Science Test Study Guide for April

Which organelle stores DNA and serves as the control center for the cell? - Nucleus How do a paramecium and an amoeba obtain food to live?

Amoeba feeds through phagocytosis, while paramecium feeds itself through predation.

How should an amoeba be classified?

Amoeba is a genus of single-celled amoeboids in the family Amoebidae. The type species of the genus is Amoeba proteus, a common freshwater organism, widely studied in classrooms and laboratories. ... Amoeba (genus) Amoeba Phylum: Amoebozoa Class: Tubulinea Order: Euamoebida Family:Amoebidae

Complex organisms require a large number of cells that

Are specialized cells

What organelle is only found in a plant cell?

Cell wall

Which structure performs photosynthesis in plant cells but is not present in animal cells?

Chloroplasts

In order to carry out the functions of life an organism must have

Energy and nutrient input

What are some characteristics of an animal (in regards to multi/single cells - cell walls)?

Eukaryotic cells

Which cells are MOST likely to have a greater amount of mitochondria?

Heart muscle cells

The skin is the largest organ in the human body. Why is skin considered to be an organ?

It has tissues and cells

Which involves the greatest variety of cell types? Multicellular

Multicellular

An organism, such as a nematode worm, may have only 1,000 cells. It should be classified as being a?

Multicellular organism

How are tissues and organs related?

Multiple tissues form organ

What do the brain, spinal cord, and nerves combine to form?

Nervous system

What organelle directs cellular functions?

Nucleus

Which structures are common to both plant and animal cells?

Nucleus

What must be absorbed by animal cells in order to grow

Nutrients

The heart, blood vessels, kidneys, and bladder working together are BEST described as what?

Organ system

How is a paramecium categorized?

Paramecium is unicellular and eukaryotic, so they are kept in the kingdom Protista. They are ciliated protozoans and come under phylum Ciliophora. Paramecium Classification. Domain Eukaryota Kingdom Protista Phylum Ciliophora Class Oligohymenophorea OrderPeniculida

What allows materials to enter and leave a cell?

Plasma membrane

Which is true of algae, bacteria, and flowering plants?

They are made from plant cells.

Mitochondria are cell organelles that play a large role in energy processes within the body.

True

Know the organelles and their functions for plant and animal cells

We know these

What must be present in order for something to be classified as an organism?

an organism must share or have the characteristics that define what a living thing ought to be, can grow and develop, can respond to stimuli in the environment, and more.

How is an amoeba able to move?

by extension of the pseudopodium, attachment of the pseudopodial membrane to the substratum, and detachment of the membrane from the substratum at the posterior uroid,

How does an amoeba obtain food?

by holozoic mode of nutrition

The smallest unit of a plant that can perform all the processes of life?

cell

What part (organelle) makes a plant cell different from an animal cell?

cell wall/chloroplast

What structure in a plant cell allows the plant to make food?

chlorophyll/chloroplast

What is the purpose of the 'eyespot' in the euglena?

detects light

At what level of organization does damage compromise the function of the whole system?

organ

What is the correct flow of organization in biological systems?

organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

In what organisms can a cell wall be found? *think animal vs plant

plant

What function do the cell wall and cell membrane perform in a plant cell?

provides tensile strength and protection against mechanical and osmotic stress.

What is the main function of the cell wall in a plant cell?

provides tensile strength and protection against mechanical and osmotic stress.

What is the image MOST likely representing?

single cell of multicellular organism

How are the movements of paramecia and amoebas different?

the amoeba moves using pseudopodia while the paramecium moves using cilia

What is the main role of lysosomes in the process of food digestion?

to degrade material taken up from outside the cell and to digest obsolete components of the cell itself.