Cells

Question 1

What are the main structures found in both plant and animal cells?

Answer 1

Nucleus, cytoplasm, and cell membrane.

Question 2

What structures are unique to plant cells?

Answer 2

Cell wall, chloroplasts, and large vacuole.

Question 3

What is the function of the nucleus in a cell?

Answer 3

It controls the cell’s activities and contains DNA.

Question 4

What is the function of the cytoplasm in a cell?

Answer 4

It’s where most cellular activities occur.

Question 5

What is the function of the cell membrane?

Answer 5

It controls what enters and leaves the cell.

Question 6

What is the function of the cell wall in plant cells?

Answer 6

It provides support and structure to the cell.

Question 7

What is the function of chloroplasts in plant cells?

Answer 7

They are the site of photosynthesis.

Question 8

What is the function of mitochondria in cells?

Answer 8

They are the site of cellular respiration, producing energy.

Question 9

How are processes inside cells linked to keep the cell alive?

Answer 9

Processes like respiration, protein synthesis, and transport work together.

Question 10

Can some cells exist on their own? Give an example.

Answer 10

Yes, some can. Bacteria are an example.

Question 11

Why are cells within an organism specialized?

Answer 11

To carry out specific functions efficiently.

Question 12

What are tissues in a multicellular organism?

Answer 12

Groups of similar cells working together for a specific function.

Question 13

What are organs in a multicellular organism?

Answer 13

Structures made of different tissues working together for a function.

Question 14

What are organ systems in a multicellular organism?

Answer 14

Groups of organs working together for a major bodily function.

Question 15

Name three examples of specialized animal cells.

Answer 15

Sperm cells, egg cells, and nerve cells.

Question 16

What is the basic structure of animal cells?

Answer 16

They consist of a nucleus, cytoplasm, and cell membrane.

Question 17

What are two examples of specialized plant cells?

Answer 17

Leaf cells and pollen cells.

Question 18

What is the basic structure of plant cells?

Answer 18

They have a cell wall, chloroplasts, a large vacuole, and other organelles.

Question 19

How do organ systems work together to keep us alive?

Answer 19

They coordinate to maintain homeostasis and support life processes.

Question 20

What is a dissection?

Answer 20

The process of cutting up an organism to study its structure.

Question 21

What safety precautions are important during a dissection?

Answer 21

Wearing gloves, using sharp tools carefully, and proper disposal of materials.

Question 22

What observations can be made on tissues in a chicken limb?

Answer 22

Color, texture, and arrangement of different tissues.

Question 23

What are the functions of bones in the skeleton?

Answer 23

Support, protection, and movement.

Question 24

What are the functions of muscles in the skeleton?

Answer 24

They contract to produce movement.

Question 25

How do bones and muscles work together for movement?

Answer 25

Muscles pull on bones at joints to create movement.

Question 26

What are antagonistic muscles?

Answer 26

Muscle pairs that work in opposition to each other.

Question 27

Give an example of antagonistic muscles.

Answer 27

Biceps and triceps.

Question 28

How do antagonistic muscles work?

Answer 28

One contracts while the other relaxes to allow movement.

Question 29

What is the function of red blood cells?

Answer 29

To carry oxygen throughout the body.

Question 30

What is the function of nerve cells?

Answer 30

To transmit electrical signals throughout the body.

Question 31

What is the fundamental idea behind the statement 'all living organisms are made of cells'?

Answer 31

Cells are the basic building blocks of life, and all living things are composed of one or more cells.

Question 32

What are the steps involved in using a light microscope to observe cells?

Answer 32

Prepare a slide, focus using objective lenses, adjust light, and view through the eyepiece.

Question 33

How do you draw a simple plan diagram of cells observed under a microscope?

Answer 33

Draw the shape of the cells, indicate their arrangement, and label major visible structures.

Question 34

How do you calculate the magnification of an image viewed through a light microscope?

Answer 34

Multiply the magnification of the eyepiece lens by the magnification of the objective lens used.

Question 35

Why is it important to understand magnification when observing cells?

Answer 35

Magnification allows us to see cells and their structures in detail, which is essential for understanding their functions.

Question 36

How did early scientists develop ideas about the importance of cells?

Answer 36

Through observations using early microscopes and by building upon the work of previous scientists.

Question 37

How has the development of technology influenced our understanding of cells?

Answer 37

Advanced technologies like electron microscopes and genetic analysis have allowed us to see smaller structures and understand cellular processes in greater detail.