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Exam (elaborations)

BMAT-SECTION 2 From the GCSE 9-1 Science Content for Biology
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20

June 2024

2023/2024

A+
WHAT ARE THE SI PREFIXES nano- 10-9 micro- 10-6 milli- 10-3 centi- 10-2 deci- 10-1 kilo- 103 mega- 106 giga- 109 WHAT ARE THE FUNCTIONS OF THESE ANIMAL CELLULAR COMPONENTS(EUKARYOTIC)? Nucleus-Contains genetic material that controls the activities of the cell. Mitochondria-These are the where most of the aerobic respiration takes place, transferring the energy which the cell needs in order to work Cytoplasm-This is where most of the chemical reactions happen, it contains enzymes which control...
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BMAT SECTION 2 BIOLOGY PRACTICE QUESTIONS AND ANSWERS
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3

June 2024

2023/2024

A+
What is the structure and function of the cell membrane? -phospholipid bilayer -it regulates the transport of substances in and out of the cell What is the structure and function of the cytoplasm? -contains enzymes responsible for breaking down waste and aid in metabolic activities. -responsible for giving the cell it's shape What is the structure and function of the nuclues? -contains cell's DNA -controls its growth and reproduction What is the structure and function of the mitochondrion? ...
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BMAT- Biology Study Set with Questions and Answers
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June 2024

2023/2024

A
What does a Nuclues contain? Genetic material that controls the activities of the cell What is cytoplasm and what does it contain? Gel like substance where most chemical reactions happen; contains ezymes What are mitochondria? Site of aerobic respiration and releases energy that cells need to work What does the cell membrane do? Holds the cell together and controls what goes in and out What extra features does a plant cell have compared to an animal cell? Cell wall, chloroplast, vacuole Wha...
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BMAT Biology Study Questions and Answers
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4

June 2024

2023/2024

A+
What is the main 4 processes that happen when in cell division? Cells get bigger. The cell duplicates the DNA. The cell prepares to divide. The cell divides by mitosis. What is interphase? When the cell grows and duplicates the DNA. This will happen regardless what How many pairs of chromosomes do humans have? What do somatic cells have? 23 pairs of chromosomes and we usually call them 2n worth of genetic material. What is mitosis? Mitosis involves the replication of genetic material which me...
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BMAT Biology Questions and Answers
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8

June 2024

2023/2024

A+
Which events will occur when outside is too hot and the individual is sweating a lot? -Water content in blood is low -ADH production increases -Effect on nephrons on kidney high water absorption -Urine concentration concentrated How can sexually transmitted diseases be speead Through blood transfusion, skin contact (herpes) and pregnancy/child birth Sharing food or beverages does not transmit sexually transmitted diseases - similarly to respiratory droplet spread, these pathogens need to come i...
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BMAT Biology Practice Test Questions and Answers
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5

June 2024

2023/2024

A+
Anaerobic respiration leads to an O2 debt Which type of resp leads to O2 debt? Anaerobic Aerobic respiration Releases more energy per unit glucose than anaerobic Decrease aerobic resp --- decrease energy available for active transport Which type of resp releases more energy per unit of glucose? Aerobic Total amount of respiration in cell given by amount of CO2 produced (from aerobic respiration) + amount of lactic acid produced (from anaerobic respiration) Ribosome site of protein synthesis...
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BMAT Biology Practice Questions and Answers
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7

June 2024

2023/2024

A+
Endoskeleton Internal Skeleton Axial skeleton Skull, vertebral column, rib cage Appendicular skeleton Limbs, Pelvic/pectoral girdles chondrin Makes up cartilage chondrocytes cells that secrete chondrin compact bone Dense Bone, no visible cavities cancellous Spongy Bone trabeculae "Spicules" in spongy bone yellow marrow Inactive marrow, filled with adipose tissue red marrow produces red blood cells spongy bone location of marrow skeletal muscle controlled by somatic nervous system, s...
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BMAT BIOLOGY DNA AND GENE TECHNOLOGIES REVIEW QUESTIONS AND ANSWERS
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June 2024

2023/2024

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DNA structure double helix genetic code the ordering of nucleotides in DNA molecules that carries the genetic information in living cells protein synthesis the formation of proteins by using information contained in DNA and carried by mRNA amino acids monomers of proteins triplet code 3 bases of DNA that code for a single amino acid gene mutation A change in the sequence of the bases in a gene, which changes the structure of the polypeptide that the gene codes for. genetic engineering A te...
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BMAT Biology- Circulatory System Review Questions and Answers
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2

June 2024

2023/2024

A+
What type of circulatory system do we have double - blood gets pumped twice What are the two circulations of the Heart ? pulmonary and systemic Describe pulmonary circulation Deoxygenated blood enters lungs via pulmonary arteries. passes through capillaries around alveoli. oxygenated via gas exchange and leaves lungs via pulmonary vein Describe systemic circulation blood pumped from left ventricle all organs and back to right ventricle blood leaves L ventricle through aorta, which arteries b...
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BMAT Biology - Nervous System Review Questions and Answers
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June 2024

2023/2024

A+
Job: nervous system Allows the body to respond rapidly to changes in the environment What is a stimulus? A change in the internal or external environment How is a stimulus is detected? By specialised cells called receptors that are located in sense organs. Stimuli examples (5) Touch, pressure, light, sound, pain, chemicals or changes in position and temperature. What do receptors do? turn energy from stimuli into electrical impulses, which are rapidly transmitted to the central nervous syste...
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