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Y9- Final Exam Review

Total questions: 109

Worksheet time: 57mins

Name
Class
Date
1.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
2.

What is a gene?

a)

A molecule made of a nitrogen base, a sugar, and a phosphate

b)

A short length of DNA that codes for a chromosome

c)

A short length of DNA that codes for a protein

d)

Coiled and condensed fibers that form chromosomes

3.

Which of the following are the DNA nucleotides?

a)

Adenine (A)

b)

Thymine (T)

c)

Uracil (U)

d)

Cytosine (C)

e)

Guanine (G)

4.

What is the shape of DNA called?

a)

Twisted Ladder

b)

Double Helix

c)

Spiraled Molecule

d)

Ladder Helix

5.

Which statement best describes DNA's relationship to a gene and chromosome?

a)

A gene contains several chromosomes, and chromosomes are made from DNA.

b)

A gene is a short section of DNA, and a chromosome is made from DNA.

c)

DNA is made of chromosomes, and a gene contains DNA.

d)

DNA is coiled into a chromosome, and a gene holds the chromosome together.

6.

What is it?

a)

cell

b)

chromosome

c)

nucleus

d)

gene

7.

In eukaryotes, chromosomes are found

a)

in the nucleus

b)

in the cytoplasm

c)

in the cell wall

8.

In prokaryotes (bacterial cells), DNA is found

a)

in the nucleus

b)

in the cytoplasm

c)

In the cell wall

9.

Eye color, hair color, having freckles, etc. are examples of:

a)

DNA

b)

Chromosomes

c)

Genes

d)

Traits

10.
The traits of an organism are passed to its offspring on small coded strands of DNA material called
a)
meiosis
b)
recessive traits
c)
genes
d)
heredity
11.

What do genes do?

a)

Give the body chromosomes.

b)

Control the DNA.

c)

Control the production of proteins.

12.
What gender has an X and a Y chromosome?
a)
male
b)
female
13.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
14.

The sugar molecule that is part of a DNA nucleotide.

a)

Phosphate Group

b)

Nitrogenous Base

c)

Deoxyribose

15.

Which 2 molecules form the sides (backbone) of the DNA molecule?

a)

deoxyribose sugar

b)

hydrogen bonds

c)

nitrogenous bases

d)

phosphate groups

16.
What makes the rungs or steps of the DNA molecule?
a)
nitrogenous bases
b)
deoxyribose
c)
phosphate groups
d)
none of the above
17.

Which sequence of DNA bases would pair with this partial strand

ATG TGA CAG

a)

ATG TGA CAG

b)

TAC ACT GTC

c)

GTA AGT GAC

d)

CAT TCA CTG

18.

The human genome contains a total of ____chromosomes.

a)

23

b)

46

c)

92

d)

all of the above

19.

A group of similar organisms that do produce fertile offspring (offspring that can reproduce)

a)

Species

b)

Population

c)

Generation

20.

When species produce more offspring than can survive, this is called

a)

Overproduction

b)

Competition

c)

Predation (predator/prey)

21.

When resources are limited , organisms compete for these resources (food, land), and this is called...

a)

Predation

b)

Competition

c)

Overproduction

22.

Differences among individual members of the same species (think the finches) is called

a)

natural selection

b)

adaptation

c)

variation

23.

If green and brown moths live in a forest environment, the fact that the brown moths are easier to see and are less likely to survive is called

a)

natural selection

b)

overproduction

c)

competition

24.

What eventually happens to a species when the environment changes and the organisms do not adapt?

a)

Classification

b)

Extinction

c)

Overproduction

25.

A behavior or structure that allows organisms to survive, reproduce, and pass on traits to offspring is called an

a)

competition

b)

variation

c)

adaptation

26.

Which of the following is NOT one of the four conditions necessary for natural selection to occur?

a)

Overproduction

b)

Struggle to Survive/Competition

c)

Symbiosis

27.

Which term refers to an organism that hunts and kills for food?

a)

Prey

b)

Predator

28.

Which term refers to an organism that is hunted and eaten for food?

a)

Predator

b)

Prey

29.

Who studied on the Galapagos Islands and came up with the theory of evolution with natural selection?

a)

Isaac Newton

b)

Gregor Mendel

c)

Charles Darwin

30.

