Bio Quizlet

As a cell becomes larger, its a. volume increases faster than its surface area. b. surface area increases faster than its volume c. volume increases, but its surface area stays the same. d. surface area stays the same, but its volume increases.

a

Chromatids are distributed to the two daughter nuclei. a. G1 b. S c. G2 d. M

a

The cells have an abnormal nucleus. a. cancer cell b. normal cell

a

The cells undergo metastasis. a. cancer cell b. normal cell

a

The illustration shoes a model of the transport of solute particles from outside the cell to inside the cell. What type of cell transport is modeled? a. The model illustrates active transport because energy is required for solute particles to cross the cell membrane b. The model illustrates diffusion because solute particles are moving from an area of higher concentration to an area of lower concentration c. The model illustrates facilitated diffusion because protein channels allow solute particles to cross the cell membrane

a

The structure labeled A in Figure 10-5 is called the a. centromere. b. centriole. c. sister chromatid. d. spindle.

a

They are non-differentiated cells. a. cancer cell b. normal cell

a

This process increases number of body cells. a. cell division b. apoptosis

a

This process produces specialized cells. a. cell division b. apoptosis

a

This process repairs injuries. a. cell division b. apoptosis

a

Which of the following happens when cancer occurs? a. The control of the cell cycle is impaired. b. Cells cannot pass the G1 checkpoint. c. Apoptosis or programmed cell death takes place. d. The cells can no longer enter the cell cycle.

a

which organelles are involved in energy conversion a. mitochondria and chloroplasts b. mitochondria and ribosomes c. smooth and rough endoplasmic reticulum d. golgi apparatus and chloroplasts

a

Why do cells divide? Select all that apply. a. to ensure that a cell does not become too large b. to produce new cells during an organism's growth c. to replace damaged cells and tissues d. to ensure all cells remain undifferentiated

a,b,c

Which of the following statements are typical for cancer cells? Select all that apply. a. They tend to be unspecialized. b. They undergo apoptosis. c. They may form tumors that metastasize. d. They have defective genes.

a,c,d

passive or active transport? Includes endocytosis and exocytosis

active

passive or active transport? particles move from an area of low concentration to an area of high concentration

active

passive or active transport? requires cellular energy

active

Cells with DNA damage undergo apoptosis. a. cancer cell b. normal cell

b

Like animals, plants contain a hierarchical organization of interacting systems. Which of the following is an example of an organ in a plant? a. chloroplast b. leaf c. seed d. vascular tissue

b

Proteins and other materials needed for cell division are synthesized. a. G1 b. S c. G2 d. M

b

The cells are differentiated and specialized. a. cancer cell b. normal cell

b

The cells have a normal nucleus. a. cancer cell b. normal cell

b

The cells of all organisms contain DNA. In cells of which of the following groups is the cellular DNA enclosed in a nucleus? a. bacteria b. eukaryotes c. prokaryotes d. viruses

b

The diagram shows the structure of a eukaryotic chromosome. Which of the following events is best represented by the diagram ? a. the transcription of genes into mRNA b. the binding of DNA by histones c. the locations of specific genes on D d. the binding sites of DNA polymerase

b

This process causes death of abnormal cell. a. cell division b. apoptosis

b

This process decreases the number of body cells. a. cell division b. apoptosis

b

This process regulates the cell cycle. a. cell division b. apoptosis

b

At the end of this phase, each chromosome is made up of two chromatids. a. G1 b. S c. G2 d. M

c

During which phase in the cell cycle does mitosis happen? a. G1 phase b. G2 phase c. M phase d. S phase

c

Lysosomes are organelles that contain enzymes. Which of the following is a function of lysosomes? a. Lysosomes build lipids, carbohydrates, and proteins. b. Lysosomes package lipids, carbohydrates, and proteins. c. Lysosomes break down lipids, carbohydrates, and proteins. d. Lysosomes store lipids, carbohydrates, and proteins.

c

Which advantage of having the a cell's DNA bundled into separate chromosomes is illustrated in Figure 10-1 above? a. During DNA replication, the number of chromosomes is cut in half. b. During DNA replication, the number of chromosomes stays the same. c. During cell division, each daughter cell will get the same number of genes. d. During cell division, each daughter cell will get a random number of genes.

