Pumps are transporters that are able to harness energy provided by other components in the cells to drive the movement of solutes across membranes, against their concentration gradient. This type of transport is called:
What will be an ideal response?
Active transport
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_______ is a connective tissue that cushions joints and creates a solid yet elastic structure in areas such as the ear and the nose. The skeletal system utilizes two main types of cartilage to support skeletal growth, integrity, and function
Fill in the blank(s) with the appropriate word(s).
The first information storage molecule was probably ____
a. DNA b. RNA c. protein d. carbohydrates e. lipids
Which of the following statements describes chromatin?
A) Heterochromatin is composed of DNA, whereas euchromatin is made of DNA and RNA. B) Both heterochromatin and euchromatin are found in the cytoplasm. C) Heterochromatin is highly condensed, whereas euchromatin is less compact. D) Euchromatin is not transcribed, whereas heterochromatin is transcribed.
The condition called parasitism is characterized as a(n)
A) relationship between two organisms where only one member benefits and the other is unharmed. B) relationship between two organisms where both members benefit. C) nonsymbiotic relationship. D) unsuccessful microbial invasion due to the presence of preexisting microbes. E) relationship between two organisms where one member harms the other.