Specialised Cells

Question 1

What do we call millions and millions of cells?

Answer 1

Multicellular organism

Question 2

What do multicellular organisms do?

Answer 2

All the cells work together but they do not do the same thing. Cells are specialised

Question 3

What are specialised cells?

Answer 3

Specialised cells means that they have a specific structure to do in the body. Each structure makes them do a better job.

Question 4

How many different types of specialised cells does a human body have and how many in total?

Answer 4

The human body has around 50 trillion cells and 200 different types

Question 5

What are some types of a cells humans have?

Answer 5

Muscle cells, Nerve cells, Blood cells, Fat cells

Question 6

What types of muscle cells are there?

Answer 6

The three types of muscles in our bodies are: voluntary muscles (skeletal muscles), involuntary muscles (smooth muscles) and cardiac muscle.

Question 7

What are skeletal muscles?

Answer 7

They are attached to the bones of your skeleton. These muscles are used for support and movement. We can choose to make these muscles move. They have a striped appearance.

Question 8

What are involuntary muscles?

Answer 8

Involuntary muscles work when we don’t even think about it. Some muscles included are breathing muscles and those that keep our food down. Known as smooth muscles.

Question 9

What do all involuntary and voluntary muscles have?

Answer 9

They have large amounts of mitochondria. This is because these muscles require a lot of energy to keep working. The mitochondria provide the energy.

Question 10

What is a cardiac muscle?

Answer 10

Cardiac muscles make up the heart. Cardiac muscle does not get tired, has a very large amount of mitochondria to keep the heart pumping. Has a striped appearance.

Question 11

What are nerve cells?

Answer 11

The nerve cells make up our brains. They carry information from our brains to other parts of our bodies. Some nerve cells have very long fibres called axons.

Question 12

What are blood cells?

Answer 12

Blood cells contain red and white blood cells.

Question 13

What are red blood cells

Answer 13

Red blood cells carry oxygen from our lungs around our body to the cells. They also carry some of the waste carbon dioxide from the cells back to our lungs.

Question 14

What are white blood cells?

Answer 14

White blood cells are apart of the immune system, they help the body fight infections.

Question 15

What are fat cells?

Answer 15

There are two types, brown fat cells and white fat cells

Question 16

What are brown fat cells?

Answer 16

Brown fat cells produce heat for the body.

Question 17

What are white fat cells?

Answer 17

They are used to store energy, they also form an insulation layer under the skin that helps keep our body at a constant temp

Question 18

What are the different types of plant cells?

Answer 18

Photosynthesis cells, guard cells, structural cells, conduction cells, root hairs.

Question 19

What are photosynthesis cells?

Answer 19

These cells are near the surface of the green parts of stems and leaves have large amounts of chloroplasts. In the chloroplasts is a green chemical called chlorophyll. This traps the suns energy which the plant then uses in photosynthesis

Question 20

What are guard cells?

Answer 20

Guard cells are found in the leave and stems of plants. Guard cells work in pairs to open and close very tiny pores in the leaves called stomata. Gases needed by the plant enter through the open stomata. Unwanted gases leave the same way. Guard cells close the stomata when plants need to reduce water loss.

Question 21

What are structural cells?

Answer 21

The cell walls act as the Skelton of plants. When plants grow, they become bigger and heavier. The cells walls of many cell types, especially the water-conducted cells in the plant stem, become thicker and stronger, providing more support. The wood of the tree trunks is mostly cells with walls that are so thick that the cell has died, the living part of a tree trunk is just inside the bark.

Question 22

What are root hairs?

Answer 22

Root hairs suck in the water

Question 23

What are conduction cells?

Answer 23

Transports water from roots to leave then to stems and roots.