Free Printable VCE Biology Unit 1 AOS 2

1.

The graph illustrates

a)

homeostasis for the period shown.

b)

negative feedback.

c)

that the person is an untreated type I diabetic.

d)

positive feedback.

2.

X is most likely due to

a)

eating a large meal.

b)

exercise.

c)

starvation.

d)

release of glucagon.

3.

The endocrine organ(s) involved is/are the

a)

pancreas only in both systems.

b)

pancreas in system II and the liver in system I.

c)

pancreas and liver in both systems.

d)

pancreas, kidney and liver in both systems.

4.

Excess glucose is stored as

a)

glucagon

b)

glycerol

c)

glycogen

d)

glycolysis

5.

The graph below shows the temperature variation of an organism over a 24-hour period.

a)

indicates positive feedback.

b)

represents an ectotherm.

c)

represents an endotherm.

d)

is for an organism which cannot produce metabolic heat.

6.

Reptiles

a)

are unable to regulate their body temperature.

b)

can raise their body temperature using physiological means.

c)

can regulate their body temperature via behavioural means.

d)

maintain a relatively stable body temperature.

7.

Symbiosis describes

a)

organisms living in the same environment.

b)

members of the same species being dependent on each other.

c)

members of different species living together and interacting with each other.

d)

similar requirements of organisms.

8.

Organisms in a mutualistic relationship would

a)

both benefit.

b)

both be harmed.

c)

not affect each other.

d)

either benefit or harm each other, depending on the organism.

9.

The food web below is for an aquatic environment.

The original source of energy for the pelican is

a)

the carp.

b)

the mosquito fish.

c)

algae.

d)

the Sun.

10.

The longest food chain in the above food web consists of

a)

two producers and one consumer.

b)

one producer and three carnivores.

c)

one producer, one herbivore and two carnivores.

d)

one producer, one herbivore, one carnivore and one scavenger.

11.

A boy is bitten by a mosquito which he catches and feeds to a goldfish. A food chain of this would be represented by

a)

mosquito → goldfish → human

b)

human ←mosquito ← goldfish

c)

mosquito → human → goldfish

d)

human → mosquito → goldfish

12.

A boy is bitten by a mosquito which he catches and feeds to a goldfish. The boy in this situation is

a)

a host.

b)

a predator.

c)

an omnivore.

d)

a carnivore.

13.

A bird population on an island was monitored and recorded over a period of time. There would be a net increase in its population if

a)

immigration and emigration were greater than births and deaths.

b)

birth and emigration were greater than death and immigration.

c)

birth and immigration were greater than death and emigration.

d)

death and emigration were greater than birth and immigration.

14.

Homeostasis can be defined as ‘maintaining constant internal body conditions.’ Which of the following is an example of homeostasis?

a)

controlling the temperature of the body

b)

controlling the emptying of the bladder

c)

foot movement when standing on a hot surface

d)

the amount of light entering the eye

15.

The physiological function of shivering is to

a)

release toxic wastes from muscles into the blood

b)

remove excess ATP

c)

remove lactic acid from the muscles

d)

help to generate heat

16.

If the concentration of solutes in the blood rises above a certain level, then

a)

more water is reabsorbed in the kidney tubules

b)

less water is reabsorbed in the kidney tubules

c)

more salt is reabsorbed in the kidney tubules

d)

less glucose is reabsorbed in the kidney tubules

17.

Steven Moneghetti is one of five Australian marathon runners to complete 42km under 2 hours and 10 minutes. When Steven is racing he will take in fluids at various stages of the races. Maintaining water balance also requires help from the endocrine system. Change in water levels is monitored by the hypothalamus that stimulates the pituitary gland to secrete a hormone. The hormone acts upon an organ that increases the reabsorption of water into the blood stream.

What is the hormone released by the pituitary gland?

a)

Insulin

b)

Thyroxine

c)

Antidiuretic hormone

d)

glucagon

18.

Steven Moneghetti is one of five Australian marathon runners to complete 42km under 2 hours and 10 minutes. When Steven is racing he will take in fluids at various stages of the races. Maintaining water balance also requires help from the endocrine system. Change in water levels is monitored by the hypothalamus that stimulates the pituitary gland to secrete a hormone. The hormone acts upon an organ that increases the reabsorption of water into the blood stream.

What part of the feedback system would be the receptor?

a)

Hypothalamus

b)

Pituitary gland

c)

Central nervous system

d)

Peripheral nervous system

19.

