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AQA A LEVEL BIOLOGY Paper 2 MS 2021
A-level BIOLOGY 7402/2 
Paper 2 Mark scheme June 2021 
 
Version: 1.0 Final 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
*216a7402/2/MS* 
 
 
 
 
 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevantquestions, by a panel based on subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate within and is the scheme which was used by them within this examination. The stan...
- Exam (elaborations)
- • 17 pages •
A-level BIOLOGY 7402/2 
Paper 2 Mark scheme June 2021 
 
Version: 1.0 Final 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
*216a7402/2/MS* 
 
 
 
 
 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevantquestions, by a panel based on subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate within and is the scheme which was used by them within this examination. The stan...
PORTAGE LEARNING CHEM 210 - MODULE 7 EXAM
PORTAGE LEARNING CHEM 210 -	 
MODULE 7 EXAM.	 
 
 
 
 
 
True or False: The ΔG value for a particular reaction is -78kJ/mol. This value indicates the reaction is NOT spontaneous. 
 
FALSE 
 
 
True or false: A biochemical metabolic pathway is a single reaction that converts starting material into products. 
 
FALSE 
 
 
True or false: Three ATP molecules are used in the energy-investing stage of glycolysis. FALSE 
 
 
True or False: The citric acid cycle occurs in the absence of oxygen. FALS...
- Exam (elaborations)
- • 14 pages •
PORTAGE LEARNING CHEM 210 -	 
MODULE 7 EXAM.	 
 
 
 
 
 
True or False: The ΔG value for a particular reaction is -78kJ/mol. This value indicates the reaction is NOT spontaneous. 
 
FALSE 
 
 
True or false: A biochemical metabolic pathway is a single reaction that converts starting material into products. 
 
FALSE 
 
 
True or false: Three ATP molecules are used in the energy-investing stage of glycolysis. FALSE 
 
 
True or False: The citric acid cycle occurs in the absence of oxygen. FALS...
PORTAGE LEARNING CHEM 210 - MODULE 8 EXAM
PORTAGE LEARNING CHEM 210 - MODULE 8 EXAM. 
 
 
Portage Learning Chem 210 - Module 8 exam. 
 
 
True or False: The majority of reactions of the urea cycle occur in the cytosol. 
 
TRUE 
 
True or False: NADH yields 1.5 ATP molecules after donating electrons and hydrogenatoms to the electron transfer chain (ETC). 
 
FALSE 
 
True or False: GTP is invested in the urea cycle. 
 
FALSE 
 
True or False: There are six complexes associated with the ETC. 
 
FALSE 
 
True or False: In the production ...
- Exam (elaborations)
- • 13 pages •
PORTAGE LEARNING CHEM 210 - MODULE 8 EXAM. 
 
 
Portage Learning Chem 210 - Module 8 exam. 
 
 
True or False: The majority of reactions of the urea cycle occur in the cytosol. 
 
TRUE 
 
True or False: NADH yields 1.5 ATP molecules after donating electrons and hydrogenatoms to the electron transfer chain (ETC). 
 
FALSE 
 
True or False: GTP is invested in the urea cycle. 
 
FALSE 
 
True or False: There are six complexes associated with the ETC. 
 
FALSE 
 
True or False: In the production ...
PORTAGE LEARNING CHEM 210-MODULE 6 EXAM
PORTAGE LEARNING CHEM 210 - MODULE 6 EXAM. 
 
 
 
 
 
In RNA, guanine always pairs with .	 
 
Thymine Guanine Cytosine Uracil 
Both A and B 
CYSTOSINE 
DNA is built from which of the following? Nucleosides 
Genes Purines Nucleotide Codons 
NUCLEOTIDE 
 
The Z-form helix of DNA is stabilized mainly by .	 
 
Ionic bonds Covalent bonds Hydrogen bonds Ion-dipole bonds 
Hydrogen covalent bonds 
HYDROGEN BONDS 
 
 
 
 
 
Which of the following pentose sugars is a constituent of mRNA? 
 
 
 
Ribose...
- Exam (elaborations)
- • 17 pages •
PORTAGE LEARNING CHEM 210 - MODULE 6 EXAM. 
 
