Plant pigments (chlorophyll) are found in these organelles. Select one: a. Golgi
ID: 96744 • Letter: P
Question
Plant pigments (chlorophyll) are found in these organelles. Select one: a. Golgi apparatus b. Nucleus c. Endoplasmic reticulum d. Mitochondria e. Chlorplasts Sodium ions(Na+) are moved across nerve cell membranes against a concentration gradient during the transmission of nerve impulses. This is an example of ...... Select one: a. Active transport b. Osmosis c. Diffusion d. Facilitated Diffusion e. Phosphorylation The body temperature of many organisms, for example snakes, fluctuate with the external environmental temperature. How do these organisms maintain optimal membrane fluidity when the temperature decreases below freezing? Select one: a. They incorporate more unsaturated fatty acids into the membranes b. They incorporate more saturated fatty acids into the membranes c. They suffer frost bite because they are not capable of altering the fluidity of their membranes d. They incorporate more proteins into their membranes e. They incorporate more cholesterol into the r membranes for insulation The drop of red dye added to a beaker of room temperature water was following .. Select one: a. Path of least resistance b. Concentration gradient c. Its heart d. Pressure gradient e. Salt gradient What do your immune cells use to determine whether to attack a cell or not? Select one: a. Recognition proteins b. Cholesterol c. Phospholipids d. Receptor proteins e. Transport proteinsExplanation / Answer
6) Answer is E
Plant pigments are found in chloroplasts. Chlorophyll is the primary pigment in plants and it gives plants their green color
7) Answer is A
Sodium ions movement in nerve cells are example of active transport. It is the action of a transport protein called the sodium-potassium pump.
8) Answer is A
Body temperature of snakes, for example fluctuate with external environment. They maintain fluidity by making kink via C=C means by adding unsaturated fatty acids.
9) Answer is B
The drop of red dye added to a beaker of room temperature water.
When you add a drop of red dye in a beaker of water, with time the drop will spread and become paler, faint colored.
It shows example of concentration gradient.
10) Answer is A
Immune cells use recognition proteins whether to attack a cell or not.
Immune response consists of :
Recognizing a potentially harmful foreign antigen
Activating proteins to defend against it
Attack
Control and end the attack