Presentation on theme: "1 Function Cellular Organelles Cells 3 4 A cell is a basic unit of structure and function of life. Cells make up living things and carry out activities."— Presentation transcript:
4 A cell is a basic unit of structure and function of life. Cells make up living things and carry out activities that keep a living thing alive. Your body is made up of specialized cells which carry out the processes needed for life
5 Genetic material ◦ Contains the material for life (DNA) Cytoplasm fills cell interior – Liquid ◦ Contains organelles sugars, amino acids Plasma (cell) membrane encloses the cell – It is like the cells skin
8 Cytoplasm Not an organelle, suspends the organelles Cell Membrane Nucleus Mitochondria Endoplasmic Reticulum (ER) Golgi Bodies Vacuoles
9 Gel-like substance which holds all the cell components together Made mostly of water Place where many chemical reactions occur
10 The flexible double-layered “skin” of the cell Just like our skin holds us together, the cell membrane holds the cell and its components together It also allows the movement of substances into and out of the cell
11 Controls the cell – akin to our brains controlling us Holds the genetic material (DNA) which is stored on Chromosomes Directs activities of the cell Usually one per cell, some cells have several (muscle) while other have none (Red Blood Cell) Spherical in shape
12 DNA of eukaryotes is divided into linear chromosomes. ◦ Contains all the information needed for life (genes) ◦ We have 23 pairs = 46 Total, half from mom and half from dad
13 "Powerhouse of the cell" – Uses Glucose to provide cells with energy (Cellular Respiration) Glucose + Oxygen Carbon Dioxide + Water + Energy Cells that use a lot of energy have more Structure - outer and inner membranes
14 ◦ Network of transportation tubes which transport cellular substances around the cell (akin to a subway network transporting people from place to place) ◦ Location where some proteins are made
15 ◦ Collect and process materials to be removed from the cell ◦ Create and secrete mucus which is used as lining for the intestine and stomach
16 Large vacuoles are found in plants while animals have small vacuoles Contain unwanted substances for removal Maintaining internal pressures (Plant)
17 Chloroplasts Central vacuole Cell wall
18 Chloroplasts are larger and more complex than mitochondria Contain chlorophyll which gives plants their green colour and also allows them to absorb light to be used to create sugar in the process of photosynthesis
19 Performed in the Chloroplasts of plant cells Carbon Dioxide + Water + Light Energy Glucose (Sugar) + Oxygen
20 All energy starts with plants? Plants make energy through photosynthesis? Sugar is energy?
21 Within plant cells, photosynthesis takes place to produce glucose (sugar) The sugar is then used within the mitochondria (cellular respiration) of both plants and animals How do the animals obtain the glucose?
22 It’s a Cycle!! The products of photosynthesis are the reactants of cellular respiration The products of cellular respiration are Are the reactants of photosynthesis YOU CAN’T HAVE ONE WITHOUT THE OTHER!! Cellular Respiration Glucose + Oxygen Carbon Dioxide + Water + Energy Carbon Dioxide + Water + Light Energy Glucose (Sugar) + Oxygen Photosynthesis
23 All energy starts with plants? Plants make energy through photosynthesis? Sugar is energy?
24 Plant cells usually have one large vacuole Maintains the cells pressure keeps the plants stems and leaves firm Can be used for storage of wastes to be removed
25 Found just outside the cell membrane in plant cells Hard structure made of cellulose (a kind of sugar) Provide support and protection