Semester 1 Science Prep

Choose the major principles of cell theory

• All cells come from pre-existing cells

• The cell is the basic unit of structure and organization in organisms

• All organisms are composed of one or more cells

• Chromosomes, DNA and mitosis

Choose the stages of the cells cycle

• Gap 2 & Gap 2

• Mitosis

• Anaphase

• Gap 1 , Synthesis, Gap 2 & Mitosis

There are 2 types of cell transport, name them.

What is the difference between passive and active transport?

• Active transport moves substances with the help of osmosis
• Passive transport requires energy

• Passive transport is faster than active transport
• Passive transport does not require energy, while active transport requires energy.

What is homeostasis?

What is an example of negative feedback?

• Eating a balanced diet
• Wearing sunscreen to prevent sunburn
• Exercising to improve cardiovascular health
• Regulation of body temperature by sweating

Which are the major food groups?

• Carbohydrates

• Nucleic acids

• Protein

• Carbon

• Lipids

What is the difference between hypotonic and hypertonic?

• Temperature difference
• Color variation
• Solute concentration hypertonic has a higher concentration of solute

• Size of the particles Hypo has bigger particles

What are the main organs of the cardiovascular system?

• lungs and liver
• stomach and intestines
• brain and spinal cord
• heart and blood vessels

Write one function of the immune system