Test 1; ch2, 3, 4. Flashcards Preview

Human Biology > Test 1; ch2, 3, 4. > Flashcards

Flashcards in Test 1; ch2, 3, 4. Deck (30)
Loading flashcards...
1

what are the organelles of a cell?

- Nucleus
- Ribosomes
- Rough Endoplasmic Reticulum
- Smooth Endoplasmic Reticulum
- Golgi body
- Lysosomes
- Mitochondria
- Cilla and Flagella

2

Name the parts of a cell;

- Vessicle
- Lysosomes
- Ribosomes
- Rough Endoplasmic Reticulum
- Smooth Endoplasmic Reticulum
- Plasma Membrane (Cell Membrane)
- Mitochondria
- Golgi Body
- Nucleolus
- Nucleus
- Centrioles
- Cytoplasm
- Cytoskeleton
- Inclusions

3

What does the cell membrane do?

- Forms the boundary of the cell.
- Controls movement of materials into and out of the cell.

4

What does cytoplasm do?

Organelles are suspended and which chemical reactions can occur.

5

What is the function of the Nucleus?

Contains the inherited material that controls the cell's activities.

6

What is the function of the Ribosomes?

Sites for protein manufacture.

7

What is the function of the Endoplasmic Reticulum?

- Surface for chemical reaction
- Transport of materials within the cell
- Storage of materials

8

What is the function of the Golgi Body?

- Concentrates, stores and packages the materials for secretion from the cell.

9

What is the function of the Lysosomes?

Digest material within the cell.

10

What is the function of the Mitochondria?

Make energy available for cell activities.

11

What is the function of the Cilla and Flagella?

Moves particles along the Cell surface or moves the cell.

12

What is the function of the Cytoskeleton?

Maintains cell shape, allows the cell and its organelles to move.

13

What is the function of the Inclusions?

Chemical substances used by, or stored in, the cell.

14

Structure of the body?

Cells > tissues > organs > systems

15

what are cells broken up into?

Individual units;
- Specialised
- Unspecialised

16

what types of tissues are there?

- Muscle; involuntary, voluntary.
- Bone; skeletal.
- Nerve
- Epithelial
- Connective

17

What is epithelial tissue?

A covering or lining tissues. Eg: the lining of the stomach, the pouter layer for the skin.

18

What is connective tissue?

Provides support for the body, helps to hold all the body parts together. Eg: Bones, cartilage, tendons ligaments etc.

19

what is muscular tissue?

- Longsrrands, muscle fibres; Eg. - skeletal, smooth and cardiac muscle.

20

What is involuntary muscle?

- No conscious control; Eg- iris, blood, heart, uterus, wall of stomach.

21

What is nervous tissue?

Nervous tissue is the main tissue component of the two parts of the nervous system; the brain and spinal cord.
Eg.
- specialised cells
- neurons
- spinal cord
- brain

22

Function of the digestive system?

intake, breakdown + absorption of food.

23

Function of the respiratory system?

intake of oxygen and removal of carbon dioxide.

24

Function of the circulatory system?

transport of nutrients, oxygen and wastes to and from the cells.

25

Function of the nervous system?

detection of changes in the environment and porodingation of the body activities.

26

Function of the skeletal?

regulation and coordination of many body functions.

27

Function of the muscular system?

support of/and protection for body parts.

28

What is exocytosis?

contents of a vesicle are pushed out through a cell membrane.

29

What is endocytosis?

form of active transport in which a cell transports molecules.

30

what is active transport?

when a higher concentration moves across the membrane to the lower form of concentration to balance it.