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WorksheetsBiology HL (Part 5)
Total questions: 25
Worksheet time: 13mins
Choose all functions of estrogen and progesterone during menstrual cycle
Stimulates follicular growth
Inhibits FSH and LH
Thickens endometrium lining
Formation of corpus luteum
Surge of what hormone would cause ovulation?
Luteinizing hormone
Follicle stimulating hormone
Estrogen
Progesterone
What is the name of the enzyme that will digest the zona pellucida?
Maltase
Zona pellucidase
Acrosome
Rubisco
What is the name of reaction that would prevent entry of a second sperm into ovum?
Cortical reaction
Acrosome reaction
Positive feedback reaction
Fusion reaction
How is blastocyst implanted in the endometrium lining?
Endometrium lining make projectiles to catch blastocyst
Projectile of trophoblastic cells that digest endometrium lining
Chemical attraction into the endometrium lining
Blastocyst and endometrium lining just stick together
What is the function of hCG hormone?
Secretes more estrogen and progesterone
Maintain the endometrium lining thickness
Promotes the growth of fetus
Maintain the corpus luteum
Which of these hormones prevents contraction of womb (until labour)?
Progesterone
Estrogen
hCG
Oxytocin
Oxytocin is an example of...
Negative feedback control
Positive feedback control
What are altricial animals?
Animal that are relatively mature and mobile soon after birth
Animal that are relatively helpless after birth
Gestation period
Animals that are bigger
What is the first process of In Vitro Fertilisation?
Implantation
Down regulation
Superovulation
Fertilisation
What theory does William Harvey manage to debunk in his investigation of sexual reproduction?
Seed & soil theory
Darwin's theory
Sperm & ovum theory
Sperm & blood theory
Minerals are essential nutrients
True
False
Ascorbic acids can be produced by human
True
False
What is the impact of anorexia nervosa?
Breakdown of DNA
Breakdown of heart muscle
Cancer production
Breakdown of brain tissue
What is the cause of phenylketonuria (PKU)?
Low vitamins intake
Excess of mineral intake
Gene mutation
Lack of phenylalanine
Which fatty acids are essential to human?
Omega-3
Omega-4
Omega-6
Omega-9
Choose all the nervous mechanism of gastric secretion
Sight and smell of food release gastric pre-ingestion
Increased acidity of stomach will inhibit gastrin secretion
Distention of stomach release hormones to sustain gastric simulation
Chyme that enters duodenum will release digestive juice
What cell is responsible to release H+ into stomach?
Chief cells
Parietal cells
Duct cells
Acinus
What structural features are present in villi?
Tight junctions
Duct cells
Pinocytotic vesicles
Microvilli
What infection would cause dehydration?
Helicobacter pylori
Escherichia coli
Vibrio cholerae
Pelagibacter ubique
What are the name of vessels in liver that perform material exchange?
Capillaries
Sinusoids
Hepatic portal veins
Hepatic arteries
Select the functions of liver
Breakdown of erythrocytes
Production of plasma membrane
Detoxification
Conversion of cholesterol to bile salts
What cell breakdown erythrocytes in liver?
Kupffer cells
Lymphocytes
Basophiles
Hepatocytes
What happens to globin group after erythrocytes breakdown?
Removal of iron
Hydrolysed into amino acids
Released into blood
Recycled into new erythrocytes
What could cause jaundice?
Damage to red blood cells
Obstruction of gall bladder
Liver disease
Too much Kupffer cells