 
 
 
 
In RNA, guanine always pairs with .	 
 
Thymine Guanine Cytosine Uracil 
Both A and B 
CYSTOSINE 
DNA is built from which of the following? Nucleosides 
Genes Purines Nucleotide Codons 
NUCLEOTIDE 
 
The Z-form helix of DNA is stabilized mainly by .	 
 
Ionic bonds Covalent bonds Hydrogen bonds Ion-dipole bonds 
Hydrogen covalent bonds 
HYDROGEN BONDS 
 
 
 
 
 
Which of the following pentose sugars is a constituent of mRNA? 
 
 
 
Ribose...
CHEM 103 MODULE 4 EXAM 2022
CHEM 103 
MODULE 4 EXAM 2022 
 
Question 1	 
Click this link to access the Periodic Table. This may be helpful throughout the exam. 
 
 
Write the subshell electron configuration (i.e.1s2 2s2, etc.) for the Fe26 atom. Fe26 = 26 electrons = 1s2 2s2 2p6 3s2 3p6 4s2 3d6 
 
Question 2	 Click this link to access the Periodic Table.This may be helpful throughout the exam. 
 
 
Write the subshell electron configuration (i.e.1s2 2s2, etc.) for the S16 atom. S16 = 16 electrons = 1s2 2s2 2p6 3s2 3p4 
 
Qu...
- Exam (elaborations)
- • 5 pages •
CHEM 103 
MODULE 4 EXAM 2022 
 
Question 1	 
Click this link to access the Periodic Table. This may be helpful throughout the exam. 
 
 
Write the subshell electron configuration (i.e.1s2 2s2, etc.) for the Fe26 atom. Fe26 = 26 electrons = 1s2 2s2 2p6 3s2 3p6 4s2 3d6 
 
Question 2	 Click this link to access the Periodic Table.This may be helpful throughout the exam. 
 
 
Write the subshell electron configuration (i.e.1s2 2s2, etc.) for the S16 atom. S16 = 16 electrons = 1s2 2s2 2p6 3s2 3p4 
 
Qu...
Portage Learning A&P 1 101 FINAL exam AP 1
Portage Learning A&P 1 101 FINAL exam AP1 
 
Question 1 
5 / 5 pts 
List two organs contained in the pelvic cavity. 
 
The pelvic cavity contains the bladder, reproductive organs and the rectum 
 
 
Question 2 
5 / 5 pts 
 
True or False? 
 
 
a.	The purpose of cellular respiration is to produce ADP. (T or F) 
 
b.	Peripheral proteins are found on the outer surface of a cell membrane. (T or F) 
 
c.	Exocytosis is the process that occurs to bring biomacromolecules inside the cell. (T or F) 
 
d.	...
- Exam (elaborations)
- • 13 pages •
Portage Learning A&P 1 101 FINAL exam AP1 
 
Question 1 
5 / 5 pts 
List two organs contained in the pelvic cavity. 
 
The pelvic cavity contains the bladder, reproductive organs and the rectum 
 
 
Question 2 
5 / 5 pts 
 
True or False? 
 
 
a.	The purpose of cellular respiration is to produce ADP. (T or F) 
 
b.	Peripheral proteins are found on the outer surface of a cell membrane. (T or F) 
 
c.	Exocytosis is the process that occurs to bring biomacromolecules inside the cell. (T or F) 
 
d.	...
PORTAGE LEARNING CHEM 210 - MODULE 8 PROBLEM SET
PORTAGE LEARNING CHEM 210 - MODULE 8 PROBLEM SET. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
This study source was downloaded by from CourseH on 02-14-2022 16:13:24 GMT -06:00 
 
 

 
 
 
 
 
 
 
What is the “unifying” theory covered in this module? 
 
 
Chemiosmotic theory 
 
 
 
 
How many ATP are produced per NADH molecule? Per FADH2 molecule? 
 
 
NADH produced 2.5 ATP, while produces FADH21.5 ATP. 
 
 
 
 
In th...
- Exam (elaborations)
- • 6 pages •
PORTAGE LEARNING CHEM 210 - MODULE 8 PROBLEM SET. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
This study source was downloaded by from CourseH on 02-14-2022 16:13:24 GMT -06:00 
 
 

 
 
 
 
 
 
 
What is the “unifying” theory covered in this module? 
 
