A
what does MyPlate recommend?
a. 40% grains, 20% vegetables, 20% fruits, 20% proteins, large portion of dairy
b. 20% grains, 30% vegetables, 30% fruits, 20% proteins, small side of dairy
c. 30% grains, 20% vegetables, 30% fruits, 20% proteins, large portion of dairy
d. 30% grains, 30% vegetables, 20% fruits, 20% proteins, small side of dairy
d. 30% grains, 30% vegetables, 20% fruits, 20% proteins, small side of dairy
1g of carbohydrates provides:
a. 2cal
b. 4cal
c. 6cal
d. 9cal
b. 4cal
1g protein provides:
a. 2cal
b. 4cal
c. 6cal
d. 9cal
b. 4cal
1g of lipids provides:
a. 2cal
b. 4cal
c. 6cal
d. 9cal
d. 9cal
what is cellulose?
a. simple carbohydrate
b. protein
c. lipid
d. complex carbohydrate
d. complex carbohydrate
what is the role of cholesterol in the plasma membrane?
it is a component of the PM that contributes to its fluidity
what happens to a cell in a hypotonic solution?
cells burst
vesicles used to store food, water, and other materials needed by the cell
what are channel proteins?
transport proteins that allow facilitated diffusion of particles without changing its shape
what are carrier proteins?
transport proteins that allow facilitated diffusion of particles while changing its conformation
what happens to cells in a hypertonic solution?
cells shrink
what are lysosomes?
vesicles that contain substances that digest excess or worn-out organelles and food particles
what is the role of carbohydrates in the plasma membrane?
a component of the PM attached to proteins defining the cell's characteristics
what are bound ribosomes?
ribosomes that produce proteins that will be used by other cells
state two characteristics for cilia
short
numerous
state two characteristics for flagella
long
one or two per cell
what are the cell walls of plant cells composed of?
cellulose
what are the cell walls of prokaryotic cells composed of?
peptidoglycan
why are mitochondria considered the powerhouse of a cell?
they produce energy by breaking down glucose to produce ATP
how much energy is provided by the given food:
- 4g of carbohydrates
- 16g of lipids
-9g of proteins
-2g of minerals
3g of vitamins
196 calories
how much energy is provided by the given food:
- 0.7g of carbohydrates
- 0g of lipids
-9.75g of proteins
41.8 calories
what is the formula to calculate the total magnification of a light microscope?
=magnification of optical lens x magnification of objective
how much energy is provided by the given food:
- 0g of carbohydrates
- 1.6g of lipids
-8g of proteins
-0g of minerals
-0.3g of vitamins
46.4 calories
how much energy is provided by the given food:
- 13g of carbohydrates
- 2g of lipids
-9.5g of proteins
-0g of vitamins
108 calories