Individuals in a population that have a variation which gives them an advantage in their environment (cactus with thorns) are more likely to...

a)

die and not reproduce

b)

survive and reproduce

c)

move to a different environment

31.

According to Darwin's theory of natural selection, the organisms that tend to survive are those that have

a)

the biggest bodies

b)

the ability to change their bodies to fit the environment

c)

variations best suited to their environment

32.

If an organism has good fitness, what does that mean?

a)

It runs fast and has ability to reproduce

b)

It has great strength and the ability to reproduce

c)

It survives and reproduces, passing on its favorable traits to offspring

33.

The theory of use and disuse of organs was given by:

a)

Lamarck

b)

Darwin

c)

Weismann

d)

Hugo de Vries

34.

According to Lamarckism, long necked giraffes evolved because:

a)

nature selected only long necked ones

b)

humans preferred only long necked ones

c)

short necks suddenly changed into long necks

d)

of stretching of necks over many generations by short necked ones

35.

_________, an English biologist published the theory of natural selection, which preaches the survival of the fittest.

a)

Hugo de Vries

b)

George Beadle and Edward Tatum

c)

Charles Darwin

d)

Alfred Russel

36.

Similarity in the bone structure of a human arm, a bulls leg, a bat's wing and a whale fin is_______

a)

Anatomical evidence

b)

Morphological Evidence

c)

Paleontological evidence

d)

Embryological evidence

37.

The function of the Urinary System is to...

a)

filter wastes from your blood.

b)

move food around your systems.

c)

regulate the amount of water in your cells.

d)

help the body move.

38.

The kidney's job is to...

a)

make bile.

b)

store urine.

c)

filter waste from blood.

d)

release urine outside of the body.

39.

What is #1?

a)

bladder

b)

kidney

c)

ureter

d)

urethra

40.

What is #2?

a)

bladder

b)

kidney

c)

ureter

d)

urethra

41.

What is #3?

a)

bladder

b)

kidney

c)

ureter

d)

urethra

42.

What is #4?

a)

bladder

b)

kidney

c)

ureter

d)

urethra

43.

Which organ produces urea?

a)

Liver

b)

Pancreas

c)

Kidneys

d)

Bladder

44.

Why does the volume of urine produced by a person change throughout the day?

a)

The kidneys only work at night.

b)

The bladder produces more urine when it is full.

c)

The amount of water intake, sweating, and temperature affect how much water is excreted.

d)

The body produces more urea at night than during the day.

45.

An increase in water intake (drinking water) will increase the amount of urine produced.

a)

True

b)

False

46.

This is the organ that excretes urea

a)

Kidney

b)

Liver

c)

Bladder

d)

Heart

47.

What is the name of the gas that is excreted through the lungs?

a)

Oxygen

b)

Carbon dioxide

c)

Ammonia

48.

The process by which plant cells use energy from the sun to convert carbon dioxide and water into make sugar and oxygen is called __________.

a)

Phototropism

b)

Cellular Respiration

c)

Mitosis

d)

Photosynthesis

49.

Multiple select: What are the products of photosynthesis?

a)

oxygen

b)

water

c)

glucose

d)

carbon dioxide

e)

light energy

50.

Where does photosynthesis occur?

a)

Golgi Body

b)

Chloroplast

c)

Nucleus

d)

Mitochondria

e)

Cell Wall

51.

How does carbon dioxide get into plant cells?

a)

absorbed with water through the leaves

b)

taken in through stomata on the underside of leaves

c)

plants do no take in carbon dioxide

d)

absorbed through roots

52.

Which organelle is responsible making food (carbohydrates/Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

53.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
54.

Which of the following is the word equation for photosynthesis?

a)

carbon dioxide + water --> glucose + oxygen

b)

carbon dioxide + sugar + water --> oxygen

c)

oxygen + water --> carbon dioxide + sugar

d)

carbon dioxide + oxygen + water --> Sugar

55.

Which of the following shows the balanced chemical equation for photosynthesis?

a)

CO₂ + H₂O → C₆H₁₂O₆ + O₂

b)

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

c)

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

d)

6O₂ + 6H₂O → C₆H₁₂O₆ + 6CO₂

56.

