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Biology 7th Grade Test

Total questions: 71

Worksheet time: 2hrs 21mins

Name
Class
Date
1.

Enzymes are protein molecules in which their function is to regulate chemical reactions carried out by all living beings acting as catalysts...

a)

True

b)

False

2.

Enzyme that provides glucose and galactose

a)

Lactase

b)

Lipase

c)

Sapose

d)

Amylase

3.

Which drink contain Lactose:

a)

sugars

b)

water

c)

Lactose Milk

d)

alcohol

4.

Amylase acts on

a)

sugar

b)

pillow

c)

milk

d)

protein

5.

Pepsine enzyme acts on

a)

sugar

b)

protein

c)

nutrient

d)

water

6.

Cell that controls the movement of materials in and out of the cell is...

a)

Cell Membrane

b)

Mitochondria

c)

Cytoplasm

d)

Endoplasmic Reticulum

7.

Cell that control center of the cell is...

a)

Nucleus

b)

Nuclear Membrane

c)

Chloroplasts

d)

Golgi Aparatus

8.

Where is there a high concentration of water?

a)

in the flower

b)

cannot be determined by picture.

c)

in the vase

d)

in the leaves

9.

When a person smells something, what is actually traveling up their nose?

a)

solids 

b)

molecules 

c)

matter

d)

plasma 

10.

Which of the following are examples of active transport? (Select all that apply)

a)

osmosis

b)

diffusion

c)

endocytosis

d)

exocytosis

11.

Which of the following are examples of passive transport? (Select all that apply)

a)

osmosis

b)

diffusion

c)

endocytosis

d)

exocytosis

12.

Which process requires cellular energy to move molecules across the cellular membrane from a region of low concentration to a region of higher concentration?

a)

active transport

b)

diffusion

c)

osmosis

d)

hydrolysis

13.

A biologist diluted a blood sample with distilled water. While observing the sample under a microscope, she noticed the blood cells burst. This bursting is most likely caused by which process?

a)

staining

b)

ingestion

c)

osmosis

d)

active transport

14.

Where is there a low concentration of dye?

a)

at the bottom of cup

b)

in the color

c)

at the top of cup 

d)

no concenteraion gradient

15.

What is Equilibrium?

a)

a large  amount of substance on  side of the cell and a small amount on the other side

b)

a small  amount of substance on  side of the cell and a large amount on the other side

c)

equal amount of substance on either side of the membrane  

d)

no particles on either side of the a cell membrane

16.

The picture below is an example of _________________.

a)

osmosis

b)

isotonic

c)

diffusion

d)

active transport

17.

Which of these is a way in which alveoli are adapted to work well?

a)

They are very large

b)

They have thick walls

c)

They have thin walls

d)

There are only a few of them

18.

Gas exchange is needed to supply _____________ to cells and remove __________________

a)

carbon dioxide; oxygen

b)

oxygen; food

c)

oxygen; carbon dioxide

d)

carbon dioxide; water

19.

The movement by diffusion of oxygen and carbon dioxide across a membrane

a)

Ventilation

b)

Breathing

c)

Gas exchange

d)

Respiration

20.

Letter D is pointing to which Respiratory organ?Letter D is pointing to which Respiratory organ?

a)

Alveoli

b)

Diaphragm

c)

Lung

d)

Bronchi

21.

What kingdom includes grasses, trees, and flowers?

a)

Animal

b)

Plant

c)

Fungi

d)

Protist

22.

What kingdom is made up of decomposers like this bread mold?

a)

Animal

b)

Plant

c)

Fungi

d)

Protist

23.

What kingdom is made up of multicellular organisms that must cannot make their own food like a lion?

a)

Animal

b)

Plant

c)

Fungi

d)

Protist

24.

Which one is the name of the five kingdoms?

a)

plants, animals, fungi, monera, bacteria

b)

plants, animals, fungi, monera, protists

c)

plants, animals, fungi, vertebrates, protists

25.

This organism spends its day taking in carbon dioxide and releasing oxygen through its stomata. It never eats but can grow many meters tall.

a)

Fungi

b)

Plantae

c)

Protista

d)

Animalia

26.

The scientific name for an organism is made from the:

a)

class and family name

b)

genus and species name

c)

domain and kingdom name

d)

kingdom and phylum name

27.

The 8 levels of classification, most broad to most specific.

a)

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

b)

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

c)

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

d)

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

28.

Cell division that forms two genetically identical cells?

a)

conjugation

b)

bioremediation

c)

Fission

d)

resistance

29.

A long whiplike structure that helps some bacteria move?

a)

flagella (flagellum)

b)

cilia

c)

tail

d)

virus

30.

The process of heating food to a temperature that kills most harmful bacteria?

a)

decomposition

b)

bioremediation

c)

pasteurization

d)

nitrogen fixation

31.

An agent that causes disease?

a)

antibody

b)

pathogen

c)

mutation

d)

antibiotic

32.

The ability of an organism to resist a virus or infection?

a)

conjugation

b)

pathogen

c)

mutation

d)

immunity

33.

 

Anaerobic means?

a)

needs oxygen to survive

b)

can survive without oxygen

c)

neither of the above

d)

both of the above

34.

Bacteria releases _____________ to cause food poisoning in improperly canned foods.

a)

acids

b)

toxins

c)

antibiotics

d)

antibodies

35.

Which of the following is caused by a bacteria? (Check ALL that apply)

a)

influenza (flu)

b)

pneumonia

c)

tuberculosis

d)

food poisoning

36.

