2.1 - plant&animal cells, 2.3 - Importance of cell division, 2.5 - cell cycle

Question 1

2.1- Part of plant cells (Go on Google to see where) 8

Answer 1

Golgi body, smooth endoplasmic reticulum, cell wall, cell membrane, cytoplasm, mitochondrion, chloroplast, nucleus.

Question 2

2.1 - Parts of animal cell (Go on Google to see) 7

Answer 2

smooth endoplasmic reticulum, mitochondrion, cell membrane, cytoplasm, lysosome, golgi apparatus, nucleus

Question 3

2.1- Plant or animal cell? explain. - Cytoplasm

Answer 3

in both. all the organelles inside are suspended in it.

Question 4

2.1- Plant or animal cell? explain. - cell membrane

Answer 4

In both. Supports the cells and allows some substances to enter while keeping others out

Question 5

2.1 - Plant or animal cell? explain. - Nucleus

Answer 5

Both. has genetic information that controls a cell activities

Question 6

2.1 - Plant or animal cell? explain. - mitochondria

Answer 6

Both. Makes energy available to the cell

Question 7

2.1 - Plant or animal cell? explain. - Endoplasmic Reticulum

Answer 7

Both. Fluid filled tubes transport material (protein) through the cell

Question 8

2.1 - Plant or animal cell? explain. - Golgi bodies (Apparatus).

Answer 8

Both. Collect and process materials to be removed from the cell and make secret mucus

Question 9

2.1 - Plant or animal cell? explain. - Vacuoles

Answer 9

Both. contains some substances removing unwanted substances from the cell and maintaining internal fluid pressure with the cell

Question 10

2.1 - Plant or animal cell? explain. - Cell wall

Answer 10

Plant. Provides support for the cell and protection from physical injury

Question 11

2.1 - Plant or animal cell? explain. - Chloroplasts

Answer 11

plant. Contains chlorophyll and gives leaves green colour. It absorbs light energy used for photosynthesis.

Question 12

2.3 - What are the 3 different reasons cell division takes place? (Explain each)

Answer 12

1) Reproduction: Asexual = 1 parent, offspring have same DNA as parent. Sexual = 2 parents, offspring shares characteristics of both parents

2) Growth: # of cells increase as cells grow cuz chemicals used during cell activity enter the cell through the process of diffusion.

3) Repair: cells die then are replaced by new ones, for survival living things need to repair themselves regularly through the cell cycle

Question 13

2.3 - What are the processes that are responsible for chemicals moving into, throughout and out of cells?

Answer 13

Osmosis and diffusion

Question 14

2.1 - What’s cell theory?

Answer 14

All living things are made up of 1 or more preexisting cell, that are the basic unit of life.

Question 15

2.5 - What are the 3 stages of the cell cycle (Explain)

Answer 15

1) Interphase: cells perform normal functions and its genetic material in copied

2) Mitosis: DNA is divided

3) Cytokinesis: Cytoplasm divides to form 2 identical cells.

Question 16

2.5 - 4 phases of Mitosis (Explain)

Answer 16

1) Prophase: Chromosomes become visible and the nuclear membrane begins to dissolve

2) Metaphase: Chromosomes begin to line up in the middle of the cell

3) Anaphase: Centromere splits & sister chromatids separate into daughter chromosomes & move toward opposite end of cell.

4) Telophase: Chromatids unwind and a nuclear membrane reforms around the chromosomes at the end of the cell

Question 17

2.5 - Why is it necessary for cells to copy their DNA ?

Answer 17

To ensure that each daughter cell receives equal amount of DNA