Which are features of leaves of xerophytes? (tick all that apply)

a)

thick cuticle

b)

flat leaves

c)

hairs on leaves

d)

raised stomata

57.

Two structures on a plant that work to reduce water loss include

a)

Stomata

b)

Roots

c)

Waxy cuticle on leaves and stems

d)

Stem

58.

What is a correct statement for these results?

a)

Carbon dioxide concentration is a limiting factor at 1

b)

No enzymes are denatured at 3

c)

Light intensity is a limiting factor at 4

d)

Temperature is a limiting factor at 2

59.

Which process removes carbon dioxide from the atmosphere?

a)

Respiration

b)

Combustion

c)

Decomposition

d)

Photosynthesis

60.

What is the name of the green pigment found in chloroplasts?

a)

Palisade

b)

Mesophyll

c)

Chlorophyll

d)

Chloride

61.

Which set of environmental conditions would cause the greatest rate of transpiration in a plant?

a)

Low temperature, high humidity, and no wind

b)

High temperature, low humidity, and windy conditions

c)

High humidity, low temperature, and no wind

d)

Low light intensity, high humidity, and still air

62.

Genes code for

a)

carbohydrates

b)

proteins

c)

lipids

d)

chromosomes

63.

Males have an _____ sex chromosome. They receive their ___ chromosome from their father.

a)

XY, Y

b)

XY, X

c)

XX, X

d)

XX, Y

64.
Which one of the following shows discontinuous variation?
a)
Eye colour
b)
Height
c)
Strength
d)
Weight
65.
Which one of the following shows continuous variation?
a)
Blood group
b)
Height
c)
Male or female
d)
Tongue rolling
66.
What type of graph do we use for discontinuous variation?
a)
A bell-shape
b)
Bar chart
c)
Line graph
d)
Scatter Graph
67.
What shape graph do you see for many examples of continuous variation?
a)
A straight line downwards
b)
A straight line upwards
c)
A bell-shape
d)
A flat line
68.

Which type of data would student height be categorized as?

a)

Categorical

b)

Continuous

c)

Discontinuous

d)

Normal

69.
Differences between members of the same species are called
a)
predators
b)
traits
c)
selections
d)
variations
70.
Which of the following is an example of discontinuous variation?
a)
Weight
b)
blood type
c)
height
d)
Hand span
71.

Which of the following are example(s) of continuous variation?

a)

seed color in peas

b)
height
c)

blood group

d)

body mass

72.

What is the best definition of biodiversity?

a)

The variety of different species and the number of individuals within each species in an ecosyste

b)

The number of plants in a habitat

c)

The variety of abiotic factors in an environment

d)

The total number of animals in an ecosystem

73.

What is the effect of increasing temperature on the rate of photosynthesis in plants?

a)

The rate decreases steadily as temperature increases.

b)

The rate keeps increasing with temperature with no limit.

c)

Temperature has no effect on photosynthesis.

d)

The rate increases up to an optimum temperature, then decreases when enzymes denature.

74.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
75.
What is the ultimate source of energy for life on Earth?
a)
glucose
b)
sunlight
c)
ATP
d)
H2O
76.
What process helps plants make their food?
a)
Respiration
b)
Nutrition
c)
Photosynthesis
d)
Digestion
77.
What are the products of photosynthesis?
a)
Carbon Dioxide & Water
b)
Glucose & Oxygen
c)
Water & Oxygen
d)
Glucose & Carbon Dioxide
78.
What structure within a plant cell does photosynthesis?
a)
Sap vacuole
b)
Cytoplasm
c)
Chloroplasts
d)
Chlorophyll
79.
What is the name of the green pigment that helps with photosynthesis?
a)
Chlorophyll
b)
Green pigment
c)
Chloroplasts
d)
Mucus
80.
If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars (rate of photosynthesis)?
a)
Sugar production will likely increase.
b)
Sugars will not be produced.
c)
The rate of sugar production will decrease .
d)
Fewer sugars will be produced at first, but then the plant will recover.
81.

What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.

a)

oxygen, glucose, sunlight

b)

sunlight, oxygen, water

c)

water, oxygen, carbon dioxide

d)

carbon dioxide, sunlight, water

82.