Steven Moneghetti is one of five Australian marathon runners to complete 42km under 2 hours and 10 minutes. When Steven is racing he will take in fluids at various stages of the races. Maintaining water balance also requires help from the endocrine system. Change in water levels is monitored by the hypothalamus that stimulates the pituitary gland to secrete a hormone. The hormone acts upon an organ that increases the reabsorption of water into the blood stream. What part of the feedback system would be the effector?

a)

Pituitary gland

b)

Kidney

c)

Blood vessels

d)

Concentrated urine

20.

In hot weather the urine becomes:

a)

more concentrated and lighter in colour

b)

more concentrated and darker in colour

c)

less concentrated and lighter in colour

d)

less concentrated and darker in colour.

21.

Classification is vital for an accurate study of the biological specimens. This is mainly because:

a)

it aids in communication

b)

it allows biologists to study similarities and differences between specimens

c)

it is necessary to have a universal language so biologist all over the world use the same classifications for the same species

d)

All of the above

22.

Felis catus is the scientific name for the domestic cat, a member of the Canidae group. Canidae would therefore be the name for which level of classification?

a)

Phylum

b)

Class

c)

Family

d)

Genus

23.

If the environment gets cold, we will often shiver in order to:

a)

keep body temperature the same as the external temperature

b)

decrease body temperature

c)

increase body temperature

d)

regulate blood pressure

24.

Which of the following is an example of a behavioural adaptation?

a)

A seal producing a chemical that helps it store extra oxygen for deep dives

b)

A desert rat being nocturnal to avoid the heat of the day

c)

A male emperor penguin making milk in its gut to feed its chick

d)

The ability of a seal to divert more blood to its brain during diving

25.

Osmoregulation is the process in which

a)

animals maintain their core temperature

b)

animals maintain the sugar levels in their blood

c)

animals maintain their water balance

d)

animals reproduce to maintain their numbers

26.

This disorder is caused by the pancreas failing to produce sufficient amount of insulin is:

a)

type I Diabetes Mellitus

b)

type II Diabetes Mellitus

c)

hyperthyroidism

d)

hypothyroidism

27.

Which one of the following sequences shows Linnaean’s correct hierarchy of classification system?

a)

Kingdom, Domain, Phylum, Order, Class, Family, Genus, Species

b)

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

c)

Genus, Species, Kingdom, Phylum, Order, Class, Family

d)

Domain, Phylum, Kingdom, Genus, Species, Family, Order, Class

28.

The largest number of individual species in an environment that can be sustainable is called:

a)

carrying capacity

b)

emigration

c)

immigration

d)

population density

29.

A biotic or abiotic factor that controls the size of a population is called a:

a)

limiting factor

b)

density- dependent factor

c)

density- independent factor

d)

tolerance

30.

Why are producers always at the beginning of a food chain?

a)

Consumers are eaten by a variety of producers

b)

Producers create their own energy

c)

Producers are larger than consumers

d)

Producers are found in fewer numbers than consumers

31.

According to the following food web, if more Wrens were introduced into this ecosystem there will most likely be an immediate decrease in:

a)

The frog population

b)

The snake population

c)

The falcon population

d)

The grasshopper population

32.

A group of organisms that belong to the same species living together and interacting with each

other are called a

a)

biosystem.

b)

community.

c)

population.

d)

ecosystem.

33.

The main source of energy for producers in an ecosystem is:

a)

kinetic energy.

b)

thermal energy.

c)

chemical energy.

d)

light energy.

34.

Two abiotic factors that affect an ecosystem are:

a)

temperature and animals.

b)

soil and water.

c)

plants and animals.

d)

water and bacteria.

35.

Which adaptation would decrease water loss from a plant in a region with low rainfall?

a)

Broad leaves

b)

Surface roots

c)

Sunken stomates

d)

Loosely packed epidermal cells

36.

The hibernation and estivation of some animals during seasons of environmental stress are both

examples of

a)

acclimatisation.

b)

torpor.

c)

evaporative cooling.

d)

non-shivering thermogenesis.

37.

The panting responses that are observed in overheated dogs dissipates excess heat by

a)

counter current exchange.

b)

acclimation.

c)

hibernation.

d)

evaporation.

38.

Humans can lose, but cannot gain, heat through the process of

a)

conduction.

b)

evaporation

c)

convection.

d)

radiation.

39.

An example of effectors' roles in homeostatic responses is observable in young children when

a)

an increase in body temperature results from involuntary shivering.

b)

an increase in body temperature results from exercise.

c)

the rising sun causes an increase in body temperature in a stationary animal.

d)

an increase in body temperature results from fever.

40.

The body's tendency to maintain a constant and optimal internal environment is termed:

a)

balanced equilibrium.

b)

physiological chance.

c)

homeostasis.

d)

static equilibrium.

41.

