Biology

HideShow resource information
  • Created by: eimeart
  • Created on: 08-03-15 12:45
what are the seven characteristics of living things?
Movement,Respiration, Response,Feeding,Excretion,Reproduction and Growth
1 of 33
What is a tissue?
A group of similar cells
2 of 33
What is an organ?
A group of tissues
3 of 33
What is a system?
A group of organs
4 of 33
How do you prepare a Microscope slide?
Place a drop of water on a glass slide. Place the object to be viewed on top of the water. Gently lower the cover-slip onto the slide. Avoid trapping air bubbles. Apply some drops of stain to one side of the cover-slip and draw it across the sample
5 of 33
What is a balanced diet made up of?
The six constituents of a balanced diet are carbohydrates (including fibre), fats, proteins, minerals, vitimains and water.
6 of 33
How do you test for starch?
Iodine turns blue-black
7 of 33
How do you test for protein?
Copper sulfate and sodium hydroxide turns violet
8 of 33
How do you test for reducing sugars?
Benedicts solution turns brick red (must be heated)
9 of 33
How do you test for fats?
Turns brown paper translucent
10 of 33
What is iron needed for?
The production of red blood cells
11 of 33
What are the five stages of digestion?
The five stages of digestion are ingestion, digestion, absorbtion, assimilation and egestion.
12 of 33
What is ingestion?
Ingestion is the taking of food into the mouth.
13 of 33
What is digestion?
Digestion is the breaking down of food.
14 of 33
What is absorption?
Absorbtion is the absorbtion of molecules of food into the blood in the small intestine
15 of 33
What is assimilation?
Assimilation is the taking of food molecules from the blood into body cells.
16 of 33
What is egestion?
Egestion is the passing of undigested food out of the body.
17 of 33
How does the mouth aid digestion?
The mouth chews food and mixes it with enzymes, eg amylase in saliva.
18 of 33
What does the oesophagus do?
The oesophagus carries food to the stomach by muscular action (peristalsis)
19 of 33
What does the stomach do?
The stomach stores and churns food and mixes it with digestive juices. It also produces hydrochloric acid to kill bacteria.
20 of 33
What does the liver do?
The liver produces bile to break down fats
21 of 33
What does the small intestine do?
The small intestine contains enzymes to break down food. Food molecules are absorbed into the blood in the small intestine.
22 of 33
What does the pancreas do?
The pancreas produces enzymes.
23 of 33
What does the large intestine do?
The large intestine passes water into the blood.
24 of 33
What is an enzyme?
An enzyme is a chemical which speeds up a chemical reaction in the body without being used up in the reaction
25 of 33
What does an enzyme act on?
A substrate
26 of 33
What enzyme is used in the digestive system?
Amylase is an enzyme which breaks down starch into maltose.
27 of 33
Whats a vein?
Veins bring blood away from the heart. They have a wider lumen and thinner walls than arteries, and valves to prevent backflow of blood.
28 of 33
Whats an artery?
Arteries carry blood away from the heart. they have a narrow lumen, thick walls and no valves
29 of 33
Whats a cappillary?
Capillaries are thin blood vessels(1 cell thick) that allow substances to pass into and out of the blood. They join veins to arteries.
30 of 33
What is blood made up of?
Plasma, red blood cells, white blood cells and platelets
31 of 33
What is the Heart?
The heart is made of cardiac muscle - a type of muscle which never tires. It contracts to pump blood around the body. It consists of 4 chambers - right & left atriums, right & left ventricles.
32 of 33
What is resperation?
The release of energy from food
33 of 33

Other cards in this set

Card 2

Front

What is a tissue?

Back

A group of similar cells

Card 3

Front

What is an organ?

Back

Preview of the front of card 3

Card 4

Front

What is a system?

Back

Preview of the front of card 4

Card 5

Front

How do you prepare a Microscope slide?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Science resources:

See all Science resources »See all Biology resources »