OCR Additional Science - Unit 3 - Biology

What do Cells contain?

What is the function of Cytoplasm?

What is the function of the Cell Membrane?

What is the function of the Nucleus?

What is the function of the Mitochondria?

What is the function of the Ribosome?

What cells have high levels of Mitochrondia?

Which order do the following go:
Gene
Nucleus
Chromosome

What are genes?

What are Chromosomes?

How many PAIRS of chromosomes do humans have?

What does the DNA control?

What is a DNA molecule made of?

What are the four bases in DNA?

What are the four bases called?

Who formed the model of DNA?

Where is protein made?

How many bases represent 1 amino acid?

What are proteins?

What are the functions of Protein?

What do enzymes act as, and what is their function?

Are enzymes complex?

What can affect the rate of reaction of an enzyme?

Describe the structure of a enzyme.

What can prevent an enzyme from working?

What can cause gene mutations?

What can mutations lead to, protein wise?

What is Aerobic Respiration?

In respiration, what does exercise to?

Equation of Aerobic Respiration:

What is Anaerobic Respiration?

What is the product of Anaerobic Respiration?

Equation for Anaerobic Respiration:

What does your body do after Anaerobic Respiration to prevent cell damage from the product (Lactic Acid)?

LIst advantages of Multicelluar Organisms:

Why do Multicelluar organisms require development of specialised organs systems?

What are diploid body cells, and which organisms have them?

What are haploid cells?

Haploid / Diploid:
What are gametes?

Haploid / Diploid:
What happens at fertilisation?

Describe what happens with the sperm cell during fertilisation, and what the effect to the egg is?

How many chromosomes does a gamete have?

What is mitosis?

What's meiosis?

What does The Blood contain, and what is the function of these 4 components?

Describe the shape and size of the red blood cell and the reason associated.

What is the equation for the creation of Oxyhaemoglobins.

What does the blood move through around the body?

Describe the function of:
Arteries,
Veins,
Capillaries.

What does the right hand side of the heart do?

What does the left hand side of the heart do?

What is a Double Circulatory System and where is it found?

What are the adaptations for:
Arteries,
Veins,
Capillaries.

What do the ventricles do in the heart?

State the functions of right ventricle and left ventricle.

What does the Atria do?

What are the names of the valves which prevent the blood flowing wrong direction?

What do Plant & Animal Cells contain?

What do Plant Cells contain in addition?

Found in Plant Cells, what is the function of: Cellulose Cell Wall

Found in Plant Cells, what is the function of: Cytoplasm

Found in Plant Cells, what is the function of: Permanent Vacuole

Found in Plant Cells, what is the function of: Cell Membrane

Found in Plant Cells, what is the function of: Chloroplast

Found in Plant Cells, what is the function of: Nucleus

Found in Plant Cells, what is the function of: Ribosome

How do animals grow?

Difference in animals and plants growth.

How do plants gain height?

How can Growth be measured?

Where is cell division restricted to in plants?

Advantages and disadvantages of measuring growth by: Height

Advantages and disadvantages of measuring growth by: Wet Mass

Advantages and disadvantages of measuring growth by: Dry Mass

What are Stem Cells?

Where are stem cells obtained from?

Which stem cells are more useful, embryonic or adult?

What is selective breeding?

How can Selective Breeding improve agriculture yields in plants and animals? E.g. Cows.

What is a disadvantage of selective breeding?

What is Genetic Engineering?

What are the advantages of altering the genetic makeup.

What is the advantages and disadvantages of Genetic Engineering?

What's Gene Theraphy?

What is asexual reproduction?

What are the advantages of Cloning Plants?

What are the disadvantages of Cloning Plants?

How does Cloning by Tissue Culture work?