Quiz about Science 8 Final Review - Cells and Systems

Question 1

Which of the above statements are true of the living things shown above?

Accepted Answer

B and D only

Answer

A and B only

Answer

A and C only

Answer

C and D only

Question 2

These organisms can be grouped together into one category because they

Accepted Answer

can reproduce

Answer

need carbon dioxide, food and water

Answer

move freely from one place to another

Answer

live on land

Question 3

Fire is living because it has 5 of the 6 characteristics of life.

Accepted Answer

False

Answer

True

Question 4

Which of the following is NOT a characteristic of all living things?

Accepted Answer

ability to move

Answer

growth and development

Answer

response to the environment

Answer

ability to reproduce

Question 5

Which of the following statements about the organism below is NOT correct?

Accepted Answer

It has some cells that are surrounded by cell walls.

Answer

It has many cells of various shapes and sizes.

Answer

It has cells which contain nuclei that pass hereditary materials down.

Answer

It has different cells to carry out different functions.

Question 6

The following are all characteristics of life EXCEPT:

Accepted Answer

breathe

Answer

grow

Answer

use energy

Answer

eliminate waste

Question 7

If a capital letter "G" were placed upright under the microscope, which of the images above correctly represents how it will appear when looking through the microscope?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 8

Match the letters A, B, C and D to the steps above in order to observe the specimen clearly.

Accepted Answer

D, B, A, C

Answer

A, D, B, C

Answer

A, C, D, B

Answer

D, B, C, A

Question 9

Which one of the following sets of eyepieces and objective lens should Natasha choose in order to view the entire specimen?

Accepted Answer

Eyepiece - A

Objective Lens - Q

Answer

Eyepiece - A

Objective Lens - P

Answer

Eyepiece - A

Objective Lens - R

Answer

Eyepiece - B

Objective Lens - R

Question 10

What is best used as an adjustment on a microscope to bring a specimen into focus at high power?

Accepted Answer

Fine focus knob

Answer

Coarse focus knob

Answer

Objective lens

Answer

eyepiece

Question 11

Which characteristic do single-celled organisms and multicellular organisms have in common?

Accepted Answer

Both have a way to get rid of waste materials.

Answer

Both have cells with specialized functions for each life process.

Answer

Both perform all life processes within one cell.

Answer

Both are able to make food from sunlight.

Question 12

Fungi and bacteria are both single-celled organisms. What do they most likely have in common?

Accepted Answer

Both fungi and bacteria can carry out all life functions in their one cell.

Answer

Both fungi and bacteria are large organisms.

Answer

Both fungi and bacteria need sunlight and nutrients from the soil to be able to grow.

Answer

Both fungi and bacteria are highly specialized to do only one job so they must work with other cells to obtain food.

Question 13

Which is the correct term for a specialized structure in a cell?

Accepted Answer

organelle

Answer

organ

Answer

tissue

Answer

system

Question 14

The control centre for the cell is the

Accepted Answer

nucleus

Answer

mitochondria

Answer

cytoplasm

Answer

vacuole

Question 15

The powerhouse of the cell (the part where food is converted into energy) is called the

Accepted Answer

mitochondria

Answer

nucleus

Answer

cytoplasm

Answer

cell wall

Question 16

If a cell has chloroplasts, it is a(n)

Accepted Answer

plant cell

Answer

real cell

Answer

animal cell

Answer

multi-cellular organism

Question 17

Based on the diagram, which one of these statements is CORRECT?

Accepted Answer

This is a plant cell since it has a cell wall

Answer

This is a plant cell since it has a nucleus.

Answer

This is an animal cell since there is no chloroplast.

Answer

This is an animal cell since there is a cell membrane.

Question 18

Identify the part labelled C and its function.

Accepted Answer

It is the cell membrane. It allows only certain substances to pass through.

Answer

It is the cell membrane. It supports the cell and gives it a regular shape.

Answer

It is the cell wall. It supports the cell and gives it a regular shape.

Answer

It is the cell wall. It allows only certain substances to pass through.

Question 19

Which of the following parts of the cells have been matched correctly to the information provided in the table below?

Accepted Answer

an only be found in plant cells - A, F

Can be found in both plant and animal cells - C, D, E

Allow some substances to pass through the cell - D

Answer

Can only be found in plant cells - C

Can be found in both plant and animal cells - A,B,E

Allow some substances to pass through the cell - F, D

Answer

Can only be found in plant cells - B, C

Can be found in both plant and animal cells - A,E

Allow some substances to pass through the cell - F, D

Answer

an only be found in plant cells - A, B

Can be found in both plant and animal cells - C, D, E, F

Allow some substances to pass through the cell - F

Question 20

Osmosis occurs until

Accepted Answer

water concentration is equal inside and outside the cell

Answer

all the water has been removed from the cell

Answer

the cell runs out of energy

Answer

all the solute has been removed from the cell

Question 21

Cells placed in saltwater will

Accepted Answer

shrink because of osmotic movement of water from the cell to the saltwater

Answer

expand because of osmotic movement of water from the saltwater to the cell

Answer

shrink because of movement of salt from the cell to the saltwater

Answer

expand because of movement of salt from the saltwater to the cell

Question 22

Which one of the following best explains the above observation?

