biology 1 final exam review

Mitosis results in:

2 identical daughter cells

A human skin cell contains 46 chromosomes. How many chromosomes are present in a human egg cells?

23

The process of meiosis produces only gametes, egg or sperm. How many sperm are formed from each cell that undergoes meiosis?

4

Site of photosynthesis in a plant cell is

Chloroplast

What structures are never found in animal cells?

Chloroplast, central vacuole, cell wall

The nucleus contains the cells genetic material in the form of

DNA

Which compound is a reusable, complex protein that speeds up chemical reactions?

Enzymes

Phylogeny is:

Evolutionary history of a species

In the organization of living things, tissues combine to form

Organs

Ticks suck blood from a host organism. This is an example of

Parasitism

Cell walls are made of cellulose in _____ cells.

Plant

Vacuoles are LARGEST in ___ cells

Plant

New cells come from

Pre-existing cells

Liches, represented by this symbiotic relationship, are responsible for _____ or the establishment of a new site for plant growth.

Primary succession

In the chloroplast, carbon dioxide and water are converted to ____ and oxygen

Glucose

Which organelle modifies cell products, packages them for distribution, and then may turn into vesicles and bubble off the surface of the cell?

Golgi apparatus

Evidence for evolution includes the presence of _____, which are similar structures shared by different species

Homologous structures

Any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a ____________ factor.

Limiting

Place the following levels of biological organization in the proper order, from smallest to largest

Macromolecule, cell, tissue, organ , organ system

Most of the ATP made during cellular respiration is produced in which organelle?

Mitocondria

Plant and animals cells make exact copies through the process of

Mitosis

The relationship between humans and their digestive bacteria can be described as

Mutualism

This is a type of symbiotic relationship where both organisms benefit.

Mutualism

Organize the parts of this body system in the correct order according to the levels of organization in multicellular organism, simplest to most complex.

Neurons, nerve tissue, brain, central nervous system, human being.

"Contains DNA, control center, has a membrane & found in eukaryotic cells." These characteristics describe the ____ of a cell.

Nucleus

In a eukaryotic cell, DNA is found in the

Nucleus

Bacteria cells have no ___

Nucleus or other membrane-bound organelles

What is the major difference between prokaryotes and eukaryotes?

Prokaryotes have no uncles or other membrane-bound organelles

membrane bound organelles are not found in the cells of

Prokaryotes such as bacteria

Cells placed in an isotonic solution will

Remain the same

What would happen to a freshwater protozoan if removed from its normal habitat and placed into a saltwater pool?

Shrink, through loss of water through osmosis

All organisms begin life as a _____ cell.

Single

What type of cell is created during meiosis?

Sperm or egg

What is the function of the cell membrane?

To control what enters and leaves the cell

How do enzymes speed up chemical reactions?

By lowering the activation energy

Based on cell theory, why is a virus considered non-living?

Can not reproduce without a host cell

What is the simplest level of organization in a human being?

Cell

What is the smallest unit of life?

Cell

Stem cells begin to transform into different types of cells in the human body in a process known as:

Cell differentiation

Which features do prokaryotic and eukaryotic cells share?

Cell membrane, DNA, cytoplasm, ribosomes

In the lock and key model of an enzyme action, the ______ fits into the _____ of an enzyme.

Substrate, Active site

What will be the effect of placing a plant cell in a hypotonic solution?

Swell

Protiens are made up of _____, and the sequence of these determine how the protein will fold up and take shape, which ultimately determines it's function.

amino acids

Pickles are cucumbers preserved in a prime solution containing dill, alum, and salt. Cucumbers shrink to a fraction of their normal size in the pickle jar. This happens because of the relative salt content of the pickling solution, which is a ______ solution

hypertonic

Primary succession begins after ____

lava flow