Science stuff

Question 1

What is the cell cycle?

Answer 1

The cell cycle is the series of events that take place in a cell that cause it to divide into two daughter cells.

Question 2

what is a daughter cell?

Answer 2

A daughter cell is the result of one adult cell splitting in half, creating a daughter cell.

Question 3

How long does the cell cycle last?

Answer 3

It varies depending on age, going from 1 hour to 24 hours, and sometimes even more.

Question 4

what is mitosis

Answer 4

The process in which one single cell divides into two identical daughter cells.

Question 5

what is mitosis’ role in the cell cycle?

Answer 5

The major purpose of mitosis in the cell cycle is for growth and to replace worn out cells.

Question 6

Why is the cell cycle important during the development of a baby?

Answer 6

It is important to organisms in different ways, but overall it allows them to survive.

Question 7

what are the 4 stages in the cell cycle?

Answer 7

1. Increases in size
2. Copies it’s DNA
3. Prepares to divide
4. Divides.

Question 8

when in a humans life is the cell cycle quickest?

Answer 8

when you are a baby

Question 9

when in a humans life is the cell cycle slowest

Answer 9

the older you are, the slower the cell cycle gets.

Question 10

what is the law of conservation of mass?

Answer 10

Atoms cannot be created or destroyed, only rearranged.

Question 11

what does a eukaryotic cell have that a prokaryotic cell doesn’t?

Answer 11

a nucleus

Question 12

Name one difference between eukaryotic and prokaryotic cells.

Answer 12

prokaryotic cells are a type of bacteria, whereas eukaryotic cells are not.

Question 13

what is the function of the cell wall?

Answer 13

gives support to the cell.

Question 14

what is the function of the cell membrane?

Answer 14

controls what goes in and out of the cell.

Question 15

what is the function of the mitochondria.

Answer 15

they are known as the “powerhouses of the cell”. The mitochondria is where respiration happens.

Question 16

what is the function of the nucleus?

Answer 16

The nucleus is the brain of the cell. It controls and regulates the activities of the cell.

Question 17

what is the function of the ribosomes?

Answer 17

They make proteins.

Question 18

what is the function of the chloroplast?

Answer 18

They absorb light and allow photosynthesis to happen. Only found in plant cells.

Question 19

what is the function of the cytoplasm

Answer 19

It is where chemical reactions take place.

Question 20

what is the function of the vacuole?

Answer 20

They are important in providing structural support, as well as containing waste products, and contain water in plant cells.

Question 21

what are the units of measure from biggest to smallest.

Answer 21

km,m,cm,mm,micro metres,nm,picometres,femtometres.

Question 22

what is the equation for magnification?

Answer 22

Magnification= image size/actual size

Question 23

name one organelle present in an animal cell, but not in a plant cell.

Answer 23

Trick question!

Question 24

Name a type of plant cell that is unlikely to have chloroplasts

Answer 24

Root hair cell.

Question 25

animal and plant cells are examples of _____ cells.

Answer 25

answer: Eukaryotic

Question 26

Bacteria is a type of _____ cell

Answer 26

prokaryotic cell

Question 27

name 2 ways sperm cells have adapted to their jobs.

Answer 27

1. They have mitochondria to provide energy for the tail.
2. They have a tail to swim to the egg as quickly as they can.

Question 28

name 1 way muscle cells have adapted to their job.

Answer 28

lots of mitochondria to provide energy to the cells.

Question 29

Name 1 way root hair cells have adapted to their job.

Answer 29

many mitochondria for active transport of minerals.

Question 30

What is diffusion?

Answer 30

Diffusion is the movement of particles from an area of high concentration to an area of low concentration.

Question 31

osmosis is the movement of which particles?

Answer 31

Water :)

Question 32

what are the differences between active transport and diffusion.

Answer 32

active transport requires energy, whereas diffusion does not.

Question 33

The process where new cells are made is…

Answer 33

Mitosis.

Question 34

mitosis is necessary for…

Answer 34

growth and repair.

Question 35

what are the 2 types of stem cells and where are they found?

Answer 35

Adult stem cells: found in the bone marrow.
embryo stem cells: from human embryos.

Question 36

what is active transport?

Answer 36

The movement of molecules moving across a cell membrane, to an area of higher concentration.

Question 37

what is osmosis?

Answer 37

it is the diffusion of water through a semi permeable membrane.

Question 38

what is a permeable membrane?

Answer 38

membrane that allows a passage of water and certain substances

Question 39

what is a semi permeable membrane?

Answer 39

a layer that only certain molecules can pass through.

Question 40

What is a isotonic solution

Answer 40

A solution where cells and salt are equal

Question 41

What is a hypotonic solution

Answer 41

as a lower concentration of solutes than another solution

Question 42

What is a hypertonic solution

Answer 42

Higher concentration of solutes than another solution

Question 43

What is the equation for K.E?

Answer 43

1/2 x mass x velocity squared

Question 44

what is a protist

Answer 44

A protist is any eukaryotic organism that is not an animal, plant, or fungus.