Cell Specialisation Flashcards

1
Q

What is the function of mitochondria?

A

Release energy through respiration

Mitochondria are known as the powerhouse of the cell.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name two structures present only in plant cells.

A
  • Cell wall
  • Chloroplasts
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

In which types of cell would you find mitochondria?

A

Animal cells and plant cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe the function of the cytoplasm.

A

Site of metabolic processes and suspends organelles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Define biconcave.

A

Describes a shape with a dip that curves inwards on both sides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are ova?

A

Eggs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How is a cell adapted to its function?

A

By having specialized structures to allow it to perform specific tasks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the function of sperm cells?

A

To fertilize the ovum (egg cell)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the role of mitochondria in sperm cells?

A

To provide energy for movement towards the egg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does the axon do?

A

Transmits electrical impulses away from the nerve cell body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the myelin sheath?

A

An insulating cover along an axon that speeds up electrical impulses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the two main parts of the nervous system?

A
  • Central nervous system (CNS)
  • Peripheral nervous system (PNS)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are nerve impulses?

A

Electrical signals that travel along nerve cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the purpose of the myelin sheath?

A

To insulate electrical impulses and speed up their transmission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the three types of muscle in the human body?

A
  • Smooth muscle
  • Cardiac muscle
  • Skeletal muscle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where is smooth muscle found?

A

In the linings of blood vessels and the iris of the eyes

17
Q

What type of muscle is found in the heart?

A

Cardiac muscle

18
Q

What is the primary function of muscle cells?

A

To contract and move parts of the body

19
Q

Why do muscle cells contain large numbers of mitochondria?

A

Muscular contraction requires a lot of energy

20
Q

What is the function of root hair cells?

A

To increase the surface area for water and mineral absorption

21
Q

What do xylem cells do?

A

Carry water and dissolved minerals from the roots upwards

22
Q

What is transpiration?

A

The gradual release of water vapour from leaves

23
Q

What is the importance of root hairs in plants?

A

They help absorb enough water to survive

24
Q

Fill in the blank: Xylem cells form long tubes that carry water and _______ from the roots upwards.

A

dissolved minerals

25
Q

What is the purpose of phloem cells

A

Carry glucose made in photosynthesis form leaves of a plant to other parts of the plant

26
Q

What is the process that the phloem cell does called?

A

Translocation

27
Q

What is the sugar used for?

A

Release energy for the plant or is stored as starch in cells or in structures suck as the roots of vegetables

28
Q

Name an adaptation of phloem cell

A

They have fewer organelles to allow the sugar to travel easily

29
Q

What is translocation?

A

Movement of sugars made in photosynthesis form leaves of the plant

30
Q

What is cell differentiation?

A

After generalised cells are formed they become specialised as an organism develops this is called cell differentiation