WJEC Biology Unit 1
Assessment for learning 1.5 (a,b,c,d,e)
What is the word equation for photosynthesis?
Light
Carbon Dioxide + Water----------------- Glucose + Oxygen
Chlorophyll
What is the green pigment in leaves that absorbs light energy?
Chlorophyll
What are the limiting factors of photosynthesis?
Light Intensity and Temperature
How do the following limiting factors affect the rate pH photosynthesis:
Temperature? The higher the temperature then typically the greater the rate of
photosynthesis.
Carbon dioxide concentration? An increased concentration of carbon dioxide gives an
increased rate of photosynthesis.
Light intensity? As the light intensity increases( distance between lamp and plant
decreases).
What is sodium hydroxide used for in photosynthesis experiments?
What happens at each stage of testing a leaf for starch:
Boiling the leaf in water?
Kills the leaf.
Boiling the leaf in ethanol?
Allows the iodine solution to get in the leaf’s cells.
Rinsing the leaf in water?
Dropping iodine on the leaf?
It will turn blue-black.
What is the glucose produced by photosynthesis used for?
Plants trap the light with their leaves.
What are guard cells?
,Each of a pair of curved cells that surround a stoma.
What are stomata?
Is a pore found in the epidermis of leaves.
When are stomata open?
It is open during the day.
When are stomata closed?
It is closed during the night.
WJEC Biology Unit 1
Assessment for learning 1.4 (j,l)
Describe how the structures of the following blood vessels helps their functions:
Artery? Tick outer the wall;
Carry blood under a higher pressure;
Capillary? Very small;
Made by a single layer of cell;
A single red blood cell can fit ;
Vein? Thin layer of muscle;
Large lumen;
Artery carry blood to heal to all regions of the body;
List the advantages and disadvantages of the following treatments for heart disease:
Advantages Disadvantages
Statins Lowering the cholesterol; Muscle pain;
Angioplasty Reduce heart muscle damage Narrowing the arteries
Exercise Control your weight Hurts the heart
Diet Provide important vitamins Bad for physical health
WJEC Biology Unit 1
Assessment for learning 1.4 (a,b,c,d,e,f,g,h,i,k)
,Draw and label a red blood cell
Draw and label a white blood cell
What is the function of each of the parts that make up blood:
Red blood cells?
, Carry oxygen from the lungs
White blood cells?
Defend the body against infections and diseases
Platelets?
Stop the bleeding
Plasma?
Carries water, salts, enzymes.
What is the heart made of?
It's made of a cardiac muscle, blood vessels and a connective tissue.
What is the function of the heart?
Pump the blood around the body.
What is the function of the coronary artery?
Coronary arteries carry the blood to the heart.
Which types of blood vessels carry blood away from
the heart, towards the organs?
Arteries
Which types of blood vessels carry blood away from
the organs, back toward the heart?
Blood vessels
Which type of blood vessel carries blood through the
tissues and organs, allowing oxygen to diffuse out of the
blood and carbon dioxide to diffuse into the blood?
Capillaries
What is the function of the valves in the heart?
Prevent the backward flow of blood.
Humans have a double circulatory system.
What is a double circulation?
When the blood passes through the circuit twice.
What are the two circulations in humans called?
Pulmonary circulation
Systemic circulation
What diffuses out of the blood into the cells flowing
Assessment for learning 1.5 (a,b,c,d,e)
What is the word equation for photosynthesis?
Light
Carbon Dioxide + Water----------------- Glucose + Oxygen
Chlorophyll
What is the green pigment in leaves that absorbs light energy?
Chlorophyll
What are the limiting factors of photosynthesis?
Light Intensity and Temperature
How do the following limiting factors affect the rate pH photosynthesis:
Temperature? The higher the temperature then typically the greater the rate of
photosynthesis.
Carbon dioxide concentration? An increased concentration of carbon dioxide gives an
increased rate of photosynthesis.
Light intensity? As the light intensity increases( distance between lamp and plant
decreases).
What is sodium hydroxide used for in photosynthesis experiments?
What happens at each stage of testing a leaf for starch:
Boiling the leaf in water?
Kills the leaf.
Boiling the leaf in ethanol?
Allows the iodine solution to get in the leaf’s cells.
Rinsing the leaf in water?
Dropping iodine on the leaf?
It will turn blue-black.
What is the glucose produced by photosynthesis used for?
Plants trap the light with their leaves.
What are guard cells?
,Each of a pair of curved cells that surround a stoma.
What are stomata?
Is a pore found in the epidermis of leaves.
When are stomata open?
It is open during the day.
When are stomata closed?
It is closed during the night.
WJEC Biology Unit 1
Assessment for learning 1.4 (j,l)
Describe how the structures of the following blood vessels helps their functions:
Artery? Tick outer the wall;
Carry blood under a higher pressure;
Capillary? Very small;
Made by a single layer of cell;
A single red blood cell can fit ;
Vein? Thin layer of muscle;
Large lumen;
Artery carry blood to heal to all regions of the body;
List the advantages and disadvantages of the following treatments for heart disease:
Advantages Disadvantages
Statins Lowering the cholesterol; Muscle pain;
Angioplasty Reduce heart muscle damage Narrowing the arteries
Exercise Control your weight Hurts the heart
Diet Provide important vitamins Bad for physical health
WJEC Biology Unit 1
Assessment for learning 1.4 (a,b,c,d,e,f,g,h,i,k)
,Draw and label a red blood cell
Draw and label a white blood cell
What is the function of each of the parts that make up blood:
Red blood cells?
, Carry oxygen from the lungs
White blood cells?
Defend the body against infections and diseases
Platelets?
Stop the bleeding
Plasma?
Carries water, salts, enzymes.
What is the heart made of?
It's made of a cardiac muscle, blood vessels and a connective tissue.
What is the function of the heart?
Pump the blood around the body.
What is the function of the coronary artery?
Coronary arteries carry the blood to the heart.
Which types of blood vessels carry blood away from
the heart, towards the organs?
Arteries
Which types of blood vessels carry blood away from
the organs, back toward the heart?
Blood vessels
Which type of blood vessel carries blood through the
tissues and organs, allowing oxygen to diffuse out of the
blood and carbon dioxide to diffuse into the blood?
Capillaries
What is the function of the valves in the heart?
Prevent the backward flow of blood.
Humans have a double circulatory system.
What is a double circulation?
When the blood passes through the circuit twice.
What are the two circulations in humans called?
Pulmonary circulation
Systemic circulation
What diffuses out of the blood into the cells flowing
