Biology Chapter on Plant and Animal Cells

<p>Contain cell walls (B)</p> Signup and view all the answers

<p>Glycogen (B)</p> Signup and view all the answers

<p>Photosynthesis (A)</p> Signup and view all the answers

<p>Chlorophyll (C)</p> Signup and view all the answers

<p>Plant cells have larger vacuoles (C)</p> Signup and view all the answers

<p>Cell division (B)</p> Signup and view all the answers

<p>Interphase (A)</p> Signup and view all the answers

<p>Mitosis (C)</p> Signup and view all the answers

<p>Interphase (A)</p> Signup and view all the answers

<p>G2 phase (C)</p> Signup and view all the answers

<p>Four (B)</p> Signup and view all the answers

<p>Cytoplasm is split into two portions (D)</p> Signup and view all the answers

<p>Cell growth and preparation for division (D)</p> Signup and view all the answers

<p>Electron microscopes produce images that are 1000 times more detailed. (A)</p> Signup and view all the answers

<p>It enhances the knowledge and understanding of cells. (D)</p> Signup and view all the answers

<p>They are held in the skin for a longer time. (D)</p> Signup and view all the answers

<p>The Titan 80-300 Cubed electron microscope. (C)</p> Signup and view all the answers

<p>It encourages visualization of different cell features. (B)</p> Signup and view all the answers

<p>It alters the skin cells' DNA. (B)</p> Signup and view all the answers

<p>Wearing protective clothing and sunscreen. (A)</p> Signup and view all the answers

<p>Cells vary in shapes and sizes but share common structures. (D)</p> Signup and view all the answers

<p>They form a protective barrier. (A)</p> Signup and view all the answers

<p>Relating cell function to everyday objects or phenomena. (A)</p> Signup and view all the answers

<p>Basic structures that perform essential functions. (C)</p> Signup and view all the answers

<p>Formation of wrinkles and discoloration. (B)</p> Signup and view all the answers

<p>To connect unfamiliar concepts with familiar experiences. (D)</p> Signup and view all the answers

<p>Hormones and vitamin levels. (C)</p> Signup and view all the answers

<p>Skin cancer development. (B)</p> Signup and view all the answers

<p>They are toughened and flattened. (A)</p> Signup and view all the answers

<p>Growth and preparation for division (A)</p> Signup and view all the answers

<p>Identical copies of a chromatid (C)</p> Signup and view all the answers

<p>Prophase (B)</p> Signup and view all the answers

<p>The number of chromosomes is the same across all organisms. (C)</p> Signup and view all the answers

<p>Volume increases faster than surface area. (D)</p> Signup and view all the answers

<p>They are spread out as chromatin. (C)</p> Signup and view all the answers

<p>Hermit crab (D)</p> Signup and view all the answers

<p>90 percent of the time (B)</p> Signup and view all the answers

<p>DNA replication (D)</p> Signup and view all the answers

<p>S phase (C)</p> Signup and view all the answers

<p>Anaphase (C)</p> Signup and view all the answers

<p>Preparation for cytokinesis (C)</p> Signup and view all the answers

<p>S phase (B)</p> Signup and view all the answers

<p>Condensation of chromosomes (B)</p> Signup and view all the answers

<p>Throughout G1 phase (B)</p> Signup and view all the answers

<p>Metaphase (B)</p> Signup and view all the answers

<p>Cytokinesis (C)</p> Signup and view all the answers

<p>Anaphase (D)</p> Signup and view all the answers

A type of microscope that uses electrons to produce highly detailed images.

The ability to see very small objects, providing details that are not visible to the naked eye.

The basic unit of life, responsible for all living functions.

The smallest unit of a substance, representing the fundamental building block of a chemical element.

A device that magnifies objects, enabling us to see details that are too small for the naked eye.

The ability to increase the apparent size of an object, revealing details that are otherwise invisible.

A type of microscope that uses visible light to create images.

The process of gaining knowledge about the natural world through observation, experimentation, and analysis.

A green pigment found in plants that absorbs light energy for photosynthesis.

The organelle in plant cells where photosynthesis takes place.

A stack of flattened, disc-shaped sacs within a chloroplast, where chlorophyll is located.

Flattened, disc-shaped sacs within a chloroplast, arranged in stacks called grana.

A large, fluid-filled sac in plant cells that stores water, nutrients, and waste.

A complex carbohydrate stored as energy in plant cells.

A complex carbohydrate stored as energy in animal cells.

Fats stored as energy in animals.

The continuous series of events that a cell undergoes from its formation to its division into two daughter cells.

The period in the cell cycle where the cell grows and prepares for division.

The process of nuclear division where the genetic material is duplicated and divided into two equal portions.

The division of the cytoplasm into two portions, resulting in the formation of two daughter cells.

The first growth phase of the cell cycle, where the cell grows and synthesizes proteins.

The phase of the cell cycle where DNA is replicated, ensuring each daughter cell gets a complete set of chromosomes.

The second growth phase of the cell cycle, where the cell prepares for mitosis by producing proteins and organelles.

The final stage of the cell cycle, where the duplicated chromosomes are separated and the cell divides into two daughter cells.

A long, coiled molecule of DNA and proteins found in the nucleus of every cell.

The total number of chromosomes in a cell, which varies between organisms.

The process where a cell copies each chromosome before division, creating two identical copies called sister chromatids.

The condensed and visible form of chromosomes that appears during cell division.

The region where sister chromatids are attached to each other.

The two identical copies of a chromosome produced during replication.

The spread-out and less visible form of DNA and proteins found when the cell is not dividing.

The process where older skin cells at the surface are shed and replaced by younger cells from below.

Surface skin cells become toughened, flattened, and eventually die, forming a protective barrier.

The rate of skin cell renewal can vary depending on age, hormone levels, and vitamin intake.

Sun exposure can damage skin cells, causing premature aging and increasing the risk of skin cancer.

Sun exposure can alter the DNA of skin cells, disrupting their normal functions, including reproduction and repair.

Skin protection strategies include wearing protective clothing, limiting sun exposure, and applying sunscreen to exposed skin.

The ability of skin cells to reproduce and repair themselves can be compromised by sun damage.

Skin cancer occurs when sun exposure damages skin cells, causing abnormal growth and division.

Prophase is the first stage of mitosis. During this phase, the replicated chromosomes condense and become visible, the nuclear envelope breaks down, and the mitotic spindle begins to form.

Metaphase is the stage where the chromosomes line up at the center of the cell, forming the metaphase plate. This arrangement ensures that each daughter cell receives one copy of each chromosome.

Anaphase is the stage where the sister chromatids (identical copies of each chromosome) separate and move towards opposite poles of the cell. This movement is facilitated by the spindle fibers.

Telophase is the final stage of mitosis. During this phase, the chromosomes reach the poles and decondense, the nuclear envelope reforms around each set of chromosomes, and the mitotic spindle disappears.