plant animal cells: Biology

Plant cell wall are made from what ?

Cellulose

The gas’s produced from photosynthesis is what ?

Oxygen

The tissue which contains the most chloroplast is what ?

Palisade Mesophyll

The green pigment that absorbs light energy is what ?

Chlorophyll

Pores in the lower leaf surface that allow diffusion of gases in and out are called what ?

Stomata

The plant vessel that carries sucrose during translocation is ?

Phloem

Light intensity, temperature and CO2 concentration are examples of what ?

Limiting factors

What is Homeostasis ?

The maintenance of constant internal conditions for optimum functioning despite internal and external changes

Homeostasis is important because it controls many internal conditions like ?

Body temperature

What happens to the DNA during the first stage of cell cycle ?

DNA replicates

During what stage does of the cell cycle does DNA replicate ?

First stage

What happens to the size of the cell during the first stage of cell cycle ?

Increases

Along with proteins, which organelle increases in number during the first stages of cell cycle ?

Mitochondria

Where do chromosomes line up during the second stage of mitosis?

The middle

What are pulled to each side of the cell after they line up down the middle ?

chromosomes

What forms around the set of chromosomes at the end of the second stage of mitosis ?

Nuclear membrane

What stage does the cell split into 2 and the cell membrane forming 2 cells ?

3rd stage

Are cells during mitosis haploid or diploid ?

Diploid

How many sets of chromosomes does a diploid cell have ?

2

Mitosis produces which type of cell : body cells or gametes ?

Body cell

True or False: stem cells are differentiated cells ?

False

True of false: stem cells are not specialised cells ?

True

What do specialised cells have that unspecialised cells don’t ?

A function

I which part of the body are adult stem cells found ?

Bone marrow

Do adult stem cells differentiate into all cells ?

No

Which stem cell differentiates into any cells ?

Embryonic stem cell

True or false : Embryonic stem cells only differentiate into major organ cell ?

False

What do stem cells repair ?

Damaged tissue

What do stem cells replace?

Damaged cells

Where are the embryonic stem cells found ?

Embryos

True or false : Embryos have the potential to be life ?

True

Do Embryonic stem cells help cure diseases ?

Yes

Where do Embryonic stem cells come from ?

Mostly come from embryos found during IVF, and those embryos would have been destroyed anyways