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Flashcards in Biology Deck (65)
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1

Anaphase

4. When the chromosomes separate to opposite ends of the cell

2

Apoptosis

The controlled death of an unused cell

3

Cancer

When a cells ability to commit apoptosis is damaged and it continues to divide

4

Cell wall

A protective layer around the cell membrane that provides the cell with structural support

5

Cell membrane

A protective barrier around the cell

6

Centriole

An organelle composed of protein

7

Chromatin

Is used to package long DNA molecules into compact dense shapes

8

Chromosomes

A thread like structure in the nucleus that carries DNA

9

Connective tissue

Joins and supports structures

10

Cytoplasm

A jelly like nutrient filled substance that fills the cell

11

Cytokinesis

6. The final separation of cytoplasm into two distinct cells

12

Differentiation

The process where a cell changes from one cell type to another. Usually the cell changes to a more specialized type

13

Diffusion

The movement of anything from a region of higher concentration to a region of lower concentration

14

Endoplasmic reticulum

A network of sacs in the cytoplasm of a cell that is important in synthesis

15

Epidermal tissue

Protective outer covering, allows for the exchange of oxygen and carbon dioxide

16

Epithelial tissue

Lines the body and body cavities, cells are packed together tightly to create a strong barrier

17

Ground tissue

Provide support, stores water and nutrients, allows for photosynthesis to occur

18

Interphase

1. When the cell prepares for cell division by growing and by making copies of its organelles and DNA

19

meristematic tissue

Where growth occurs

20

Mesophyll

The two layers of cells inside of a plants leaves

21

Metaphase

3. When the chromosomes line up in the middle of the cell

22

Mitochondria

Supplies energy (parentheses the powerhouse of the cell)

23

Mitosis

When cells are created in the process of cell division

24

Muscle Tissue

Helps you move

25

Nervous Tissue

Responds to stimuli and sends signals

26

Nucleus

The control centre of the cell where DNA is stored

27

Organelles

The structures that perform specific functions within a cell

28

Osmosis

The equalization of concentrations on each side of a membrane

29

Phloem

Moves photosynthesized sugar

30

Photosynthesis

The process in which plants use the energy from sunlight to produce glucose from carbon dioxide and water