cell structure and organisation 🦢

Question 1

what is the order of the levels of organisation? (smallest to largest)

Answer 1

organelles, cells, tissues, organs, organ systems.

Question 2

what is the function of the nucleus?

Answer 2

carries genetic info and controls what happens inside the cell.

Question 3

what is the function of the cytoplasm?

Answer 3

most chemical processes happen here.

Question 4

what is the function of the cell membrane?

Answer 4

controls the movement of substances in and out of the cell.

Question 5

what is the function of the cell wall?

Answer 5

made of cellulose - supports the cell.

Question 6

what is the function of the chloroplasts?

Answer 6

contain chlorophyll (green pigment) which absorbs sunlight - site of photosynthesis.

Question 7

what is the function of the ribosomes?

Answer 7

all the proteins needed for the cell are synthesised (made) here.

Question 8

what are only found in plant cells?

Answer 8

cell wall, vacuole, chloroplasts.

Question 8

what is the function of the vacuole?

Answer 8

contains cell sap - keeps the cell firm.

Question 8

what is the function of the mitochondria?

Answer 8

site of respiration.

Question 9

what are found in both animal and plant cells?

Answer 9

nucleus, cell membrane, cytoplasm, ribosomes, and mitochondria.

Question 10

what are the 8 characteristics that all living organisms share?

Answer 10

Movement
Respiration
Sensitivity

Growth
Reproduction
Excretion
Nutrition
Control of internal environment