Chapter 4,5,6 BIO

Chemical reactions that break down lipids are

catabolic

Some kinds of drain cleaners use enzymes rather than strong, more dangerous chemicals. These enzymes must be able to

catalyze a catabolic reaction

Which of the following pairs of processes encompasses the entire cell cycle

cell division and interphase

Some daughter cells are described as clones. For this description to be appropriate, the daughter cells must

contain a set of DNA that is identical to that of the parent cell.

The energy required for life processes must be extracted from an organisms ?

environment

The capture and use of energy by living organisms involves numerous chemical reactions. Collectively these processes are known as

metabolism

Living cells have an intact phospholipid bilayer that separates the cell from its external environment; this structure is commonly referred to as the

plasma membrane

Photosynthesis and cellular respiration are both complementary and relatively balanced, but early history of life on earth showed increasing oxygen concentrations. This indicates that?

the amount of photosynthesis occurring exceeded the amount of cellular respiration

A chemical reaction that used ATP to build cellular components is

Anabolic

Processes of mitosis and meiosis, and binary fission all

Are used to produce daughter cells

Which of these molecules carries the most energy

Atp

A researcher is recording the process of bacteria cell division using time lapse microscope. Which of the following processes would she be observing

Binary fission

What would be the initial outcome of decreasing the number of photosynthesis organisms on earth with no change in the number of organisms using cellular respiration?

Carbon dioxide levels would increase

What type of reactions release energy by breaking down complex molecules?

Catabolic

A worker is paid every 2 weeks. She uses some of this$ to pay for essentials and puts the remainder in savings. The money the worker saves is analogous to the

Conversion of ADO and phosphate into ATP

Which phase is the genetic material evenly partitioned between daughter cells

Cytokinesis

The outcome of meiosis is the production of

Eggs and sperm

Which phase does cell increase in size in prep for division?

G1 phase

Stages of interphase are

G1, S, G2

Phospholipids are large organic molecules w a hydrophilic polar phosphate head connected to hydrophobic non polar fatty acid tails. These molecules arrange themselves to form a mostly impermeable barrier between a liposome and it's environment by lining up

Hydrophobic tails facing each other at the center line of the membrane with the hydrophilic heads facing outward, away from the center line of the membrane

A pool of cells is treated with a chemical that halts progress through the cell cycle. In which stage of the cell cycle would most cells be found?

Interphase

Which of the following is associated w mitosis

Maintence of chromosome #

Which of the following differentiations meiosis from mitosis?

Mitosis is used for the repair of cells, whereas meiosis creates cells for sexual reproduction

Liposomes form spontaneously from ? And are important because?

Phospholipids bilayers, they provide a barrier between an external environment and an internal

What is the importance of photosynthesis to organisms other than plants

Photosynthesis captures energy that other organisms access when they eat either plants or organisms that eat plants

Which of the following statements is true about cell division?

Process by which organisms grow and main their tissues

The process of cell division is different for prokaryotic versus eukaryotic cells because

Prokayotes have a circular DNA molecule

The plasma membrane of white blood cells contain ? Proteins that bind w proteins of cells such as bacteria that have invaded the human body

Receptor

Which phase is of the cell cycle is genetic material dublicated

S PHASE

Photosynthesis organisms capture energy from sunlight and convert it into chemical bonds by forming

Sugars

Plants and animals use different energy storage molecules , yet both use same mechanism to burn their stored energy. How can plants and animals both be successful, even though they burn different energy storage molecules?

The breaking of chemical bonds of a storage molecules transfers energy, no matter what molecule is stored.

Which of the following statements best describes the differences between the nuclear envelope and the plasma membrane

The nuclear envelope consists of 2 concentric phospholipid bilayers, while the plasma membrane is the only one phospholipid bilayers. Both membranes are selectively permeable and have pores

selective permeability of a phospholipid bilayer membrane can be increased w help from ? Proteins

Transport, channel proteins& passive carrier

Which of the following accurately describes viruses

Typically a piece of genetic material encased in protiens, viruses are small, noncellular infectious agents tjst are only capable of reproducing when inside a living cell sich as those of plants, animals, fungi, protozoans, or bacteria

Each time a person takes a breath he or she is bringing in the oxygen he or she needs to stay alive. The ultimate source of oxygen used by all aerobic organisms comes from a reaction that breaks down ?

Water

The G0 phase of the cell cycle is distinguished by

an absence of preparation for DNA synthesis