VCE Biology Quiz 1
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Transcript of VCE Biology Quiz 1
VCE BIOLOGY QUIZ 1
www.drlakshmisharma.comDr Lakshmi Sharma
NO LIMITS TO LEARNING! BELIEVE & YOU CAN ACHIEVE!
Plants response to Environment & Regulatory mechanisms Animals
Face Off
Are you ready?
Question 1
What is Photoperiodism?
Photoperiodism is the plants
response to the length of light and
dark periods
Question 2
What is Thigmotropism?
The plants response to touch
Question 3
What are the 2 types of hormones in the body?
1. Synthesised from fatty acids
Small & lipid-soluble, easily pass through membranes – nucleus-act on genes
Steroid hormones – testosterone & oestrogen
2. Synthesised from amino acids
Water soluble, cannot pass through membranes – bind to receptors plasma membrane, responses in cell.
Adrenaline & growth hormones
Question 4
Explain short day plants?
Short Day Plants require long nights to trigger flowering.Late summer, autumn or winter
Question 5
What is the main difference between the nervous & endocrine system?
Endocrine system is slowerE.S hormones & glands N.S neurons
Question 6
What is vernalisation?
Vernalisation:period of winter
cold that stimulates flowering
Question 7
What is A ?
A
A
Question 8
Where is Ethylene produced?
Ripening fruits;flowers, seeds, leaves & roots.
Question 9
Explain/examples –ve & +ve geotropism?
Roots +ve & leaves –ve geotropism
Question 10
What is the action potential in neurons?
Nerve impulse or action potential is a wave of electrical change along the axon membrane stimulation involving the exchange of sodium and potassium ions. At the dendrite it stimulates the release of a chemical transmitter, which diffuses across a synapse.
Question 10
What are the 2 components of the central nervous system?
The brain & the spinal cord
Question 11
What happens to the cells in a plant shoot when Auxins are released?
Elongate – this causes the tip to bend towards the light
Question 12
Give 1 example of how plants differ from animal hormones?
Plants have;
1. Fewer Hormones
2. Relatively simple hormones
3. Hormone (not in glands) produced
by cells receiving the stimulus
Question 13
Name 4 types of receptors in humans?
PhotoreceptorsVisible light, infrared radiationChemoreceptorsTaste, smell, communicationOxygen, CO2, pH, water, salts etcMechanoreceptorsHearing, balance, pressure, touchThermoreceptors Heat and cold
Question 14
How do plants survive the harsh winters and drought?
Plants survive harsh winters and
droughts by:
Seed dormancy
Bud dormancy
Vernalisation
Question 15
Which hormone is responsible for fruit ripening?
Ethylene
Question 16
Give an example of a reflex action?
Knee jerk, hand on hot plate etc
Question 17
Abscisic Acid controls stomata movement – why do these close in drought conditions?
To prevent water lose from plant (prevent dehydration)
Question 18
This is an example of what?
+ve Geotropism
Question 19
Which hormone promotes growth of the entire plant?
Gibberellins
Question 20
Name the 2 types of nervous systems?
Central Nervous System
Peripheral Nervous System
Question 21What is A –state its function?
A
How do plants respond to the environment
Question 22
The environmental stimulus causes a sensitive cell to produce a particular hormone
Question 23How would you define this ?
Withdrawal Reflex
Question 24Which hormone is at play in the photo?
Abscisic Acid ABA
END OF QUIZScore Please !!!