Grade 8 Review

Grade 8 ReviewCells to Systems

•Q1: What is the function of the mitochondria?

Cell Parts

•A1: the function of the mitochondria is to create energy for the cell.

Cell Parts

•Q2: What is the function of the nucleus?

Cell Parts

•A2: The nucleus is the control centre of the cell.

Cell Parts

•Q3: What two extra organelles are found in plants only?

Cell Parts

•A3: Chloroplasts and Cell Wall

Cell Parts

•Q4: What is the function of the chloroplast?

Cell Parts

•A4: The function of the chloroplast is to create food from light – PHOTOSYNTESIS.

Cell Parts

•Q5: What is the function of the cell membrane?

Cell Parts

•A5: - controls the movement of substances in and out.

- Provides protection (keeps foreign bodies out)

- Holds the cell together - shape

Cell Parts

•Q6: What is the following organelle?

Cell Parts

•A6: Golgi Apparatus

Cell Parts

•Q7: What prevents blood from moving backwards in the heart and veins?

Circulation

•A7: Valves

Circulation

•Q8: What is the largest artery in the body?

Circulation

•A8: The Aorta

Circulation

•Q9: What molecule in the blood makes the blood red when combined with oxygen?

Circulation

•A9: Hemoglobin.

Circulation

•Q10: What are 2 waste products of respiration?

Circulation

•A10: Water and Carbon Dioxide

Circulation

•Q11: Approximately how many times does an average person’s heart beat while resting?

Circulation

•A11: 70-75 bpm

Circulation

•Q12: What is the large vein from the top of the body that enters the right atrium called?

Circulation

•A12: Superior Vena Cava.

Circulation

•Q13: What part of the compound light microscope controls the amount of light that enters the microscope?

Microscopy

•A13: The diaphragm

Microscopy

•Q14: Who invented the microscope around the year 1609?

Microscopy

•A14: Anton von Leeuwenhoek

Microscopy

•Q15: If the ocular lens is 10x and the objective lens is 20x, what is the overall magnification?

Microscopy

•A15: 10 x 20 x = 200x

Microscopy

•Q16: How have microscopes advanced science and medicine?

Microscopy

•A16: - showed us “invisible” organisms

- Helped us learn about cells and their function

- Taught us about disease

Microscopy

•Q17: What is a group of similar cells working together called?

Cell Organization

•A17: Tissues

Cell Organization

•Q18: What is a group of organs working together called?

Cell Organization

•A18: Organ Systems?

Cell Organization

•Q19: What organ system is made of

- alveoli, pharynx, larynx and sinuses?

Cell Organization

•A19: Respiratory System

Cell Organization

•Q20: What organ system is made of

- Thrombocytes- Erythrocytes- Myocardial tissues

Cell Organization

•A20: The Circulatory System

Cell Organization