Science Biology Grade 10 Unit Test

Question 1

Types of Passive transport:

Answer 1

osmosis, Simple diffusion, Facilitated diffusion

Question 2

Types of transport of molecules in a cell

Answer 2

Passive and Active transport

Question 3

What is Passive Transport?

Answer 3

Movement of molecules across a cell membrane with the gradient

Question 4

What is the concentration gradient?

Answer 4

The difference in the concentration of a substance between two areas is called the concentration gradient

Question 5

What is active transport?

Answer 5

Movement of molecules across a cell membrane against a concentration gradient

Question 6

What is solute?

Answer 6

Substance that will be dissolved. Ex. Salt, sugar, sodium

Question 7

What is a solvent?

Answer 7

Substance that is responsible for dissolving solute. Usually water

Question 8

What is ECF?

Answer 8

Extracellular Fluid. Substance that surrounds all living cells. The extracellular fluid provides the medium for the exchange of substances between the ECF and the cells

Question 9

What is Osmosis?

Answer 9

The movement of a solvent through a semipermeable membrane in a cell in order to equalize the concentrations of solute outside and inside the cell

Question 10

Types of environment in the ECF during osmosis.

Answer 10

(Outside the cell)
Hypertonic Environment - High Solute, Low water
Isotonic Environment - water = solute
Hypotonic Environment - High water, low solute

Question 11

What is diffusion?

Answer 11

The movement of substances from area of high concentration to area of low concentration

Question 12

Characteristics of cells:

Answer 12

Cells:

• grow
• move
• take in oxygen/ respire
• excrete waste
• obtain energy
• communicate with the environment
• divide

Question 13

Name the major categories of pipes in the circulatory system

Answer 13

• arteries & arterioles
• veins & venules
• capillaries

Question 14

Arteries carry blood ___________ the heart

Answer 14

away from

Question 15

Blood in arteries is normally _________

Answer 15

oxygenated

Question 16

Blood flows (from big to small) in:
Arteries - \_\_\_\_\_\_\_\_\_ - \_\_\_\_\_\_\_\_\_\_\_

Answer 16

arterioles, capillaries

Question 17

Blood cells in capillaries exchange oxygen and other materials with the ______ and ______

Answer 17

Cells and tissues

Question 18

Vein carry blood _____________ the heart

Answer 18

towards

Question 19

Blood in veins is normally _________

Answer 19

deoxygenated

Question 20

Blood flows (from big to small) in:
Veins - \_\_\_\_\_\_\_\_\_ - \_\_\_\_\_\_\_\_\_\_\_

Answer 20

venules, capillaries

Question 21

What do red blood cells do?

Answer 21

Transport oxygen to the body’s tissues in exchange for carbon dioxide

Question 22

What do white blood cells do?

Answer 22

They help the body fight infection and other diseases.

Question 23

What are platelets responsible for?

Answer 23

Principal function is to prevent bleeding

Question 24

What is the name for the protective layer that surrounds the heart?

Answer 24

Pericardium

Question 25

Pericardium is also _______ and ________ tissue in the heart

Answer 25

nervous and connective tissue

Question 26

Label the heart diagram

Answer 26

-

Question 27

Primary function of the circulatory system is to...

Answer 27

To carry oxygen, nutrients, and hormones to cells, and remove waste products, like carbon dioxide

Question 28

Primary function of the digestive system is to...

Answer 28

Take food and turn it into energy and nutrients to allow the body to function, grow, and repair itself

Question 29

The endocrine system is responsible for...

Answer 29

Releasing hormones that help control mood, growth and development, the way our organs work, etc.

Question 30

What is the excretory system responsible for?

Answer 30

(a.k.a. urinary system) Removing wastes and retaining the proper amounts of water, salts, and nutrients

Question 31

Integumentary system...

Answer 31

(skin) Protect the body from various kinds of damage, control water loss & regulate temperatures

Question 32

The primary function of Lymphatic system is to...

Answer 32

(a.k.a. immune system) Protects the body from harmful substances

Question 33

Muscular system is responsible for...

Answer 33

For movement. Happens because of muscle contraction.

Question 34

What is the Nervous system responsible for?

Answer 34

Receiving information about the environment around us and generating responses to that information. Also, responsible for controlling voluntary and involuntary actions.

Question 35

The skeletal system...

Answer 35

Works as a support structure for your body

Question 36

Label the digestive system

Answer 36

-

Question 37

Label the respiratory system

Answer 37

-