Theory review questions chapter 2a

Question 1

Archaea are
A- living things.
B- non-living things

Answer 1

Archaea are living things. (A)

Question 2

Which of the following qualities do living things not need to fulfil? (Select all that apply)
I maintain equilibrium
II move
III grow
IV excrete
V respire
VI oxygenate
VII sense
VIII reproduce
IX sunlight
X extract nutrients

Question 3

Cell theory applies to
A- all living things.
B- eukaryotic organisms only.
C- prokaryotic organisms only

Answer 3

All living things (A)

Question 4

What are Germline cells?

Answer 4

They’re sex cells that reproducing organisms use to pass genome from one generation to the next.

Question 5

What is a Gamete?

Answer 5

A reproductive cell of an animal or plant.

Question 6

Define meiosis.

Answer 6

A type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes.

Question 7

What does “MRS GREEN” stand for?

Answer 7

Movement
respiration
sensitivity
growth
reproduction
equilibrium
excretion
nutrition

Question 8

What does “MRS GREEN” actually mean?

Answer 8

The catch phrase used to remember the 8 must haves for something to be considered a living thing.

Question 9

In the catch phrase “MRS GREEN” what is the meaning of the “MRS” part? (movement, respiration and sensitivity?)

Answer 9

Movement- all living things must be able to move on its own.

Respiration- All living things must be able to extract energy from carbs, fats and proteins in a biochemical process.

Sensitivity- All living thins must be able to react to stimuli. For example, a plant growing in the direction of the sun.

Question 10

In the catch phrase “MRS GREEN” what is the meaning of the “GREEN” part? (Growth, reproduction, equilibrium, excretion, nutrition?)

Answer 10

Growth- All living things must be able to grow and develop over time.

Reproduction- All living things must be able to create new living things through sexual reproduction or cell division.

Equilibrium- All living things must maintain homeostasis allowing it to adapt to different environments.

excretion- The production of wastes and the removing of it.

nutrition- all living things must be able to extract nutrients from the environment to maintain equilibrium.

Question 11

What are the 6 kingdoms?

Answer 11

Animalia, plantae, archaea, bacteria, fungi and Protista.

Question 12

What are the three main points of cell theory?

Answer 12

1. all living things must be made up of cells,
2. cells are the smallest and most basic unit of life.
3. all cells come from pre-existing cells.