Cells

Question 1

Cells

Answer 1

The basic unit of living things

Question 2

2 examples of unicellular organisms & multicellular organisms

Answer 2

unicellular: amoeba & bacteria
multicellular: animals and plants

Question 3

the human body is made of _______ cells

Answer 3

100 trillion

Question 4

Different types of cells in the human body have different __________

Answer 4

sizes, shapes and functions

Question 5

what makes a leaf green?

Answer 5

chloroplasts

Question 6

which type of cells have no nucleus or chromosomes

Answer 6

red blood cells

Question 7

Cell membrane function

Answer 7

Controls the movement of substances in & out of the cell

Question 8

Nucleus function

Answer 8

contains genetic materials which control the activities of the cell

Question 9

Cytoplasm function

Answer 9

the medium where chemical reactions take place

Question 10

cell wall function

Answer 10

protects, supports and gives shape to a plant cell

Question 11

vacuole function

Answer 11

Contains mainly water and stores dissolved minerals

Question 12

chloroplast function

Answer 12

Site where photosynthesis takes place in order to make food

Question 13

Which 3 structures only appear in plant cells

Answer 13

cell wall, vacuole, chloroplast

Question 14

DNA (deoxyribonucleic acid)

Answer 14

determines what features we receive from our parents; contains all instructions needed for the cells to carry out activities so that our bodies can function, grow and reproduce

Question 15

Every cell contains __ pairs of chromosomes (22 pair of ______, 1 pair of _______)

Answer 15

23, autosomes, sex chromosome

Question 15

chromosomes: ?
DNA: ?

Answer 15

-> chromosomes: thread-like structures made of DNA and proteins
-> DNA coils up and wraps around the proteins

Question 16

Sex chromosomes of male & female

Answer 16

Female: XX
Male: XY

Question 17

Chromosomal disorder

Answer 17

A baby born with additional or missing chromosomes

Question 18

Cells can undergo _______ to form new cells

Answer 18

cell division

Question 19

During cell division, the cell divides into two ___________

Answer 19

daughter cells

Question 20

Living things can grow by increasing the ___________ of cells by cell division

Answer 20

size and number

Question 21

Cells become _________ to perform a particular _________

Answer 21

specialized, function

Question 22

list two functions of cells

Answer 22

movement, carrying oxygen

Question 23

stem cells __________ into different types of cells

Answer 23

differentiate

Question 24

_____________ determines become [ ] cell

Answer 24

DNA & genetic information

Question 25

There is a variety of _________ of cells —> closely related to its ________

Answer 25

shapes and sizes, function

Question 26

cell differentiation

Answer 26

The process of cells becoming specialized

Question 27

nerve cells

Answer 27

long & have many branches carry messages throughout the body

Question 28

skin cells

Answer 28

flat & close together protective layer for the body

Question 29

fat cells

Answer 29

store so much fat that the nucleus is pushed to the cell membrane large store of fat helps the body keep warm

Question 30

leaf cells

Answer 30

contain many chloroplasts for the plant to carry out photosynthesis

Question 31

transporting cells | a plant cell

Answer 31

long & tube shaped transport water, nutrients and minerals throughout the plant

Question 32

root hair cells | A type of plant cell

Answer 32

increase the surface area of the root in contact with the soil, so that more water and minerals can be absorbed

Question 33

Multicellular organisms are _________

Answer 33

highly organized

Question 34

Different types of __________ must perform their ____________ and work together at the same time

Answer 34

specialized cells, individual functions

Question 35

Organ

Answer 35

a group of different tissues

Question 36

a group of similar cells

Answer 36

tissue

Question 37

functions of muscle tissue, nerve tissue, and bone tissue

Answer 37

muscle tissue: for movement nerve tissue: for carrying messages in the body bone tissue: for support

Question 37

System

Answer 37

a group of organs that work together

Question 38

functions of vascular tissue and epidermal tissue

Answer 38

Vascular tissue: for transporting water, nutrients, minerals epidermal tissue: for protection

Question 39

List two plant tissue

Answer 39

vascular tissue, epidermal tissue

Question 40

four organs of plants

Answer 40

flower, leaf, stem, root

Question 41

Systems in a human body

Answer 41

digestive system Breathing system Reproductive system Nervous system Circulatory system