Ch.4.2

Question 1

In _____________________ _______________, there are many _______________ types of cells. Each type carries out a _______________ job.
For example, in our bodies, there are _______________ of different types of cells.

Answer 1

Multicellular organisms, different, particularly, hundreds

Question 2

Some cells are ______________________ for _______________ _______________, some for _______________, and some for _______________ _______________ _______________ _______ _______________ etc.

Answer 2

Specialised , carrying messages, movement, carrying oxygen around the body

Question 3

Different types of _______________ cells all come from _______________ _______________, which come from _______________ _______________.

Answer 3

Specialised, stem cells, bone marrow

Question 4

Stem cells can _______________ into different types if cells. Cells become _______________ to perform a _______________ _______________.

Answer 4

Differentiate, specialised, particular function

Question 5

The process of cells becoming specialised is called _______________ _______________.
For example a stem cell differentiating into _______________ cells/ _______________ cells/ _______ ___________ cells

Answer 5

Cell differentiation

Nerve, muscle, red blood

Question 6

There is a variety of _______________ and _______________ of cells.
The _______________ and _______________of the cell are closely related to its _______________.

Answer 6

Shapes, sizes

Shape, size, function

Question 7

Nerve cells are _______________ and have _______________ _______________.
This enables them to _______________ _______________ ______________________ the _______________.

Answer 7

Long, many branches

Carry messages throughout the body

Question 8

Skin cells are _______________ and _______________ _______________. This makes them a _______________ ____________________ _______________ for the body.

Answer 8

Flat, close together

Good protective layer

Question 9

Fat cells store so much fat that the _______________ is pushed to the ___________ _______________.
The _______________ _______________ of fat helps the body _______________ _______________.

Answer 9

Nucleus, cell membrane

Large store, keep warm

Question 10

Transporting cells in plants are _______________ and _________________________. They __________________ _______________, _______________ and _______________ throughout the plant.

Answer 10

Long, tube-shaped

Transport water, nutrients and minerals

Question 11

Leaf cells _______________ ____________ __________________ for the plant to carry out _____________________.

Answer 11

Contain many chloroplasts

Photosynthesis

Question 12

Root hair cells _______________ the _______________ __________ of the _____________ ______ _______________ with the _______________, so that more _______________ and _______________ can be _______________.

Answer 12

Increase, surface area, root in contact, soil, water, minerals, absorbed

Question 13

Multicellular organisms are _______________ _______________.
The different types of _______________ cells in an _______________ must _______________ _______________ ____________________ _______________.
At the same time, they all _______________ _______________ to ensure the organism _______________ ___________ and ___________ _____________.

Answer 13

Highly organised
Specialised, organisms, perform their individual functions
Work together, functions well, stays alive

Question 14

Level of organisation:

___________->________ ______________->_____________-> _______________-> ___________________

Answer 14

Cell
Tissue
Organ
System
Organism

Question 15

Tissues are groups of _______________ _______________ _______________ _______________.

Answer 15

Similar cells working together

Question 16

Human tissues:
_______________ tissue for _______________
_______________ tissue for _______________ _______________ in the body
_______________ tissue for _______________

Answer 16

Muscle, movement
Nerve, carrying messages
Bone, support

Question 17

Plant tissues:
_______________ tissue for _______________ _______________, _______________ and _______________
_______________ tissue for _______________

Answer 17

Vascular, absorbing water, nutrients and minerals

Epidermal, protection

Question 18

Individual tissues do not work alone; they group together to form an _______[a]________. For example, the heart is an organ that consists of _______________ _______________ __________________, _______________ ______________and _______________ ________________.
All of the tissues work together and _______________ the _______________ to _______________ _______________ _______________the _______________.

Answer 18

Organ
Heart muscle tissue, nerve tissue, blood tissue
Enable the heart to pump blood around the body

Question 19

List 9 organs in the human body.

Answer 19

Eye, brain, nose, liver, ear, lung, heart, skin, stomach

Or any other acceptable answers

Question 20

Functions of the liver:

1. _______________ ____________ _____________ _______________
2. _____________________
3. _______________ _______________ _______________ and _______________ _______________ _______ ________________ __________ _____ __________ _______________
4. _______________ (any chemical reaction)
5. _______________ production

Answer 20

Controls blood glucose level
Detoxification
Storing excess nutrients, converting nutrients into compact form to put aside
Metabolism
Heat

Question 21

The cells of a liver are _______________ _______________ as it has so many functions to carry out.

Answer 21

Tightly packed

Question 22

Organs in plants:
1.
2.
3.
4.

Answer 22

Flower
Leaf
Stem
Root

Question 23

A stem in a plant consists of _______________ _______________ and _______________ _______________.

Answer 23

Vascular tissue, epidermal tissue

Question 24

Different organs also have different _______________ for different _______________.
For example liver tissues are _______________ _______________ while there is much _______________ _______________ in lung tissues.

Answer 24

Arrangements, functions

Tightly packed, empty space

Question 25

A group of organs that work together is called a _______________. For example, the _______________, _______________ and _______________ are involved in _______________.

Answer 25

System | Stomach, intestines, liver, digestion

Question 26

``` Systems in the human body: 1. 2. 3. 4. 5. 6. 7. 8. ```

Answer 26

``` Breathing Reproductive Digestive Nervous Circulatory Urinary Skeletonal Muscular ```