Accepted Answer

Only Particle B can move into the cell.

Answer

Only Particle A can move into the cell.

Answer

Particles A and B can move into the cell.

Answer

Particles A and B can move into and out of the cell.

Question 23

What kind of membrane is shown?

Accepted Answer

selectively permeable

Answer

permeable

Answer

impermeable

Answer

non-permeable

Question 24

Which solution had the highest sugar concentration?

Accepted Answer

Solution A because water left the cell to equalize the concentration inside and outside the cell

Answer

Solution A because water entered the cell to equalize the concentration inside and outside the cell.

Answer

Solution C because water left the cell to equalize the concentration inside and outside the cell

Answer

Solution C because water entered the cell to equalize the concentration inside and outside the cell.

Question 25

What is the function of cell A?

Accepted Answer

transport nutrients and waste

Answer

transmit signals

Answer

digest food

Answer

convert sunlight to nutrients

Question 26

Which one of the cells resembles a nerve cell?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 27

What type of body tissue is responsible for transferring signals in the body?

Accepted Answer

Nerve tissue

Answer

Epithelial tissue

Answer

Muscle tissue

Answer

Blood tissue

Question 28

Which of the following tissues is made up of cells that contract and relax to move substances through the body and help the body move? Cells have many mitochondria as they use lots of energy.

Accepted Answer

Muscle

Answer

Epithelial

Answer

Nervous

Answer

red blood cells

Question 29

Flat, oval and thin cells that have large nuclei so they form many layers to protect you...

Accepted Answer

epithelial cell

Answer

bone cell

Answer

Muscle cell

Answer

red blood cell

Question 30

Which series below shows the levels of organization for an organism from the least complex to the most complex?

Accepted Answer

organelles > cells > tissues > organs > systems

Answer

systems > cells > tissues > organs > organelles

Answer

cells > tissues > organelles > organs > systems

Answer

organelles > cells > organs > tissues > systems

Question 31

How does food move through your digestive system?

Accepted Answer

muscle movements called peristalsis

Answer

by gravity pulling it down

Answer

when we eat more food, it forces the rest down

Answer

expansion and contraction of the diaphragm

Question 32

The correct order of food passage through the digestive system is

Accepted Answer

esophagus, stomach, small intestine, large intestine

Answer

esophagus, small intestine, large intestine, stomach

Answer

stomach, small intestine, large intestine, esophagus

Answer

esophagus, stomach, large intestine, small intestine

Question 33

At about what time was Clara's digested food first absorbed into the bloodstream?

Accepted Answer

11:00 am

Answer

7:00 am

Answer

7:03 am

Answer

8:45 pm

Question 34

How does saliva in the mouth help to digest food?

Accepted Answer

The food is broken down into simpler substances using enzymes

Answer

We can taste the food

Answer

Digested food is absorbed by the saliva

Answer

it raises the temperature of the stomach to speed up chemical reactions

Question 35

What is the main function of villi?

Accepted Answer

They absorb nutrients into the bloodstream

Answer

They move food from the stomach to the small intestine

Answer

They absorb water from chyme

Answer

They move food from the small intestine to the large intestine

Question 36

How does the heart work?

Accepted Answer

It pumps blood first to the lungs, back to the heart and then around the rest of the body.

Answer

It pumps blood first to the rest of the body, back to the lungs and then to the heart.

Answer

It pumps blood around the rest of the body, back to the heart and then to the lungs,

Question 37

Which blood sample (A, B, C or D) was most likely taken from P of the circulatory system above?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 38

Which of the following is true about arteries and veins?

Accepted Answer

Veins carry blood towards the heart

Answer

Arteries carry blood towards the heart

Answer

Veins carry oxygen rich blood

Answer

Arteries carry oxygen depleted blood

Question 39

Based on the graph above, which one of the following statements is true?

Accepted Answer

The resting heart rate of a trained athlete is lower than that of an untrained athlete.

Answer

The trained athlete is using less energy to complete the exercise.

Answer

The trained athlete is using more oxygen to complete the exercise.

Answer

The resting heart rate of an untrained athlete is lower than that of a trained athlete.

Question 40

Based on the information above, which volunteer is most likely to have a narrowed blood vessel?

Accepted Answer

Volunteer Y, because their heart beats faster to compensate for the reduced efficiency of oxygen delivery through their vessels

Answer

Volunteer X, because their heart beats slower, which means they are less healthy

Answer

Volunteer X. because running increased their heart rate

Answer

Volunteer Y, because running increased their heart rate

Question 41

State one reason why blood at location B contains more oxygen than blood at location A.

