Cells, tissues etc.

Question 1

How many cells are there in the human body?

Answer 1

10 trillion.

Question 2

What is the early stage of an embryo called?

Answer 2

Zygote.

Question 3

What is a stem cell?

Answer 3

A ‘blank slate’. A cell that has no assigned purpose, commonly found in umbilical cords.

Question 4

What are the 3 main organelles?

Answer 4

Cell membrane, cytoplasm and nucleus.

Question 5

What is the function of a cell membrane?

Answer 5

Allows substances to come in and out of the cell. Gives the cell shape.

Question 6

What is the despcription of a cell membrane?

Answer 6

A thin skin that separates the inside of the cell from the outside environment.

Question 7

What is the function of a cytoplasm?

Answer 7

Allows substances to circulate inside the cell. Gives the cell shape.

Question 8

What is the description of a cytoplasm?

Answer 8

It is a semi fluid material surrounding the organelles.

Question 9

What is the function of a nucleus?

Answer 9

Contains DNA. The control center of the cell.

Question 10

What is the description of a nucleus?

Answer 10

Circular organelle located in the middle of the cell.

Question 11

What are the 4 nitrogen bases?

Answer 11

Adenine, Guanine, Thymine and Cytosine. (A, G, T, C is also acceptable.)

Question 12

What are the 2 molecules on the sides of the DNA ladder?

Answer 12

Sugar and phosphate.

Question 13

What are the pairs the nitrogen bases can form in?

Answer 13

A and T. C and G.

Question 14

How many chromosone pairs does the average human have?

Answer 14

23.

Question 15

If a human’s 23rd chromosone is ‘xx’ are they male or female?

Answer 15

Female.

Question 16

If a human’s 23rd chromosone is ‘xy’ are they male or female?

Answer 16

Male.

Question 17

What are the 3 types of muscle tissues?

Answer 17

Skeletal muscles, smooth muscles and cardiac muscles.

Question 18

What is the function of a skeletal muscle?

Answer 18

It holds the bones and muscles together.

Question 19

What is the function of a smooth muscle?

Answer 19

Making your hair stand on it’s end, digestive systems. Things you dont control first hand (ex. breathing).

Question 20

What is the function of a cardiac muscle?

Answer 20

It is the muscle for your heart. It has a unique structure.

Question 21

What is the nerve tissue made up of?

Answer 21

Neurons.

Question 22

How do cells reproduce?

Answer 22

Asexually. By splitting and making copies of themselves.

Question 23

What is the only cell that does not reproduce?

Answer 23

Neurons. Once you lose them, theyre gone.

Question 24

What is meiosis?

Answer 24

When cells perform a type of cell division that four reproductive cells that are genetically different.

Question 25

What is mitosis?

Answer 25

When the cells partake in asexual reproduction by splitting and making copies of themselves.

Question 26

What are reproductive cells also called?

Answer 26

Gametes.

Question 27

What does DNA coil up to form?

Answer 27

Chromozones.

Question 28

What are the 4 types of tissues?

Answer 28

Muscle tissue, nerve tissue, Epithelial and connective tissues.

Question 29

What is cell cultures?

Answer 29

Cell culture is a process by which cells are reproduced outside the organism they come from. Cell cultures are used to develop vaccines and to create tissues like skin to treat severe burns.

Question 30

Where is DNA found?

Answer 30

In the nucleus.

Question 31

What is a gene?

Answer 31

A gene is a segment of DNA.

Question 32

What does GMO stand for?

Answer 32

Genetically Modified Organisms.

Question 33

What is a GMO (Genetically Modified Organisms)?

Answer 33

GMO is a living organism whose genetic material has been modified by introducing new genes into its DNA, to obtain new characteristics.

Question 34

What is the first step in assisted reproduction?

Answer 34

Hormonal treatments.

Question 35

What is the second step in assisted reproduction?

Answer 35

artificial insemination

Question 36

What is the third step in assisted reproduction?

Answer 36

IVF

Question 37

What is the fourth step in assisted reproduction?

Answer 37

intracytoplasmic sperm injection

Question 38

Are you for or against Assisted Repdroduction? Why?

Answer 38

Against. These procedures are quite expensive and still might not work. The moral question of what to do with the leftover embryos is also posed. Not to mention the pain and complications that could happen.

Question 39

Are you for or against GMOs? Why?

Answer 39

For. There has been no research that has show GMOs are harmful to us. It is also more enjoyable for consumers when fruits such as grapes or oranges are modified to not include seeds. The farmers also make more profit from using GMOs.

Question 40

What is the epithelial tissue?

Answer 40

It is the tissue that goes with your skin. It also lines the inside of your stomach.

Question 41

How do you recognize the connective tissue?

Answer 41

Does it protect? Support? Connect?

Question 42

What is the muscle tissue?

Answer 42

The tissue found on muscles.

Question 43

Where are nerve tissue found?

Answer 43

In the brain, spinal cord and nerves.