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WorksheetsPart 1 2nd Quarterly Exam in Science 10
Total questions: 30
Worksheet time: 37mins
What do you call the chemical signals that regulate internal balance of the body?
hormones
blood
salts
neurons
What do you call the types of hormones that can enter the cell directly into the cell?
protein hormones
non-steroidal hormones
steroidal hormones
prostaglandins
Which of the following is correctly desecribes the function of the endocrine system?
It has a fast release and fast effects.
It regulates the body's metabolism through the use of hormones.
It regulates the body's metabolism through the use of neural stimulation.
It has a gradual and slow effect to the body.
Which of the following is the correct term for the body's sound and balanced environment?
catalysis
glycolysis
gluconeogenesis
homeostasis
Which of these is not an endocrine gland?
Pancreas
Salivary Gland
Parathyroid
Pineal Gland
Which is the following best describes the illustration?
The hormone attached to the receptor activated the production of cAMP.
The illustration shows the mechanism of a non-steroidal hormone.
Activation of the second messenger cAMP requires energy in the form of ATP
The illustration shows the mechanism of a steroidal hormone.
What do you call the encircle organ in the image?
(HINT: This realeases inhibiting and releasing hormones)
pineal gland
thymus
hypothalamus
testes
What do you call the sex glands in general?
gametes
gonads
oocytes
spermatocytes
Which glands is known as the master gland of all the glands in the endocrine system?
pituitary gland
hypothalamus
thyroid gland
parathyroid gland
Which hormone is responsible for the response to flight or fight events?
adrenaline
insulin
glucagon
oxytocin
Which hormone stimulates the growth of both egg cells and sperm cells?
TSH
FSH
LH
GnRH
Which of the following examples show positive feedback loops?
childbirth through the hormone oxytocin
blood sugar regulation by the pancreatic hormones
thermal regulation by the thyroid gland
stress regulation by the adrenal glands
What does the body do when it feels that the body temperature has dropped?
shivering
sweating
pupils dilated
blood vessels dilate
Which of the following is the hormone for relaxing the body?
cortisol
aldosterone
progesteron
adrenaline
When you are in a fasting state, which hormone is released into the bloodstream to make sure you have ample amount of energy to perform your task?
insulin
glucagon
thyroxine
calcitonin
Which disease is associated to blood sugar metabolism?
Grave's Disease
Diabetes
Dwarfism
Acromegaly
Which of the following is a symptom of Hyperthyroidism?
sensitivity to cold
low metabolic rate
excessive sweating
reduced mental activity
Who is the woman that used the picture of X-Ray diffraction to show the structure of the DNA to James Watson and Francis Crick?
Rosalind Franklin
Erwin Chargaff
Frederick Griffith
Avery Oswald
What is the structural shape of the DNA?
double helix
single helix
polygonal
hexagonal
Which location in the cell does mRNA translation occur?
cytoplasm
mitochondrion
nucleus
plasma membrane
What makes up a protein?
monosaccharide
glycerol
amino acid
nucleotide
What do you call the process where mRNA is made from the DNA strand?
transcription
translation
transfiguration
translocation
Which of the following molecules help in attaching amino acids during translation?
tRNA
mRNA
rRNA
pRNA
Which of the following are the parts of a nucleotide? Check three boxes.
phosphate
ribose
deoxyribose
nitrogen base
amino base
Where does DNA transcription happen?
nucleus
cytoplasm
mitochondria
rough endoplasmic reticulum
Which of the following is the correct mRNA for the codon:
T T G
U U G
A A C
G G C
C G C
Which of the following is the correct amino acid sequence for the following codons:
mRNA : G G C - C C A - A U G
Leu - Phe - Ser
Arg - Arg - Ile
Gly - Pro - Met
Ala - Ser - Asn
Which of the following is the correct tRNA for the DNA sequence below:
A T G - T A T - C G C - T T T
A U G - U A U - C G C - U U U
U U G - G C G - U U A - G G G
C A G - G A G - U U U - U G U
U A C - A U A - G C G - A A A
Which of the following is the correct amino acid for the codon:
A A U
Ser
Arg
Asn
Met
Which of the following is the correct mRNA sequence for the codons below:
A A G - G G C
T T C - C C G
T T T - C C C
U U C - C C G
A A A - U U G
