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72 Cards in this Set

  • Front
  • Back

Vertebrates

Vertebrates are animals that have a backbone

Invertebrates

Invertebrates are animals that do not have a backbone

Biology

Biology is the study of living things

Animal Cell and Plant Cell

Cell

Cell

Cell Membrane

Cell Membrane is a skin that surrounds the cell. The cell membrane protects the cell and it controls the things that enter and leave the cell

Cytoplasm

A watery substance that contains many dissolved substances necessary for life. This is also where the chemical reactions necessary for life take place

Nucleus

The nucleus acts as the control centre of the cell.

Large Vacuole

Plant cells have large vacuoles. Vacuoles are spaces in the cytoplasm which store things and give support

Chlorophasts

They hold chlorophyll the green colour plants use to make food

Cell Wall

Plant cells have a cell wall outside the cell membrane. The cell wall gives shape and support

Tissue

A tissue is a group of similar cells with the same function

Organ

An organ is made of many different tissues working together

System

A system is a group of organs working together

Growth

Growth results from cells dividing

Food is needed as

a) Source of energy


b) Material for growth and repair of cells

Carbohydrates

Sugar


Starch


Fibre

Sugar

To Provide Energy.


Found in Fruit, Honey, Milk

Starch

To Provide Energy.


Found in potatoes, pasta and bread

Protein

For growth and repair of cells


to make muscle and hair.


Found in Lean Meat, egg white

Fats

To provide a store of energy


For Insulation


Found in Butter, Milk, Cheese

Vitamin C

For healthy skin and gums


Lack of Vitamin C causes scurvy


Found in Citrus fruits


Vitamin D

To build strong bones and teeth


Lack of Vitamin D causes rickets


Found in Cheese, Milk, Yoghurt

Iron

Needed to make red blood cells


Found in Red Meat, Liver, Cabbage

Calcium

Lack of iron causes anaemia


For healthy bones and teeth


Found in Milk, cheese, Tinned salmon

Test For The Presence of Starch

Iodine Solution


Brown/yellow -> Blue/Black


Test for The Presence of Reducing Sugar (Glucose)

Benedict's solution (+heat)


Blue -> Brick Red

Test for Protein

Sodium Hydroxide Solution+Copper Sulfate Solution (Biuret)


Blue -> Purple

Test for Fat

Brown Paper


Translucent spot

what is the energy in food measured in

The energy in food is measured in Kilojoules

A balanced diet depends on

A balanced diet depends on a person's age, sex and activity level

Water is needed

Water is needed as a solvent and to transport substances

Digestion

Digestion is the breakdown of large, insoluble food molecules into small soluble food molecules

Physical Digestion

where the food is broken down by the teeth and the churning action of the muscles of the digestive system

Chemical Digestion

Where the food is broken down by special chemicals called enzymes

Starch + Amylase =

Maltose+ Amylase

Enzymes

Enzymes are biological catalysts

Eating

Food is taken into the mouth

Digestion

The food is broken down into smaller, soluble molecules

Absorption

The digested food is taken into the bloodstream and carried to the cells where it is used

Excretion

Getting rid of undigested waste as faeves

Mouth

Physical digestion by teeth


Chemical digestion by enzymes

Oesophagus

carries food from mouth to stomach


Stomach

Food is mixed with digestive enzymes and churned

Liver

Produces bile

Pancreas

Produces digestive enzymes

Small Intestine

Completes digestion


digested food absorbed into the bloodstream

Large Intestine

Takes water back into bloodstream

Incisor

Cutting and biting the food

Canine

Tearing food

Premolar

crushing and grinding food

Molar

Crushing and grinding food

All living things need

All living things need energy

Respiration

Respiration is the release of energy from digested food

Equation for Respiration

Food(Glucose) + Oxygen = Energy + Carbon Dioxide + Water

Larynx

Voice Box, Responsible for making sounds

Rings of cartilage

keeps the air tubes open

Lungs

The breathing organ

Diaphragm

A sheet of muscle which moves up and down during breathing causing air to move in and out of the lungs

Trachea

allows air to pass in and out of the lungs

Bronchus

Tube which carries air from the trachea to the lungs

Bronchioles

thin tubes which carry air within the lungs

Alveoli

Tiny air sacs covered by a network of narrow blood vessels. Oxygen and carbon dioxides are exchanged in the alveoli

Gaseous Exchange

Gaseous Exchange occurs when oxygen from the air is swapped with carbon dioxide from the body. During gaseous exchange, oxygen in the air we breathe in, diffuses across the wall of the alveolus into the bloodstream. At the same time, Carbon Dioxide diffuses into the lungs from the bloodstream and is breathed out.

Function of the Circulatory System

The function of the circulatory system is transport

The functions of blood

1) Transport


2) Defense against diseases


3) Constant Body Temperature

Function of Plasma

The function of plasma is to transport substances and heat.

Function of Red Blood Cells

The function of Red Blood Cells is to transport oxygen. Red blood cells contain a red pigment called Haemoglobin

Function of White Blood Cells

The function of White Blood Cells is to defend against diseases.

Function of Platelets

The function of Platelets is to clot blood

Arteries

Thick wall and Small Lumen


Blood is carried under high pressure from the heart


No valves


Carry blood away from heart


Usually contain oxygen rich blood


Veins

Thin wall with large lumen


Blood flow not under pressure


Have valves to prevent backflow of blood


Carry blood to the heart


Usually contain oxygen poor blood

Capillary

a