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Flashcards in Cells and Tissues Deck (17):
0

What is the basic structure of a cell?

Mitochondria, cytoplasm,nucleus and the cell membrane

1

Cells are organised into what three main regions

Plasma membrane
Nucleus
Cytoplasm

2

The nucleus is the control center of the cell, it contains genetic material (DNA)
What are its three regions?

Nuclear membrane, nucleus, chromatin

3

What is the purpose of the nuclear membrane?

Barrier of le nucleus

4

What does a nuclear membrane contain?

Nuclear pores that allow for exchange of material with the rest of the cell.

5

The nucleus contains one or more ______

Nucleoli

6

The nucleus is composed of chromatin which is also composed of

DNA and protein

7

Chromatin is scattered throughout the.....

NUCLEUS

8

Chromatin condenses to form ______ when the cell divides

Chromosomes

9

What is the cell membrane?

A thin semi-permeable membrane that surrounds the cytoplasm of a cell.

10

What does a cell/plasma membrane consist of?

A phospholipid bilayer with embedded proteins.
Also cholesterol and glycoproteins

11

The cell/plasma membrane is a ______ membrane that separates the interior of all cells from the outside environment and basic function is to protect the cell from its surroundings.

Biological

12

What are micro villis?

Finger like projections that increase surface area for absorption.

13

What does a flagellum do?

Propels the cell

14

What are ribosomes made of?

Protein and RNA

15

Mitochondria is the "powerhouse" of the cell. What does it do?

Carries out reactions where oxygen is used to break down food
Provides ATP for cellular energy.

16

Name four tissue types

Epithelial (skin)
Connective (bones) cartilage
Nervous tissue (conductivity) Brain, spinal cord; peripheral nerves
Muscle, skeletal, cardiac and smooth muscle.