c

Which of the following lists structures from smallest to largest? a. chromosome, supercoil, coil, nucleosome, double helix b. chromosome, coil, double helix, nucleosome, supercoil c. double helix, nucleosome, coil, supercoil, chromosome d. nucleosome, coil, double helix, chromosome, supercoil

c

Which of the following statements is part of the cell theory? a. cells are mostly composed of empty space b. cells are generally large enough for the unaided eye to see c. all cells are produced from existing cells d. only animals are made up of cells

c

a number of scientist made contributions to cell theory. Which scientist was the first to use a light microscope to observe cells in a slice of cork? a. Anton van Leeuwenhoek b. Matthias Schleiden c. Robert Hooke d. Theodor Schwann

c

multi cellular organisms contain organ systems. Which of the following BEST describes the organs in an organ system? a. the organs in an organ system are made up of similar cells b. the organs in an organ system are made up of similar tissues c. the organs in an organ system work together to preform a specific function d. the organs in an organ system work together to preform all the functions a multi cellular organism needs to maintain homeostasis

c

which of the following statements about the nucleus is not true a. the nucleus stores the coded instructions for making cell's proteins b. the nucleus usually contains a nucleolus region which is where ribosome assembly begins. c. the nucleus is the site of protein assembly d. the nucleus is surrounded by a nuclear envelope that lets materials in and out

c

A cell is placed in an isotonic solution. How dose the cell maintain homeostasis in this environment? a. There is no movement of water molecules into or out of the cell because the concentrations of solute particles inside and outside the cell are the same. b. water will move across the cell membrane to the inside of the cell because the cell has a higher concentration of solute particles than the solution. c. water will move across the cell membrane to the outside of the cell because the solution has a higher concentration of solute particles than the cell d. Water will move across the cell membrane in both directions because the concentrations of solute particles inside and outside the cell are the same

d

All cells contain membranes. Which of the following describes the composition of cell membranes? a. Cell membranes are composed of carbohydrate chains, which allow all materials to enter and leave the cell b. Cell membranes are composed of cellulose, which provide rigidity for the cell. c. Cell membranes are composed of cytoplasm, which allows proteins to be excreted by the cell. d. Cell membranes are composed of lipid molecules, which provide a flexible structures.

d

Organelles and materials needed for DNA synthesis are made. a. G1 b. S c. G2 d. M

d

Unlike the cell membrane, the cell wall is a. found in all organisms b. composed of a lipid bilayer c. selectively permeable d. a rigid structure

d

what is a cell with no nucleus

eukaryotic

Kate and Sam are researching photosynthesis in algae. They are deciding whether to purchase a light or scanning microscope for their research. Match each criterion and trade off to the correct type of microscope. light or scanning electron microscope can observe living algae

light

Kate and Sam are researching photosynthesis in algae. They are deciding whether to purchase a light or scanning microscope for their research. Match each criterion and trade off to the correct type of microscope. light or scanning electron microscope less expensive option

light

passive or active transport? dose not use cellular energy

passive

passive or active transport? particles move from an area of high concentration to an area of low concentration

passive

Kate and Sam are researching photosynthesis in algae. They are deciding whether to purchase a light or scanning microscope for their research. Match each criterion and trade off to the correct type of microscope. light or scanning electron microscope forms images of the surfaces of cells, not the interior

scanning electron

Kate and Sam are researching photosynthesis in algae. They are deciding whether to purchase a light or scanning microscope for their research. Match each criterion and trade off to the correct type of microscope. light or scanning electron microscope has the higher magnification power

scanning electron

Kate and Sam are researching photosynthesis in algae. They are deciding whether to purchase a light or scanning microscope for their research. Match each criterion and trade off to the correct type of microscope. light or scanning electron microscope requires placing algae cells in a vacuum

scanning electron

what is diffusion?

solute particles moving from an area of high concentration to an area of low concentration

figure 7-2 Chapter 8 which structure stores minerals such as water, salt, proteins, and carbohydrates?

structure c