An example of a properly functioning homeostatic control system is seen when

a)

the core body temperature of a runner rises gradually from 37°C to 45°C.

b)

the kidneys will increase their filtration rate producing more urine, when the body has too much fluid.

c)

a blood cell shrinks when placed in a solution of salt and water.

d)

the blood pressure increases in response to an increase in blood volume.

42.

Huddling is used by many animals in cold environments. By huddling

a)

The surface area of the group of animals is reduced and less heat is lost by radiation.

b)

Animals can lose heat by conduction from each other.

c)

Some animals will die on the outside of the group for the survival of the others.

d)

The group of animals together would be more threatening to the predators.

43.

The biotic component of a hot humid spring is the

a)

rain

b)

fungus

c)

temperature

d)

available nutrients

44.

The source of energy for the grass comes from

a)

nutrients in the soil

b)

the sun

c)

rain

d)

fertilizers

45.

Frogs compete

a)

with snake for rabbit.

b)

with rabbit for grass.

c)

with mice for crickets.

d)

with hawk for mice.

46.

In terms of feeding the hawk would be classed as

a)

tertiary consumer only.

b)

secondary and tertiary consumer only.

c)

quaternary consumer only.

d)

secondary, tertiary and quaternary consumer.

47.

Which of the following is an example of an organism maintaining homeostasis??

a)

A plant using the openings on its leaves, stomata, to exchange gases and evaporate water to allow more water to get into the plant

b)

A Runner perspiring while running on a hot summer day

c)

The human body releasing insulin to keep blood sugar steady

d)

The maintain ace of a body temperature around 98.6 degrees F

e)

All of the above

48.

which of the following represents the smallest level of biological organization?

a)

organs

b)

populations

c)

cells

d)

tissues

49.

when a person does alot of exercise, blood vessels near the surface of the skin increase in diameter to allow blood to be nearer to the surface and help cool the body. this best illustrates...

a)

synthesis

b)

homeostasis

c)

excretion

d)

locomotion

50.

Observations or data deal with numbers

a)

Quantitative

b)

Opinions

c)

Qualitative

d)

Numerical

51.

The step of the Scientific Method in which the scientist makes a testable prediction about their observation.

a)

Troubleshooting

b)

Experimentation

c)

Forming a Hypothesis

d)

Exploration

52.

Check all of the following that would be considered Qualitative Data

a)

The color of the grass

b)

The number of tomatoes on the plant

c)

The time is takes for a dog to run 200m

d)

The smell of an exotic flower

53.

When testing your hypothesis, how many independent variables should you be testing?

a)

1

b)

2

c)

3

d)

4

54.

What is the purpose of the Control Group?

a)

To control the results

b)

To make the experiment official

c)

To test the constants

d)

To be compared to the Experimental Group

55.

In an good experiment, we are measuring what?

a)

The Dependent Variable

b)

The Independent Variable

c)

The Hypotenuse

d)

The Control

56.

On a line graph, which variable is displayed on the bottom axis?

a)

Independent

b)

Dependent

c)

Codependent

d)

Non-dependent

57.

If you complete your experiment and get inconclusive data, what is your next step?

a)

Repeat the exact same experiment

b)

Quit

c)

Lie about your data

d)

Repeat your experiment, but tweak your hypothesis or experiment

58.

Based on the method by which they get food, organisms are classified as autotrophs or heterotrophs. Which organism listed below is correctly paired?

a)

Tiger - autotroph

b)

Human - heterotroph

c)

Grass - heterotroph

d)

Fish - autotroph

59.

Algae and multicellular plants are autotrophs because they

a)

decomposed dead organisms

b)

absorb nutrients from the soil

c)

break down starches into glucose

d)

capture sunlight and convert the energy into chemical energy

60.

Which of these best describes an organism's ability to maintain the constant internal conditions necessary for life?

a)

homeostasis

b)

stability

c)

reproduction

d)

adaptation

61.

Biotic means ______________.

a)

Living organisms.

b)

Non living factors.

c)

Living and non living factors.

d)

Plants and rocks

62.

Shivering is a mechanism for maintaining a constant body temperature. What characteristic of life is represented?

a)

Highly organized

b)

Homeostasis

c)

Growth and developmrnt

d)

Evolve

63.

The scientific name for something living is a(an)

a)

organism

b)

cell

c)

tissue

d)

human

64.

What is a biosphere?

a)

basic unit of life

b)

everything that lives on Earth

c)

species

d)

chemicals

65.

What is a species?

a)

particular type of living things that can breed and reproduce

b)

characteristic of life

c)

study of life

d)

step in scientific method

66.

What is metabolism?

a)

single stage of offspring

b)

group of related parts that work together

c)

fully grown

d)

chemical processes that happen in an organism

VCE Biology Unit 1 AOS 2

Total questions: 66

Worksheet time: 27mins

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