Chapter 4 & 5 Intro Biology

Kelly would like to observe the cilia on the surface of a live paramecium: a singular cell organize. The best device to do this would be a ___

A) Light Microscope

Which is an example of potential rather than kinetic energy?

A) an apple made up of energy-rich macromolecules

Which of the following statements reflects what occurs in the flow of energy conversions through living systems?

A) chloroplasts convert solar energy to chemical energy of nutrient molecules

Surface to volume ratio is an important characteristic for cell function;some cells increase their ratio by

A) developing finger-like projections

Which of the following organelles would be abundant in a sperm cell that is seeing to fertilize an egg cell?

A) mitochondria

Resolving power is

A) the ability to tell two points apart as separate points.

Which of the following organelles is not involved in producing substances needed by a cell?

B) Lysosome

The second law of thermodynamics states that all energy transformations result in more disordered energy. How does this relate to energy transformations in a living organism?

B) the energy taken in as food is eventually converted into heat energy

The glycoproteins found in the plasma membrane function in what capacity?

B) to allow one cell to recognize another of the same type or from the same body

Identify which of the following statements is not true.

C) ATP is composed of sugar, base and two phosphate groups

Which one of the following molecules is able to move across the cell membrane by simple diffusion?

C) Carbon Dioxide

_____ are bacterial structures involved in the passage of DNA into or out of the cell.

C) Conjugation Pili

What statement below is correct when comparing plant and animal cells?

C) both plant and animal cells have a plasma membrane and plant cells also have a cell wall.

Why do metabolic pathways require tens to hundreds of different enzymes?

C) each enzyme has a specific substrate and produces a specific product.

When neurons release their neurotransmitters, they release them by secretory vesicles fusing with the plasma membrane thereby emptying their contents into an area that can stimulate some response. What type of cellular transport is occurring as the vesicle forms and then surfaces on the cell's plasma membrane?

C) exoytosis

Which of the following human cells would contain cilis?

Cell from the trachea (windpipe)

Which of these words does not belong with the rest as it relates to concentration gradient?

D) active transport

Which of the following is not a function of the endomembrane system?

D) acts as the control center of the cell

Which of the types of cellular activities listed below would not use ATP?

D) passive transport

The opposite of turgid plant cell is a ______

D) plasmolyzed plant cell

Which of the following is not a possible function of the extracellular matrix in animal cells.

E) Produce numerous channels for continuous flow of water from cells to cells.

What function does the nucleolus have?

E) codes for the synthesis of ribosomal RNA

A tadpole that is undergoing metamorphosis into a frog and losing the need for tail would see abundant numbers of what organelle to help assist in the tail loss.

E) lysosomes

Which of the following organelles is not surrounded by a membrane

E) ribosome

The second law of thermodynamics states that all energy transformations result in more disordered energy. How do living organisms, which depend on chemical potential converting to kinetic energy to fuel their function, continue to live?

A) they must constantly take in chemical potential energy for fuel and excrete waste

Which of the following is the correct sequence for an altered protein that is secreted from the cell?

A)rough endoplasmic reticulum-Golgi apparatus-plasma membrane

Eukaryotic cells move their organelles via

A)the cytoskeleton

Some proteins with a cell can be viewed with

B) an electron microscope

Enzymes are named based on the substrate that they bind; this is possible because

B) an enzyme binds one specific substrate

A prokaryotic cell

B) does not have membrane-bound nucleus

Molecules move from greater to lesser concentration through a transport protein in ______

B) facilitated diffusion

Intestinal cells absorb glucose via active transport. What would happen if all the mitochondria within these intestinal cells were destroyed?

B) glucose absorption would be decreased

Simple diffusion of molecules occurs _______

B) in non-living systems as well as in living systems

ATP is a good source of energy for a cell because

B) its breakdown is coupled with energy-requiring reactions

Which of the following shows the flow of energy at the cellular level through the biosphere?

C) solar energy-chloroplast-mitochondria

Which of the following is not an example of osmosis?

C) sugar in coffee dissolves

Which of the following is not a type of Intracellular protein

C)Cellulose

Chloroplasts and mitochondria are similar in that they both

C)are involved in energy conversion

Which of the following enables a cell to pick up and concentrate a specific type of molecule?

B) receptor-mediated endocytosis

A white blood cell surrounds and engulfs a worn out red blood cell, forming a vesicle around the red blood cell. This process is called _______.

B) phyagocytosis