1st year

Question 1

what are the levels of organism

Answer 1

1. cells
2. tissue
3. organs
4. organelles
5. organ systems

Question 2

what cells does an animal cell have

Answer 2

1. nucleus
2. cell membrane
3. cytoplasm
4. mitochondria
5. ribosomes

Question 3

what cells does a plant cell have

Answer 3

1. nucleus
2. cell membrane
3. cell wall
4. mitochondria
5. cytoplasm
6. vacuole
7. chloroplasts

Question 4

what is the function of the nucleus

Answer 4

to hold genetic information (DNA) and controls activity in the cells

Question 5

what is the function of the cell membrane

Answer 5

controls what enters and leaves the cells and gives the cell protection

Question 6

what is the function of the cell wall

Answer 6

to give the cell strength and to protect it from harm

Question 7

what is the function of the mitochondria

Answer 7

the site of aerobic respiration and where energy is released

Question 8

what is the function of the cytoplasm

Answer 8

where chemical reaction occur

Question 9

what is the function of the chloroplast

Answer 9

contain chlorophyll which absorbs he sunlight energy needed for photosynthesis

Question 10

what is the function of the vacuole

Answer 10

to keep the cell rigid and firm and cushion it from impact and stores water

Question 11

what is the difference between plant and animal cells

Answer 11

plant cells have chloroplast and a cell wall and a vacuole which animal cells don’t

Question 12

what are the 8 characteristics of living organisms

Answer 12

1. they require nutrition
2. they respire
3. they reproduce
4. they grow and develop
5. they respond to environmental changes
6. they excrete
7. they control their internal conditions
8. they move