 
Chemiosmotic theory 
 
 
 
 
How many ATP are produced per NADH molecule? Per FADH2 molecule? 
 
 
NADH produced 2.5 ATP, while produces FADH21.5 ATP. 
 
 
 
 
In th...
PORTAGE LEARNING CHEM 210 - MODULE 3 PROBLEM SET
PORTAGE LEARNING CHEM 210 - MODULE 3 PROBLEM SET. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
This study source was downloaded by from CourseH on 02 -14-2022 16:28:24 GMT -06:00 
 
 

 
 
 
 
 
Name three different functions of proteins. 
 
 
Transport, hormones, catalysis, structure, and protection 
 
 
 
 
What function does a protease have? 
 
 
catalysis. It degrades proteins. 
 
 
 
 
What is the function of hormones? 
 
 
 ...
- Exam (elaborations)
- • 8 pages •
PORTAGE LEARNING CHEM 210 - MODULE 3 PROBLEM SET. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
This study source was downloaded by from CourseH on 02 -14-2022 16:28:24 GMT -06:00 
 
 

 
 
 
 
 
Name three different functions of proteins. 
 
 
Transport, hormones, catalysis, structure, and protection 
 
 
 
 
What function does a protease have? 
 
 
catalysis. It degrades proteins. 
 
 
 
 
What is the function of hormones? 
 
 
 ...
HESI PN Mental Health Exam Pack V1&V2 BEST FOR 2022 EXAM
HESI PN MENTAL 
HEALTH EXAM PACK V1&V2 BEST FOR 2022 EXAM 
 
 
 
 
 
 
1.A	nurse is collecting data from a client who is experiencing alcohol withdrawal. Which of the manifestation should the nurse expect? 
Answer: Diaphoresis 
 
2.	A nurse in a longterm care center is caring for an adult client who has Alzheimer’s disease and whose partner died several years ago. The client appears upset and asls the nurse when his partner will visit again. The nurse states,”It seems like you are feeling...
- Exam (elaborations)
- • 14 pages •
HESI PN MENTAL 
HEALTH EXAM PACK V1&V2 BEST FOR 2022 EXAM 
 
 
 
 
 
 
1.A	nurse is collecting data from a client who is experiencing alcohol withdrawal. Which of the manifestation should the nurse expect? 
Answer: Diaphoresis 
 
2.	A nurse in a longterm care center is caring for an adult client who has Alzheimer’s disease and whose partner died several years ago. The client appears upset and asls the nurse when his partner will visit again. The nurse states,”It seems like you are feeling...
HESI RN EXIT EXAM-EXAM PACK COMBINED FROM 2019 2020 2021 ACTUAL EXAMS-BEST FOR 2022 EXIT EXAM REVIEW
1 
HESI RN EXIT EXAM-EXAM PAC COMBINED FROM 2019/2020/2021 ACTUAL EXAMS-BEST FOR 2022 EXIT EXAM REVIEW 
2 
HESI EXIT COMPREHENSIVE PROCTORED EXAM 
1. Which information is most concerning to the nurse when caring for an older client with bilateral cataracts? 
A. States having difficulty with color perception 
B. Presents with opacity of the lens upon assessment 
C. Complains of seeing a cobweb-type structure in the visual field 
D. Reports the need to use a magnifying glass to see small print 
Ra...
- Exam (elaborations)
- • 348 pages •
1 
HESI RN EXIT EXAM-EXAM PAC COMBINED FROM 2019/2020/2021 ACTUAL EXAMS-BEST FOR 2022 EXIT EXAM REVIEW 
2 
HESI EXIT COMPREHENSIVE PROCTORED EXAM 
1. Which information is most concerning to the nurse when caring for an older client with bilateral cataracts? 
A. States having difficulty with color perception 
B. Presents with opacity of the lens upon assessment 
C. Complains of seeing a cobweb-type structure in the visual field 
D. Reports the need to use a magnifying glass to see small print 
Ra...
Portage Learning A&P 1 101 FINAL exam AP 1