AQA A-LEVEL BIOLOGY PAPER 1 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Question:
1. Which food test is heated in a water bath?
Answer:
Benedict's test
Question:
2. Which disaccharide is not a reducing sugar?
Answer:
Sucrose
Question:
3. Test for non-reducing sugars
Answer:
Add acid. Neutralise. Add Benedicts. Heat.
Question:
4. Hydrolysis
Answer:
Reaction performed by dilute HCl in the non reducing sugar test.
Question:
5. Glucose + fructose
Answer:
During the non-reducing sugar test what is sucrose hydrolysed into?
Question:
6. Which type of glucose makes up starch?
Answer:
Alpha
Question:
7. amylose and amylopectin
Answer:
Names of two types of starch
,Question:
8. Amylose
Answer:
Coiled, compact form of starch. Stored easily.
Question:
9. Amylopectin
Answer:
Branched form of starch. More easily hydrolysed.
Question:
10. surface area
Answer:
Branched carbohydrates have a higher _____ for enzymes to work on.
Question:
11. Glycogen
Answer:
Carbohydrate store in animals
Question:
12. branched
Answer:
Glycogen is....
Question:
13. metabolic rate
Answer:
Glycogen is more branched than amylopectin because animals have a higher
_____________
Question:
14. osmotically inactive.
Answer:
Starch is insoluble and therefore ....
Question:
15. What type of glucose is cellulose made from?
Answer:
Beta
, Question:
16. Alpha and beta glucose
Answer:
H and OH swapped on Carbon 1.
Question:
17. Fibrils
Answer:
Cellulose forms long chains called...
Question:
18. H bonds
Answer:
Cellulose molecules are crosslinked by
Question:
19. strength
Answer:
Cross linking of cellulose molecules gives them...
Question:
20. Triglycerides
Answer:
_______ are a good source of energy because they have a high ratio of energy-
storing carbon-hydrogen bonds
Question:
21. what are the roles of lipids?
Answer:
1. source of energy
2. waterproofing
3. insulation
4. protection
QUESTIONS AND CORRECT ANSWERS
Question:
1. Which food test is heated in a water bath?
Answer:
Benedict's test
Question:
2. Which disaccharide is not a reducing sugar?
Answer:
Sucrose
Question:
3. Test for non-reducing sugars
Answer:
Add acid. Neutralise. Add Benedicts. Heat.
Question:
4. Hydrolysis
Answer:
Reaction performed by dilute HCl in the non reducing sugar test.
Question:
5. Glucose + fructose
Answer:
During the non-reducing sugar test what is sucrose hydrolysed into?
Question:
6. Which type of glucose makes up starch?
Answer:
Alpha
Question:
7. amylose and amylopectin
Answer:
Names of two types of starch
,Question:
8. Amylose
Answer:
Coiled, compact form of starch. Stored easily.
Question:
9. Amylopectin
Answer:
Branched form of starch. More easily hydrolysed.
Question:
10. surface area
Answer:
Branched carbohydrates have a higher _____ for enzymes to work on.
Question:
11. Glycogen
Answer:
Carbohydrate store in animals
Question:
12. branched
Answer:
Glycogen is....
Question:
13. metabolic rate
Answer:
Glycogen is more branched than amylopectin because animals have a higher
_____________
Question:
14. osmotically inactive.
Answer:
Starch is insoluble and therefore ....
Question:
15. What type of glucose is cellulose made from?
Answer:
Beta
, Question:
16. Alpha and beta glucose
Answer:
H and OH swapped on Carbon 1.
Question:
17. Fibrils
Answer:
Cellulose forms long chains called...
Question:
18. H bonds
Answer:
Cellulose molecules are crosslinked by
Question:
19. strength
Answer:
Cross linking of cellulose molecules gives them...
Question:
20. Triglycerides
Answer:
_______ are a good source of energy because they have a high ratio of energy-
storing carbon-hydrogen bonds
Question:
21. what are the roles of lipids?
Answer:
1. source of energy
2. waterproofing
3. insulation
4. protection