Accepted Answer

because blood at location B comes from the lungs

Answer

because blood at location A goes to the lungs

Answer

because blood at location A comes from the lungs

Answer

because blood at location B goes to the lungs

Question 42

Accepted Answer

Respiratory

Answer

Integumentary

Answer

Nervous

Answer

Circulatory

Question 43

The diagram below represents a demonstration of the breathing process in humans. What structure is represented by the rubber sheet?

Accepted Answer

diaphragm

Answer

lungs

Answer

trachea

Answer

bronchi

Question 44

Which diagram best illustrates the function of an alveolus?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 45

What is the body system that sends and recieves electrical signals from the brain?

Accepted Answer

Nervous System

Answer

Skeletal System

Answer

Muscular System

Answer

Digestive System

Question 46

Where would the nerve impulse start in this reflex arc?

Accepted Answer

E

Answer

A

Answer

C

Answer

D

Question 47

what might be a job of a motor neuron?

Accepted Answer

connecting to a muscle and helping you move

Answer

connecting within the brain to help you make a decision

Answer

sending a message toward your brain from a pain receptor in your skin

Answer

all of these

Question 48

Identify the stimulus..."A person shivers because it is cold outside"

Accepted Answer

Cold temperature

Answer

A person shivers

Question 49

The proper sequence of nerve transmission is

Accepted Answer

Stimulus, Sensory neurons, interneurons in the brain and spinal cord, motor neurons, response

Answer

Response, Sensory neurons, interneurons in the brain and spinal cord, motor neurons, stimulus

Answer

Response, motor neurons, interneurons in the brain and spinal cord, Sensory neurons, Stimulus

Answer

Stimulus, motor neurons, interneurons in the brain and spinal cord, Sensory neurons, response

Question 50

Which best compares the respiratory system to the circulatory system?

Accepted Answer

The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells.

Answer

The respiratory system transports oxygen to cells, while the circulatory system provides oxygen for cells.

Answer

The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste.

Answer

The respiratory system rids the body of waste, while the circulatory system breaks down food for cell energy.

Question 51

How does the digestive system work with all other systems?

Accepted Answer

The digestive system gives the body energy and nutrients

Answer

The digestvie system transports blood to all the other systems

Answer

The digestive system puts oxygen into the body

Answer

The digestive system allows the body to move

Question 52

Which of the following organs are wrongly matched to their functions?

Accepted Answer

B and F

Answer

A and B

Answer

C and E

Answer

D and E

Question 53

What systems do A, B and C belong to?

Accepted Answer

A - Circulatory

B - Skeletal

C - Respiratory

Answer

A - Circulatory

B - Respiratory

C - Skeletal

Answer

A -

Respiratory

B - Circulatory

C - Skeletal

Answer

A - Skeletal

B - Respiratory

C - Circulatory

Question 54

"Asthma and allergies are more common large urban centres which have higher levels of air pollution" What factor most contributing to this phenomena?

Accepted Answer

environment

Answer

genetics

Answer

lifestyle

Answer

infection

Question 55

"Sarah is at higher risk of developing diabetes because her mother and uncle both have type I diabetes." What factor most contributing to this phenomena?

Accepted Answer

genetics

Answer

lifestyle

Answer

environment

Answer

infection

Question 56

"The omicron variant of COVID-19 spreads 6 times faster than the original strain" What factor most contributing to this phenomena?

Accepted Answer

infection

Answer

genetics

Answer

lifestyle

Answer

environment

Question 57

What statement best refelect's the Germ theory?

Accepted Answer

Most diseases are caused by microcorganisms

Answer

Most diseases are caused by mylasia

Answer

Most diseases are caused by the weather

Answer

Most diseases are caused by unkown sources

Question 58

What tool provided the evidence to be able to formulate the germ theory?

Accepted Answer

Microscope

Answer

Telescope

Answer

Drill

Answer

Hammer

Question 59

The bar chart compares the total yearly cost of medical treatment for a disease in a country before vaccines were used and the total yearly cost when vaccines are used.
How much money is saved by the use of vaccines?

Accepted Answer

32 million dollars

Answer

14 million dollars

Answer

16 million dollars

Answer

48 million dollars

Question 60

What is the responding variable in this experiment?

Accepted Answer

average heart rate

Answer

Trial number

Answer

type of exercise

Answer

average heart rate before and after exercise

Question 61

State the general relationship between exercise and heart rate in humans.

Accepted Answer

If a person exercises, then their heart rate will increase

Answer

If a person exercises, then their heart rate will not change

Answer

If a person exercises, then their heart rate will decrease

Answer

Person exercising and heart rate are not related

Science 8 Final Review - Cells and Systems

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