Bio Test 4.1-6.5

In the light independent reactions of photosynthesis...

CO2 enters the Calvin cycle and sugars are made

Which is the following stamens best described the process of photosynthesis?

Chloroplast absorb sunlight and store chemical energy

Energy is release from an ATP molecule for cellular processes when it-

Has a phosphate group removed

Which is the term for the group of proteins that organize and conenss s long strands of DNA into tight coils?

Histones

Where does the chemical energetic to produce ATP come from?

The breakdown of carbon molecules into smaller molecules

Which of the following best describes the electron transport chain in photosynthesis?

a series of proteins located in the thylakoids membrane

In the electron transport chain, energy from the Krebs cycle is used to pump hydrogen ions-

across the inner mitochondrial membrane

During which phase of mitosis do sister chromatids separate form each other?

anaphase

What is the term for the programmed death of cells?

apoptosis

Vegetative reproduction budding and fragmentation are examples of what?

asexual mitotic reproduction

The most common form of reproduction among prokaryotes-?

binary fission

Which is the main difference between binary fission and mitosis?

binary fission occurs in single celled organism

Stem cross are important to multicellular organism because of their-?

capacity to differentiate

The function of the light dependent reactions is-

capture and transfer energy

Which of the following statement best describes cellular respiration?

carbon based molecules from food and oxygen are used to make ATP

The light independent reactions of photosynthesis need?

carbon dioxide

Which end product of alcoholic fermentation is important in the baking industry?

carbon dioxide

Substances known to produce or promote cancer are called-?

carcinogens

Which phrase best describes the function of the ATP molecule?

carries energy

During the gap 1 stage of the cell cycle a cell-

carries out its normal function

Which sequence shows the progression from least complex structure to most complex structure?

cell tissue organ organ system

Which of the following is a direct result of a normal cells ability to express only certain genes?

cells can differentiate and specialize

Which of the following is the source for energy used in chemosynthesis?

chemical compounds

The main light absorbing molecules found in plant leaves are-

chlorophyll

Which of the following statements are true of cytokinesis?

completes the cell cycle

The process of mitosis and cytokensis produce two identical-

daughter cells

Which of the following phrases best describes cytokinesis?

division of cytoplasm

Which of the following takes place in the light dependent reactions of photosynthesis?

energy is captured

Starfish that reproduce by splitting into pieces are reproducing by what?

fragmentation

Which phrase best describes an organ system?

groups of organs that work together

Proteins that bind to cells and simulate cell division are called?

growth factors

Which phrase best describes the main role of fermentation?

it allows glycolysis to continue making a small amount of ATP

Which of the following statements is true about as sexual reproduction?

it produces genetically identical offspring

Two internal factors that are important in advancing the cell cycle are?

kinases and cyclins

Which end products of fermentation cause the burning feeling in muscles?

lactic acid

In which stage of cell cycle do the nucleus and its contents divide?

mitosis

The process of organizing and condensing DNA into its compact form takes place at the start of-

mitosis

What is a term for an organism that makes its own source of chemical energy?

producers

What is the main function of the Krebs cycle?

producing molecules that carry high energy electron transport chain

Which of the following are end products of glycolysis?

pyruvate and ATP

Which phrase phrase about fermentation is correction?

takes place without oxygen

What is the relationship between the photosynthesis and the Calvin cycle?

the photosynthesis transfers hydrogen moons and carbon dioxide to Calvin cycle

Which of the following limits the maximum size of a cell

the ratio of cell surface area to volume

Why does a runner breathe hard for a few minutes after a race?

the runners cells are making up for an oxygen deficit

Which is the following is true for all cells?

they all use chemical energy

Which statement is true about the rates of cells division in eukaryotes?

they vary greatly within an organism

What is the function of oxygen in cellular respiration?

to pick up electrons at the end of the electron transport chain

Which type of stem cell can grow into any other cell type-?

totipotent

which of the following best describes cancer?

uncontrolled cell growth

Where do the hydrogen ions for the photsystems of the light dependent reactions come from?

water