the functions of each organelle, the observed properties/behaviours of matter,seperation,cells,(yr7)

Question 1

What is the function of the nucleus in a cell?

Answer 1

The nucleus controls cell activities and contains genetic material.

Question 2

True or False: Ribosomes are responsible for protein synthesis.

Answer 2

True

Question 3

Fill in the blank: The __________ is known as the powerhouse of the cell.

Answer 3

mitochondrion

Question 4

What organelle is involved in modifying, sorting, and packaging proteins?

Answer 4

Golgi apparatus

Question 5

Which organelle is responsible for photosynthesis in plant cells?

Answer 5

Chloroplast

Question 6

What is the primary function of the endoplasmic reticulum?

Answer 6

To synthesize proteins and lipids.

Question 7

True or False: The cell membrane is selectively permeable.

Answer 7

True

Question 8

What is the function of lysosomes?

Answer 8

To break down waste materials and cellular debris.

Question 9

What structure provides support and shape to plant cells?

Answer 9

Cell wall

Question 10

Multiple Choice: Which organelle is known for detoxifying harmful substances? A) Ribosome B) Lysosome C) Smooth ER D) Golgi Apparatus

Answer 10

C) Smooth ER

Question 11

What is cytoplasm?

Answer 11

The jelly-like substance that fills the cell and holds organelles.

Question 12

Fill in the blank: The __________ is responsible for transporting materials within the cell.

Answer 12

vesicle

Question 13

True or False: Prokaryotic cells have a nucleus.

Answer 13

False

Question 14

What are the observed properties of matter?

Answer 14

Mass, volume, density, and state (solid, liquid, gas).

Question 15

What is separation in the context of matter?

Answer 15

The process of dividing mixtures into their individual components.

Question 16

Fill in the blank: A __________ is a substance made up of only one type of atom.

Answer 16

element

Question 17

What do we call a combination of two or more substances that are not chemically bonded?

Answer 17

Mixture

Question 18

Multiple Choice: Which of the following is NOT a state of matter? A) Solid B) Liquid C) Plasma D) Energy

Answer 18

D) Energy

Question 19

What is diffusion?

Answer 19

The movement of particles from an area of high concentration to an area of low concentration.

Question 20

True or False: Cells are the basic unit of life.

Answer 20

True

Question 21

What is the function of the cell membrane?

Answer 21

To protect the cell and regulate what enters and exits.

Question 22

Fill in the blank: The __________ theory states that all living things are made of cells.

Answer 22

cell

Question 23

What is the role of the vacuole in plant cells?

Answer 23

To store substances and maintain turgor pressure.

Question 24

Multiple Choice: Which organelle is involved in energy production? A) Ribosome B) Mitochondrion C) Nucleus D) Golgi Apparatus

Answer 24

B) Mitochondrion

Question 25

What is osmosis?

Answer 25

The diffusion of water across a selectively permeable membrane.

Question 26

True or False: All cells have a cell wall.

Answer 26

False

Question 27

What are the two main types of cells?

Answer 27

Prokaryotic and eukaryotic.

Question 28

Fill in the blank: The __________ is a network of protein filaments that helps the cell maintain its shape.

Answer 28

cytoskeleton

Question 29

What is the main difference between plant and animal cells?

Answer 29

Plant cells have a cell wall and chloroplasts, while animal cells do not.

Question 30

Multiple Choice: Which organelle is responsible for lipid synthesis? A) Ribosome B) Rough ER C) Smooth ER D) Golgi Apparatus

Answer 30

C) Smooth ER

Question 31

What is the purpose of the nucleolus?

Answer 31

To produce ribosomal RNA (rRNA) and assemble ribosomes.

Question 32

True or False: Chloroplasts are found in animal cells.

Answer 32

False

Question 33

What is the function of peroxisomes?

Answer 33

To break down fatty acids and detoxify harmful substances.

Question 34

Fill in the blank: A __________ is a group of similar cells that perform a specific function.

Answer 34

tissue

Question 35

What is the function of the centrosome?

Answer 35

To organize microtubules and regulate the cell cycle.