Which of the following is a byproduct of photosynthesis?

a)

oxygen

b)

carbon dioxide

c)

sugar

d)

glucose

83.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
84.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

light + carbon dioxide + water --> glucose + oxygen

b)

carbon dioxide + sugar + water --> oxygen + light

c)

oxygen + light + water --> carbon dioxide + sugar

d)

carbon dioxide + oxygen + water --> Light+ Sugar

85.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
86.
Which of these conditions would decrease the rate of photosynthesis in a plant?
a)
Above average precipitation
b)
Changing the daylight hours from 14 hrs to 10 hrs
c)
Changing the CO2 concentration from 380 ppm to 410 ppm
d)
All of these choices
87.

How does carbon dioxide get into the leaves of a plant?

a)

It's absorbed by the roots

b)

It's made in a chemical reaction in the stem

c)

It enters through the stomata in the leaves

d)

It goes through the flowers

88.

How does most of the water needed by the plant get into its leaves?

a)

It enters through the stomata

b)

The roots absorb it and then it travels up the stem

c)

It's made during a chemical reaction in the leaf

d)

The flowers capture water and deliver it to the leaves

89.

Which organelle is responsible making food (Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

90.

Urine leaves the Kidney via the _____________ to be stored

a)

URETERS

b)

BLADDER

c)

URETHRA

91.

What is the function of the urinary system?

a)

To create solid waste

b)

To pump blood

c)

To filter blood and create urine

d)

To only create urine

92.

The urinary system removes toxins and waste from our body through...

a)

Filtering out blood

b)

Urine

c)

Homeostasis

d)

Producing hormones

93.

Which structure is labelled "A"?

a)

Urethra

b)

Ureter

c)

Kidney

d)

Lung

94.

How does urine leave the body?

a)

Through the ureter

b)

Through the bladder

c)

Through the urethra

d)

Through the kidney

95.

Which structure is labelled "B"?

a)

Urethra

b)

Ureter

c)

Kidney

d)

Vein

96.

Which structure is labelled "D"?

a)

Urethra

b)

Ureter

c)

Bladder

d)

Artery

97.

Which structure is labelled "C"?

a)

Urethra

b)

Ureter

c)

Bladder

d)

Heart

98.

Who would have a longer urethra?

a)

Males

b)

Females

c)

They're both the same

d)

Females don't have one

99.
Vascular tissue that transports water and minerals UPWARDS from a plant's roots is know as ______.
a)
Chlorophyll
b)
Phloem
c)
Stomata
d)
Xylem
100.
The plant transport system are made up of ____ types of tubes.
a)
1
b)
2
c)
3
d)
many
101.
what is the function of root hair?
a)
it is place to store the food
b)
it has large surface area to absorb more water
102.
Water vapour exits a plant leaf by
a)
the stomata
b)
the epidermis
c)
the palisade cells
d)
the spongy mesophyll
103.

Where is xylem found in the plant?

a)

leave -> roots -> stem

b)

roots -> stem -> leaves

c)

root hairs -> leaves -> veins

d)

stem -> roots

104.
Transpiration is
a)
the movement of water through a plant from the roots up the stem
b)
the loss of water from the leaves of a plant by the process of evaporation
c)
the flow of water into plant roots by osmosis from the soil
d)
the process of minerals and sugars moving through plant veins
105.

Which of the following indicates the pathway of water through a plant?

a)

root hair cell --> xylem --> stomata

b)

stomata --> root hair cell --> xylem

c)

xylem --> stomata --> root hair cell

106.

What is the function of waxy cuticle on the leaves surface?

a)

Provide water for the plant through the leaves

b)

Reduce the loss of water from the plants by evaporation

c)

Protect the plants from danger

107.

Transpiration process in plants occur

a)

at night

b)

during daytime

108.

Specific type of plant tissue that transports food (sugar) made in the leaves to the entire plant

a)

vascular plant

b)

nonvascular plant

c)

xylem

d)

phloem

109.

Select all of the environmental factors that would increase transpiration.

a)

Increased humidity

b)

Increased wind speed

c)

Increased temperature

d)

Decreased surface area

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