Answer:
All statements are true and explain the function of most organelles present in the cell.
Explanation:
I remember the following:
-The nucleus directs cell activity: the nucleus is where the genetic information is found and by means of gene expression it controls the cellular functions.
-Ribosomes produce proteins for the cell: Ribosomes make messenger RNA proteins (mRNA) by connecting amino acids together
-These proteins are then moved through the cell by the endoplasmic reticulum: it is a network of membranes within the cell through which proteins and other molecules move
-The Golgi apparatus packages and distributes proteins from the endoplasmic reticulum: It transforms and exports protein to the rest of the body. Proteins, in their passage through the Golgi apparatus, carry out a modification process.
-Vacuoles store water, waste products, food, etc: vacuoles store substances, in plants they occupy a large percentage of the cytoplasm and change their size during ormoregulation.
-Lysosomes break down waste material and debris: They contains hydrolytic enzymes that allow intracellular digestion of macromolecules
-Mitochondria break down sugar molecules to supply energy. Similarly, chloroplasts capture the energy from sunlight and convert it into chemical energy: Chloroplasts and mitochondria through the processes of cellular respiration and photosynthesis produce energy necessary for the vital functions of the cell.
-The cell membrane protects the cell and controls what enters and leaves it. The cell wall supports the cell membrane, maintains the cell’s shape, and protects the cell. The cytoplasm supports and protects organelles in the cell: The membrane is the support of the cell and through it there is exchange with the external environment. The cytoplasm is the one that supports the rest of cellular organelles
Answer:
Population of some organisms increases and some decreases with the increase in temperature.
Explanation:
The population of certain species such as Nassuar grouper, Spotlight parrotfish and Queen angelfish increases with the increase in temperature while some species such as yellow tail snapper, sponges and algae decreased in population with the increases in temperature. This is because some species needs high temperature so increase in temperature increases the population while some species needs low temperature so high temperature kill them and population is decreased.
Answer:
Identify the dependent and independent variables in the following examples. a. Height of bean plants is recorded daily for 2 weeks growing in different fertilizers.
Height of the bean plant is the dependent variable while the different fertilizer is the independent variable that the bean plant height depends on
Explanation:
Answer:
radiant energy to chemical energy
Answer:
The box will not move because balanced forces are acting on it.
Explanation:
According to Newton's first law of motion, an object will remain in its state of rest or motion along a straight line unless acted upon by an unbalanced force.
An unbalanced force is an individual force acting on any side of an object which is not balanced by a force of equal magnitude acting in the opposite direction.
From the image, two forces of equal magnitude of 10 N are pulling the 100 kg box in opposite directions. Since the two forces, 10 N each are pulling the object in opposite directions, they are balanced forces. Therefore, the box will not move because balanced forces are acting on it.