What is the function of the pili?

a)

moving with the bloodstream

b)

defense against antibodies

c)

sticking to surface areas

d)

reproduction

37.

What shape is this virus?

a)

bacteriophage

b)

crystal

c)

cylinder

d)

sphere

38.

What cells carry electrical signals?

a)

Red blood cells

b)

Nerve cells

c)

Sperm cells

d)

White blood cells

39.

 What cell is much larger than other animal cells?

a)

Egg cell

b)

Sperm cell

c)

Leaf cell

d)

Root hair cell

40.

What cell carries the father’s genetic information?

a)

Sperm cell

b)

Egg cell

c)

Leaf cell

d)

Red blood cell

41.

 If the eyepiece lens magnification is 10 and the objective lens magnification is 40 what is the total magnification?

a)

10

b)

40

c)

300

d)

400

42.

Which of these is not a unicellular organism?

a)

Amoeba

b)

Euglena

c)

Protozoa

d)

Red blood cells

43.

The nucleus 

a)

contains genetic material

b)

is for respiration

c)

is for photosynthesis

d)

is for movement

44.

Green pigment that found in plants

a)

Chloroplasts

b)

Chlorophyll

c)

Cytoplasm

d)

MItochondria

45.

These specialised cells contain a large number of chloroplasts for absorbing light

a)

Nerve Cell

b)

Photosynthetic Cell

c)

Smooth Muscle cell

d)

Chlorophyll

46.

Why do nerve cells need dendrites and axons?

a)

To receive a signal from other neurons and send the signal to another cell.

b)

There is no real purpose.

c)

So they don't have to touch other cells.

d)

So they can grab onto infectious objects to destroy them.

47.

What is the name of this specialised cell?

a)

nerve cell

b)

red blood cell

c)

root hair cell

d)

sperm cell

48.

The food that you eat travels from your mouth, down your esophagus, into your stomach, and through your small and large intestines before your body rids itself of solid waste. As the food passes through your body, it is digested, and you get important nutrients from the food. Which of the following is the correct term used to describe a group of body parts working together to perform a specific function?

a)

an organism

b)

A tissue

c)

an organ system

d)

an organ

49.

Which of these structures is unique to an animal cell?

a)

chloroplast

b)

Cell wall

c)

Centrosome

d)

Cytoplasm

50.

What is the function of the cell wall?

a)

to protect and support the cell

b)

to perform different functions in each cell

c)

to prevent water from passing through the cell.

d)

to prevent oxygen from entering the cell

51.

Identify the organelle responsible for the process of photosynthesis

a)

1

b)

3

c)

4

d)

9

52.

What kind of cell is this?

a)

Animal

b)

Plant

c)

Bacteria

d)

Virus

53.

A change in an organism's surroundings that causes it to react is called

a)

a stimulus

b)

a response

c)

development

d)

energy

54.

 A plant grows toward the light. The plant's action is an example of 

a)

reproduction.

b)

a response.

c)

a stimulus.

d)

development

55.

All living organisms are made up of ____.

a)

Cell

b)

Bacteria

c)

Organs

d)

Tissue

56.

What do living things use energy for?

a)

To do things like grow, heal and digest.

b)

To find friends

c)

To succeed in school

d)

To reach their goal

57.

 This stores our genetic information:

a)

DNA

b)

lipis

c)

ATP

d)

flash drives

58.

Which of the following characteristics of living things best explains why humans sweat when they get hot?

a)

maintaining a stable internal environment

b)

growth and development

c)

using energy

d)

ability to reproduce

59.

What is the addictive drug found inside any kind of cigarette?

a)

tobacco

b)

liquid internet

c)

internet

d)

nicotine

60.

What percentage of lung cancer deaths are attributed to smoking.

a)

77%

b)

90%

c)

0%

d)

66%

61.

Smoking causes...

a)

Strokes

b)

Heart Disease

c)

Cancer

d)

All correct

62.

____________ is found in cigarettes and is basically "rat poison".

a)

tar

b)

nicotine

c)

arsenic

d)

tobacco

63.

Emphysema is a disease effecting the:

a)

Air sacs in throat

b)

Capillaries in blood

c)

air sacs in lungs

d)

arteries in blood

64.

What is the main function of the respiratory system?

a)

to provide oxygen and remove carbon dioxide from the body

b)

to break down food and absorb nutrients

c)

to remove oxygen from the body and deliver carbon dioxide

65.

to remove oxygen from the body and deliver carbon dioxide

a)

diapragm

b)

lungs

c)

trachea

66.

What is tube that is also known as your wind pipe?

a)

esophogus

b)

bronchi

c)

trachea

d)

alveoli

67.

The circulatory system works with the ___________ system to provide our body with oxygen and get rid of CO2 (carbon dioxide).

a)

respiratory

b)

digestive

c)

muscular

d)

skeletal

68.

 Which part of the Respiratory System collects air from the environment & heats/moistens the air before entering the body?

a)

lungs

b)

nose

c)

heart

d)

brain

69.

Given the following structures: 1. larynx 2. nasal cavity 3. pharynx 4. trachea Which of the following is the correct order that air would flow during inhalation. 

a)

1,2,3,4

b)

2,3,1,4

c)

2,1,3,4

d)

4,2,3,1 

70.

When you exhale, the diaphragm

a)

moves upwards

b)

moves downwards

c)

flattens

d)

none of the above

71.

What are the names of the air sacs in the lungs where gas exchange takes place?

a)

Alveoli

b)

Bronchi

c)

Bronchioles

d)

Intercostal muscles

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