if you can shed any light on how to do well on a isa I'll be ever grateful !

Good luck with your exams as I'm sure you'll past or even pass with flying colours
Thanks! ISAs are difficult, whatever people say! You need to remember the mark scheme - section 1 is always the same. Then just remember some key words like random error, systematic etc and use them in section 2 to impress your teacher!

Oh yeah, some questions for people who want them!

1) What are the 4 things proteins act as?
2) What is diffusion?
3) What are the three types of tissue, and what are they used for in the stomach?
4) Name three plant organs
5) Name the 5 ways which glucose is used in plants
6) Name the 4 ways in which energy from respiration is used

(;
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Arshii
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#147
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#147
(Original post by Ammy97)
Does anyone want to test each other?
Explain Speciation like what is it, how does it occur...?
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cjslions
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#148
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#148
Good luck everyone my bets involves the organs in digestion uses of enzymes and mitosis and meiosis definitely coming up!!
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Afghan Warrior
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#149
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#149
Hey, i just made an account right now and Im wondering do we need to know all the stages in mitosis and meiosis? Or do we just need to know the basics?
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Afghan Warrior
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#150
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#150
(Original post by Arshii)
Explain Speciation like what is it, how does it occur...?

Give advantages and disadvantages of using enzymes in industry
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Chlorophile
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#151
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#151
(Original post by Afghan Warrior)
Hey, i just made an account right now and Im wondering do we need to know all the stages in mitosis and meiosis? Or do we just need to know the basics?
It wouldn't harm you to know the stages, but I'm pretty certain that my biology teacher told us we don't need to know the details.
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Ammy97
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#152
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#152
(Original post by Arshii)
Explain Speciation like what is it, how does it occur...?
ok, speciation is the development of a new species. This is caused by 2 populations (or more) being separated by a geographical divide. The different populations adapt to their environment (through natural selection - variation and mutations) and become so different that the populations are unable to breed together and produce fertile offspring, so the different populations are different species.

What is an allele?
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cjslions
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#153
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#153
(Original post by BI0)
Thanks! ISAs are difficult, whatever people say! You need to remember the mark scheme - section 1 is always the same. Then just remember some key words like random error, systematic etc and use them in section 2 to impress your teacher!

Oh yeah, some questions for people who want them!

1) What are the 4 things proteins act as?
2) What is diffusion?
3) What are the three types of tissue, and what are they used for in the stomach?
4) Name three plant organs
5) Name the 5 ways which glucose is used in plants
6) Name the 4 ways in which energy from respiration is used

(;
1) structural components of tissues ie muscles/ antibodies/ biological catalysts/ oh god can't remember the other one HELP HAHAH
2)The spreading of particles in a gas or any substance in solution resulting in the net movement from an area of high concentration to an area of low concentration - to increase rate increase concentration gradient
3) stomach - church contents glandular - digestive juices epithelial - cover inside and outside of stomach
4) stem roots leaves
5) Cellulose cell wall - respiration - lipids for storage - protein manufacture - insoluble starch for storage
6) molecules from large to small - to contract muscles - maintain steady body temp (birds) - protein manufacture (plants)

HOPE THAT'S RIGHT GUYS AND WHAT ABOUT THE 4th one for question 1!!!
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cjslions
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#154
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#154
(Original post by Ammy97)
ok, speciation is the development of a new species. This is caused by 2 populations (or more) being separated by a geographical divide. The different populations adapt to their environment (through natural selection - variation and mutations) and become so different that the populations are unable to breed together and produce fertile offspring, so the different populations are different species.

What is an allele?
Allele - alternative form of a gene
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Afghan Warrior
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#155
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#155
(Original post by Chlorophile)
It wouldn't harm you to know the stages, but I'm pretty certain that my biology teacher told us we don't need to know the details.
oh okay, i'm just really confused between the two. I know that in meiosis gametes are involved, and that 4 gametes are produced in the end. with mitosis the cell reproduces itself by splitting into two identical offspring. is that enough? because im really confused
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Efemena15
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#156
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#156
(Original post by cjslions)
1) structural components of tissues ie muscles/ antibodies/ biological catalysts/ oh god can't remember the other one HELP HAHAH
2)The spreading of particles in a gas or any substance in solution resulting in the net movement from an area of high concentration to an area of low concentration - to increase rate increase concentration gradient
3) stomach - church contents glandular - digestive juices epithelial - cover inside and outside of stomach
4) stem roots leaves
5) Cellulose cell wall - respiration - lipids for storage - protein manufacture - insoluble starch for storage
6) molecules from large to small - to contract muscles - maintain steady body temp (birds) - protein manufacture (plants)

HOPE THAT'S RIGHT GUYS AND WHAT ABOUT THE 4th one for question 1!!!
Hormones

Remeber it as

H
A
C
S
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lolface32
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#157
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#157
(Original post by BI0)
Thanks! ISAs are difficult, whatever people say! You need to remember the mark scheme - section 1 is always the same. Then just remember some key words like random error, systematic etc and use them in section 2 to impress your teacher!

Oh yeah, some questions for people who want them!

1) What are the 4 things proteins act as?
2) What is diffusion?
3) What are the three types of tissue, and what are they used for in the stomach?
4) Name three plant organs
5) Name the 5 ways which glucose is used in plants
6) Name the 4 ways in which energy from respiration is used

(;
1) -Hormones (insulin)
- Enzymes
-Antibodies
-Structural components
2) A overall Net movement of dissolved substances going down from an area of high concentration to low concentration?
3) Epithelial- Protects the lining of the stomach
Muscular- Churns food
Glandular- Secretes enzymes and acids
4) Stem, Root, Leaf
5) -Used to build up cell walls from carbohydrate
- Combined with Nitrate ions and mineral ions to build up amino acids
- Converted to in-soluble starch for storage
- Converted to fats and oils which can be used for seeds during germination or to strengthen the cell wall
-Provides energy from cells
6) -To allow muscular contractions
-To build up large molecules from smaller ones
- To keep body temperature of a mammal constant and warm.

Cannot think of 4 though?
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cjslions
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#158
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#158
Here's some questions for any if you guys:
1) What is in a bacterial cell?
2)What is the role of the small and large intestine?
3) 3 limiting factors and why they limit the rate?
4) 4 industrial and home uses of enzymes?
5) changes that take place in aerobic respiration?
6) the 4 ways fossils are formed?
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Efemena15
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#159
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#159
(Original post by cjslions)
1) structural components of tissues ie muscles/ antibodies/ biological catalysts/ oh god can't remember the other one HELP HAHAH
2)The spreading of particles in a gas or any substance in solution resulting in the net movement from an area of high concentration to an area of low concentration - to increase rate increase concentration gradient
3) stomach - church contents glandular - digestive juices epithelial - cover inside and outside of stomach
4) stem roots leaves
5) Cellulose cell wall - respiration - lipids for storage - protein manufacture - insoluble starch for storage
6) molecules from large to small - to contract muscles - maintain steady body temp (birds) - protein manufacture (plants)

HOPE THAT'S RIGHT GUYS AND WHAT ABOUT THE 4th one for question 1!!!
Btw way for Q6 its large from small, not large to small
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syhash
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#160
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#160
(Original post by cjslions)
1) structural components of tissues ie muscles/ antibodies/ biological catalysts/ oh god can't remember the other one HELP HAHAH

HOPE THAT'S RIGHT GUYS AND WHAT ABOUT THE 4th one for question 1!!!
Yep you got those three, proteins act as: hormones, antibodies, structural components of tissues e.g. muscles, and catalysts (in the form of enzymes)
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