Warm - Ups

What plant cell organelle changes carbon dioxide, water and sunlight into glucose? Chloroplasts Mitochondria Vacuole Nucleus

Which statement best explains the reason muscle cells have more mitochondria than brain cells? Muscle cells: Have fewer proteins than brain cells Have a smaller nucleus than brain cells Use more energy than brain cells Have more excess water than brain cells

The function of a cell wall is to: Give the cell energy Let things go in and out of the cell Store genetic material Provide structural support

Melanin is the pigment that gives humans skin color Melanin is the pigment that gives humans skin color. What is the pigment makes plants green? Cytoplasm Chlorophyll Carotene Phycobilin

You want to compare the shapes of different bacterial cells You want to compare the shapes of different bacterial cells. What tool can you use to observe the shapes of the cells? Telescope Petri dish Microscope Hand lens

This illustration of a cell has a label This illustration of a cell has a label. If there were no label, how could you tell that this is a plant cell and not an animal cell? The cell has a nucleus. The cell is surrounded by a cell membrane. The cell is surrounded by a cell wall. The cell contains cytoplasm.

Which structure in this cell contains the genes that control inheritance? Nucleus Cell membrane Mitochondrion Nuclear membrane

Vacuoles store water and nutrients and are found in plant and animal cells. In plant cells, vacuoles are larger and also: Are the site of photosynthesis Help maintain turgor pressure Control the functions of the cell Provide energy for the cell

In the cell below, what organelle is the arrow pointing to? Vacuole Nucleus Chloroplast Cytoplasm

A stray dog was taken to a veterinarian A stray dog was taken to a veterinarian. What cell organelle would help the veterinarian determine the breed of the dog? Vacuole Chloroplast Cytoplasm Nucleus

Cell theory states that all organisms: Are composed of cells Reproduce asexually Reproduce sexually Have a cell wall

Organelle X in the animal and plant cells above have a similar structure. What can you conclude about the function of these organelles? They perform: Respiration Photosynthesis The same functions Different functions

The skeletal system of humans supports the body and gives it shape The skeletal system of humans supports the body and gives it shape. What structure carries out this same function in the plant cell shown above? Cell wall Cell Membrane Vacuole Nucleus

Which elements, represented by their chemical symbols are contained in most organic compounds? Ch, O Ca, H, O C, H, O C, Hg, O

Every organic compound contains which element? Water Carbon Dioxide Nitrogen Carbon

Which of these is the MAIN source of the chemical changes to food as it enters the digestive system? Bile Teeth Saliva Tongue

How do enzymes aid digestion of carbohydrate in the digestive system? Enzymes bind carbohydrates together so they become more complex. Enzymes break carbohydrates down into simple sugars. Enzymes convert carbohydrates into proteins. Enzymes transform carbohydrates into forms that can bind to cells.

According to the graph --‐ Eggs contain the least amount of protein. The body absorbs Beef protein the fastest. Soy protein contains the least soluble type. Beef is the least soluble of all the protein sources. Grams per hour Beef Whey Cream Soy Whole Milk Egg Protein source

Where does mechanical digestion begin during the process of digestion? Teeth Saliva Stomach Small intestine

Which of the following statements accurately compares chemical and physical (mechanical) digestion systems? They are similar because they both are needed for digestion Mechanical digestion breaks down food to smaller particles, while chemical digestion changes food into different substances Mechanical digestion requires acids and enzymes, while chemical digestion uses churning and grinding to break food into smaller piece Chemical digestion only occurs in the stomach, while mechanical digestion occurs in the moth, stomach and intestines

Lipids are large organic compounds that are broken down during digestion into smaller units called--‐ Oil Amino acids Proteins Fatty acids

In the structure, D represents: Where food is absorbed into the bloodstream Where food undergoes both chemical and physical digestion Where food is excreted within the body Where water is absorbed by the tissues surrounding the structure

In structure, A shows mechanical digestion begins with the --‐ Saliva Stomach Esophagus Teeth

pH is a measure of how acidic or alkaline something is pH is a measure of how acidic or alkaline something is. Enzymes work best under certain pH conditions to aid the chemical digestion of food. According to the graph: This enzyme works best with a pH of 6. This enzyme activity is optimal at a pH of 7. The enzyme has no best pH level. The enzyme is most active under basic conditions (pH 0--‐5).